Iron spectrum in the 200–300 nm range emitted by an inductively coupled argon plasma

Specfrochimica

kf0.

VOI.

378.

NO

2. PP.

14.(-M.

058c9(47/~2/02014~~3.~/0

1982

PereamonPressbd.

Prinlcdin Great Rricsin

Iron spectrum in the 200-300 nm range emitted by an inductively coupled argon plasma E.

MICHAUD

and J. M. MERMET

Laboratoire de Physicochimie Industriel!e. bt 401. Institut National des Sciences Appliquees. 20. Avenue A. Einstein, 69621 Villeurbanne Cedex, France (Received 3 August 1981) Abstract-In order to make a comparison with the available wavelength tables, the iron spectrum has been studied in the 200-300nm range in ICP-AES. About a hundred lines have been found that have, so far, been unreported. Examples of spectral interferences and conclusions on the field covered by the various tables are given.

1. INTR~DIJ~~I~N THE INDUCTIVELY coupled plasma (ICP) is now sufficiently widespread throughout the world to justify the publication of several wavelength or spectral interference tables[ l-31. It is well known that the level of physical or chemical interferences is usually weak. On the other hand, spectral interferences are important because of the richness of the emitted spectra and the line broadening[4-6]. We have already indicated that a minimum wavelength separation between an interfering line and the analytical line is necessary in order to avoid a partial overlap of the two lines. Two tables have been published dealing with spectral interferences in ICP-AES. One [4] is based on the MIT tables 173and other 131on the NBS tables [8]. In this latter case, BOUMANS has adopted the line intensities determined with the NBS copper arc to the ICP. The choice of the NBS tables results from the homogeneity of the line intensities which facilitates the adaptation to the ICP. On the other hand, the NBS tables are certainly not as complete as the MIT tables. A wavelength table especially devoted to the ICP is in progress [9], but at present, no publication is available. That is why we have thought it useful to study the spectrum of one element in order to check the field covered by the different tables in terms of wavelengths. Iron has been selected because of its rich spectrum. Moreover, Fe is a very common matrix. The 200-3OOnm wavelength range has been chosen because most of the sensitive lines are located in this area. 2. EXPERIMENTAL FACILHTB~ In order to obtain a useful table, a classical ICP system has been used. A 27 MHz Plasmatherm generator has been combined with a pneumatic nebulizer. The only modification is the setting up of a sheathing gas at the exit of the spray chamber UOI [l] R.

K. WINGE.V. J. PEIZIZSON and V. A. FASSEL. Appl. Spectrosc. 33.206 (1979). [2] M. L. PARSONS,A. FOILVTER and D. ANDERSON. An Atlas of Spectral Interferences in ICP Spectroscopy. Plenum, New York (1980). 131 P. W. J. M. BOUMANS, Line Coincidence Tables for Inductively Coupled Plasma Atomic Emission Spectroscopy. Pergamon Press, Oxford (1980). 141 G. F. LARSONand V. A. Fassn~, Appi. Spectrosc. 33,592 (1970). [5] J. M. MERMET and C. TRASSY.Spectrochim. Acta 36B, 269 (1981). 161 A. BATALand J. M. MERMET.Spectrochim. Actu 36B, 993 (1981). [7] G. R. HARRISON, M.J.7’. Wuvefength Tables. MIT Press, Cambridge, Mass./London (1969). 181 W. F. MEGGERS.C. H. CORLISSand B. F. SCRIBNER,Tables of Spectral Line Intensities: Part I, Arranged by Eiernents. Part II, Arranged by Wuveiengths, N.B.S. Monograph 145, U.S. Government Printing Office, Washington, CD. (1975). [91 R. K. WINGE. V. PETERSON,V. A. FASSELand M. FLOYD,Abstracts of the Pittsburgh Conference, Atlantic City, Paper No. 397 (1981). [IO) J. M. MERMET, C. TRASSY and P. RIPOCHE.Developments in Atomic Plasma Spectrochemicat Analyses, Heyden, London/Philadelphia (in press). 145

146

E. MlCHAUDand J. M. MERMET

allowing us the possibility to work a long time with a high salt concentration (> 1 g I-‘). In this case, no deposit is observed in the injector made of alumina. Several iron solutions have been used, especially when non-reported lines have been observed. The different facilities and operating parameters are stated in Table 1. The salt concentration was 1 gl-‘. 3. WAVELENGTH ASSIGNMENT Several wavelength tables have been used to determine the wavelength of the observed lines: the MIT tables [7], the Zaidel tables [ll] and the NBS tables [12], the later one dealing with the wavelengths of 18 elements below 300nm. More than a thousand lines have been observed under compromise conditions for analyses and for a concentration of 1 gl-‘. Among them 100 lines are not reported in the previous tables. On the other hand, several lines reported in the MIT tables have not been observed in this experiment. An example of non-reported lines is shown in Fig. 1. It must be noted that lines of this type always have low intensity.

Table 1. Operating parameters of the ICP system

-

11288.370 1288.373

-

11288 076

Fig. 1. Example of iron spectrum (1 gl-‘) obtained with the operating parameters described in Table 1. including some non-reported lines. [ll] A. N. ZAIDEL, V. K. PROKOFJEV, S. M. RAISKLI,V. A. SLAVNYIand E. A. SHREIDER,Tables of Spectral Lines, IFI/Plenum, New York/London (1970). [I21 C. d. MOORE.An U/trmiolef Muitiplet Table. Circular of the NBS No. 488, Section 2. U.S. Government Printing Office, Washington, D.C. (1952).

iron spectrum in the 200-300 nm range

147

We have only indicated a rough value of the intensity (based on a 1-5 scale) because of the difficulty of establishing an absolute scale of intensities. This scale depends on the excitation temperature for the lines in the same ionization stage, on the electron number density and the observation height for the lines in different ionization stages. Nevertheless, we have given a tentative scale mainly to indicate which lines are intense or weak. An example of a classification is given in Fig. 2. 4. EXPLANATIONOF TABLEOF IRONSPECTRUM The first column indicates the ionization stage and the wavelength in nm when available from a table. If not, the wavelength has been determined by interpolation. The second column gives the intensity with the l-5 scale, the third column indicates the wavelength table used as the reference, with Z for the Zaidel tables, M for the MIT tables, N for the NBS tables and ? for a non-reported line. The order of priority has been the ZAIDEL table, then the MIT table and finally the NBS table. The last column gives the possible interferences (within 0.05 nm) on the sensitive lines from Ref. [l]. An asterisk indicates a line whose wavelength separation with the interfering line is below 0.02nm which means that at least a partial overlap will be observed whatever the resolving power 161. 5. EXAMPLESOF APPLICATIONS We have selected several elements (Mn, Si, Co) whose sensitive wavelengths taken from Ref. [l] are located in the 200-300 nm range. In Tables 2, 3 and 4, we have listed the possible interferences that are observed with an iron solution of 1 gl-’ under the same conditions as mentioned in Section 4, i.e. a separation of up to 0.05 nm with an asterisk for AA ~0.02 nm. From Tables 2, 3 and 4 it may be seen that usually the coverage of the MIT tables is almost complete; only some lines given by these tables

\

293.7810

c

293.690

@.. . ____

Fii. 2. Example of iron spectrum to illustrate the 1-S intensity scale. Table 2. Spectral interference of a matrix of iron (1 gl-‘) according to various tables for prominent lines of Mn Uavelength

(ti)

This work

Ref

17I

Ref 121

II 257.610

I

237.574

+

+

II 259.373

II 259.373 f

+

+

Ref 131

*

* II 260.569

{ I II 260.566 260.530

::I

II 294.920

II 293.930

I

II 293.951 * I 293.908 *

+ +

0 0

279.482 :

II 293.306 I

279.827

I

280.106

0 I

279.778

+

0 0

+ the same interferent wavelength is reported, - no wavelength is reported, 0 this wavelength range is not covered.

l

E. MICHAUD and J. M. MERMET

148

Table 3. Spectral interference of a matrix of iron (1 gl-‘) according to various tables for prominent lines of Si (see footnotes of Table 2 for meaning of symbols) h’avelength

1

251.611

I

212.L12

Thls

(51)

work

Ref

(7

Ref

1

121

ftef

13j

1 25’.657

1

288.158

7

288.16

1

250.690

II

250.701*

1

252.851

{I

25i.625

{I

2h.625

-

*

0 0 1: 252.888

252.817 I

251.432

II

251.438

x

+

0

I

252.411

I

252.429

*

+

0

1

221.667

11

221.706

1

251.920

I

221.0?9

+

0 0 0

II 221.095 *

0 I

221.069 221.110 -

tI I

243.515

II 243.494"

I

220.798

II

I

205.813

I

+

+

220.842

(

0

220_80,

0

205.810”

0

Table 4. Spectral interference of a matrix of iron (1 gl-‘) according to various tables for prominent lines of Co (see footnotes of Table 2 for meaningof symbols) Wavelength

(Co)

This

11 238.892 II

228.616

II

237.862

I1

230.786

II

236.379

wrt

Ref

II 238.863

II

237.853

231.160

Ref

121

+

4

228.615

0

+

*

131

+

+

0

I

{

23i.363

II 231.122 II 231.203 231.129

+

0

+ +

0 0

II 238.146

II 238.324

+

0

II 231.405

II 231.396 *

+

0

II 235.342

II

235.368

II

234.428

II

Ref

0

236.3g4 II

171

+

0

238.636

II

234.426

Ii

231.198

,I

234.739

x

+ 231.484

0 0 0

not observable under our operating conditions. On the other hand, the tables from Ref. [2] cover a small number of lines. In the Line Coincidence Tables [3], based on the NBS tables [8], a great number of lines are not reported as a result of the excitation conditions of the copper arc. Although the MIT tables are more complete in terms of wavelengths, the intensities indicated for arc and spark are not applicable to ICP-AES and, in addition, are not as consistent as the intensities in the NBS tables, which explains BOUMANS’ preference for using the latter as a basis for the first edition of the Line Coincidence Tables. Thus a rather uniform intensity scale could be preserved, but completeness as to the listing of wavelengths had to be sacrificed. There is certainly a need for comprehensive wavelength tables or publications devoted to the ICP SO that tables such as the Line

Iron spectrum in the 20&300 nm range

149

Coincidence Tables [3] may be completed in the next few years. BOUMANS [13] has recently communicated that work aimed at a substantial extension and updating of the Line Coincidence Tables is in progress in his laboratory. In addition to collecting more data on the wavelengths of lines emitted by ICPs, it is necessary to study and classify the hitherto not reported lines that are observed in line-rich spectra and to propose excitation mechanisms for these lines.

r

Table of iron soectrum emitted

a

hm)

I ref

spect.

interf.

by an

argon ICP (I gl-’ iron)

T

Xhm)

Iref

I

300.095

i

2

II 297.051

i

z

I

300.045

I

z

1. 297.010

5

Z

z

I

296.936

i

Z

2

I

296.848

1

z

II 300.006 I

299.951

i

I

299.639

!

299.584 299.60

.

1

?

z

296.690

5

z

M

I

296.626

1N

?

I

296.581

2

z

296.526

i

Z

b II 297.056 x

g I

296.728

N

299.443

i

2

II 296.504

i

Z

299.38

L

?

II 296.463

3

z

r II 296.452 L

II 296.413

2

2

,r II 296.452

299.241

LM

I

299.164

!

z

296.356

LM

I

299.039

s

z

296.259

1M

296.212

1H

II 298.936

1

N

I

298.894

L

M

II 296.127

2

I

298.847

1

Z

I

296.066

1z

I

298.729

3

2

I

296.030

1z

I

298.646

2

Z

I

295.599

3

z

I

z

I

295.968

3

z

II 298.483

j

Z

295.934

1z

I

298.357

5

Z

I

295.737 5

2

I

298.185

3

z

I

295.670 2

Z

2

I

295.465 2

z

I

295.394 i

z

I

295.349 3

z

298.144

5

II 298.096

LM

I

2

298.054 297.987

II 297.935

z

295.23

IM 3

297.805

1z

l?

295.156 1z

z

295.11 I

lb 295.088

l?

295.024 3

z

297.69

1

?

I

297.655

1

z

294.970

I

297.613

2

z

II 294.918 3 294.895 1z 294.843 3

z

294.788 5

z

2

z

I

297.57

1

?

I

297.53

1

?

I

II 297.594

294.713

12 z

In II 294.920 * In II 294.920

1M

I

297.478

1z

I

297.324

5

z

I

297.228

2

z

I

297.19

1

?

II 294.440 4

[13] p. W. J.M.

a II 296.513

z

II 298.555

I

interf.

I

299.527 I

296.81 I

z

II 299.730

-I

spect.

294.570 1z 294.505

2

Z Z ;a I

294.418

BOUMANS, Proc. 9th Int. Conf. Atomic Spectrosc. and 22nd Coil. Spectrosc. Int., Tokyo 1981, Plenary and Invited Lectures, Pure Appl. Chem. to be published.

150

E.Mrc~au~and J.M.MERMET

294.357

1

z

Ga I

294.364 n

[I 291.709 1 z

294.30

1

?

Th II 294.286 x

II 291.615 1 Z

294.263

1

2

Th II 294.286

I

[ 294.134

4

z

1 294.059

2

Z

I

291.216 4 Z

Z

I

291.092 1 2

[I 293.951

2

I 293.908

12

291.430 1 z 291.38 1 ?

kin

II 293.930

Mn II 293.930

II 291.076 1 M Er II 291.036

Z

290.986 1 M Er II 291.036

I 293.690 5

z

t-lg

290.950 2 z

293.645 2

Z

Mg II 293.654 %

L 293.781 3

II 293.602 2

I

293.55

l?

293.437

12

II 293.654 I

290.886 2 Z V II 290.882 x

II 290.786 1 Z

z

I

290.752 2 z 290.72

1 ?

293.381 1M

290.642 1 M

293.181

1z

II 290.612 1 M

293.143

1z

290.538 1 M

293.066

1M

290.416 1 Z

I

292.962 1z

II 290.246 1 Z

r

292.901 4

I I

I

I

292.810

I

I

12

292.788

1M

Ib II 292.781 n

292.755

12

Ib II 292.781

290.191 2 z 290.138 2 Z 290.08

1 ? Cu 11'290.003

290.02 1 ? cu II 290.003 *

2

I

292.579 2

2

II 289.873 1 M

292.536 2

Z

II 289.726 2 Z

292.435

M

II 292.659 4

I

I

z

1

292.385 3

289.941 3 Z

II

292.464

289.669 1 Z

I II

292.402

289.60 1 ?

I

2 40 II 292.339

I

289.504 3 Z Cu II 289.484 e

I

292.329 3

2 40 II 292.339 n

11 289.478 2 Z Cu II 289.484 x

I

292.262 2

2

I

289.450 3 Z Cu II 289.450

I

289.376 1 Z V

II 292.202 292.16C 292.099 I I I

12 1r

289.343 1 M V

12

II 289.283 2 Z V

292.069 2 292.029 291.984

289.248 2 Z

lr?

289.173 1 Z Yb II 289.138

12

I

289.141 1 N Yb II 289.138 H

n rl I 291.832

12

I

291.835 2

z rl I 291.832 R

I

291.802 3

2

2

z

II 291.747

II 289.332 R II 289.332

I

291.904 2 291.882

I

2

II 289.332

:, iii,

;iV

II 288.963

Iron spectrum in the 200-300 nm range

151

Table u

2 Z

286.06

l?

II 288.731

1M

285.97

l?

I

12

I

288.781

288.632

II 288.593 288.54

2

285.948 1H Z

I?

I

285.890 12

II

285.834 3

I

288.373

II 288.370 288.28 288.16

II 288.076

I

3 Z Z l? l?

!, z 1M

287.864

2 H

II 287.680

2 z

287.530

3 z

I

287.488 1z 287.417

3 z 3 z

II 287.238

Z

II 287.234

3 z

II 287.106

II

285.717 2

II

285.693 3

z

Si I 288.158 x

II

285.639 2

z

Na II 288.114

II

285.614 2

z

Na II 288.114

II

285.567 3

z

z

I

285.368 2

I

285.295 1z

Cr II 285.568 I+

II

285.286 1N

I

285.180 4

II

285.064 1N

z Na I 285.301 st Na 1285.281 n

Nb II 287.539 w

Na I 285.301 H Na

Nb II 287.539

II 287.340

287.19

285.741 1N

V II 288.274 P

z

I

I

II

285.43 l?

287.912

287.730 3

z

285.781 12

II 288.478 12

Ga I

287.424 x

285.00 l?

MO II 287.151

2 Z

MO II 287,151

II 287.060

1z

I

286.983

1z

I

286.931

3 z

Tm II 286.923 SE Tm II 286.923

Th II 287.041 )t

II 286.887

3 z 2

I

286.825

1z

I

286.756

1z

286.731

1z

I

286.663

2 z

286.63

l?

Hg I 285.212

Cr II

284.984

E

II 284.961 2

z

Cr II 284.984 Ir I 284.972 s

I

284.871 2

z

II 284.833 2

z

MO II 284.823 BE

II 284.805 3

z

MO IL 284.823 x

II 284.779 2

N

Ko II 284.823

II 284.721 1N

z

I

I 285.281 e

Ir I 284.972

l?

I,lI 286.845

z

I

284.683 1z

I

284.554 3

284.65

l?

Cr II 286.674 w

II 284.497 1N 284.46

z Ta II 284.446

l?

Ta II 284.446 x

II 286.547

1N

Cr II 286.511

I

284.398 4

z

TalI

286.498

1z

Cr II 286.511 n

I

284.363 3

z

Cr II 284.325

286.386

2 z

286.343

2 z

Sn I 286.533 n

286.249

1z

Cr

II 286.190

1N

284.25

II 286.119

1z

II 284.207 1

II 284.332 2 N

II 286.257 R

Cr It 284.325 x ThH

II 284.268 1N

284.446

284.281

ThlI 284.281 I+

l?

ThlI 284.281 N

I52

E. MICHAUD and J. M. MERMET

Table cont.

II

284.135

1

N

I

281.751

2

i

II

284.065

3

2.

II

281.711

1

I

I

284.043

3

z

Sn

I

283.999

281.666

12

II

283.982

3

z

Sn I

283.999

281.59

1

:

II

283.953

3

2

Sn I

283.999

I

281.551

1

I

283.93

2?

I

281.502

1

I

I

283.845

1

M

II

281.361

12

I

283.812

3

2

I

281.329

5

II

283.730

2

2

I

281.231

lk

283.70

l?

II

281.127

1)

I

283.632

2

z

281.08

l?

II

283.572

3

z

281.026

2

2

I

283.546

2

z

280.981

2

2

I

283.475

1N

280.862

12

I

I

283.418

1z

283.38

2?

283.340

IZ

ThlI

283.730

ThlI

283.730

Cr II

n

%

283.563

+

II

I

Pb I

283.306

280.833

12 ll"

I

280.698

4

II

283.310

2

2

Pb I

283.306 x

I

280.607

12

283.244

4

z

ThlI

283.231

II

280.579

12

II

283.156

4

z

II

280.531

12

II

2

283.096

1z

I

280.486

2

2

283.04

I?

I

280.452

4

2

283.01

l?

I

280.402

1M

I

280.362

2

1

280.317

z

280.312

'l z

282.94

l?

I

282.881

2

z

I

282.789

2

2 z

II

282.743

2

I

282.650

12

I

282.599

2

z

I

282.556

4

11

282.459

1

282.43

l?

2

280.27

l?

280.225

1

z

280.19

I?

N

280.028

2

z

I

279.915

2

2

I

279.778

2

z

I

282.328

4

z

II

282.267

1

N

282.23

l?

MO II 281.615

2

280.785

I

N

MO II 281.615

M

Mg II 280.270 Pb I

280.199

Pb I

280.199

Mn I

279.827

MS II 279.806 II

279.665

1M

279.585

12

279.555

1z

282.163

1M

282.101

I

282.022

1M

Hf It 282.022

281.990

IM

Hf II 282.022

I

281.951

L

N

I

279.501

I

281.929

2

z

I

279.470

281.88

l?

M

Mg II 279.553 RU

R

I

279.535

Mg II 279.553

)f

RU

279.535

n

1z

RU

279.535

IZ

Mn I

279.482

n

153

Iron spectrum in the 200-300 nm range

Table cont.

II

279.309 2:

2

II

279.205

I4

II

1

279.146

1

2

279.101

1

H

279.056

1 n

278.980

I

278.948 1

z

I

278.810 4I

z

II

279.394

n

278.726 I

I4

278.678 1

M

278.521 2!

z

L 276.277

z

t II 276.259 n r II 276.259 R

[I 276.244

H

c 276.203

z

[I 276.181

Z

276.090

2

II 275.933

M

lg II 279.079

1 z

I

II

’ II

-

c 275.786

Z

C 275.732

2

LI 275.702

Z

L 275.627

I

2

1

z

!

z

I

278.435 II

z

LI 275.574

II

278.370

i

z

II 275.491

I

278.184

1

z

I

I

278.070

1

z

is I

278.022

II

277.930

b

z

e I

277.983

I

277.884 11 z

I

277.822

1

z

II

277.692

1

2

II

?

275.90

z

275.443

:e I

275.459

:e I

275.459 )t

.u II 275.417 I

275.403

!

z

I

275.369

!

z

I

z

.u II 275.417 n [n I Ln 1

277.640

1

z

II 275.329

277.617

1

z

275.209

1

M

277.5

11

?

275.181

1

z

275.388

.u II 275.417 275.388 x

5r II 275.221 + rh II 275.217 JE

%D II 277.540

II

277.469

1

I

277.323

12

I

275.088

t 2

I

277.283

1 z

I

275.072

!

z

Ib II 275.048

1 z

I

275.014 i

2

ib II 275.048

217.251

2.

II 274.932 5 2

2

I

277.212

I

277.208 3 2

I

II

277.118

I,II 274.698 5 2

II

277.051 12

I

I 12 276.96e

274.582 12

I

) 2 276.93C

2

274.50.E 1

2

II

L 3 276.892

2

I

274.45: 2

2

1 1 1 276.844

I

274.403 3

i

276.811 11

II 274.32C 5

i

I

274.20; 4

i

Cr 11 276.654

II 274.14( 1

i

Cr II 276.654 x

I

1

i

3 11 276.47f

II 273.951 5

;

I

i li 276.43:

I

273.82

I

276.311 -

I

273.76~ 4 -

I

12

! 4 I,II 276.75i I

276.691 L li

i 276.66( II

II 274.648 5

i

1 i

1

rh II 274.756

274.756 12

274.11:

1:

2 Zr II 274.586 *

Zr II 274.256

LU I

274.118 +

E. MICHAUD

154

and J. M. MERMET

Table cont. L

273.731

I

z

t

270.601

!

z

273.548

k

2

II

270.399

i

2

273.489

1

2

Zr II 273.486

L

270.245

1

2

c

273.427

L

z

MIXI

I

270.191

1

2

L

273.400

1

z

@in11 273.435

L

273.358

i

2

Pt I

L

273.435 x

273.396

269.977

1

M

I

269.911

!

z

269.816

1

2 2

273.294

LM

I

II

273.245

LZ

II

269.746

1

11

273.200

LM

I

269.702

12

I

269.628 2 z

273.135

1M

II

273.074

f+ 2.

I

272.882

2

I

272.802

2 z

II

272.754

5

I

272.605 2

II

272.4ae 3 272.42

l?

I

272.3%

4

II

272.27l

269.599

z

~~ II 272.778

I

269.504 1 2

~~ II 272.778

I

269.454 12

ra 11 269.452 K tr I

2. Zr II 272.649 z

z

I

12

Zr II 272.261 R

L,II272.204 12

Nb II 272.198 I

11

Nb II 272.182 R

272.18; LM

269.284 2

2

269.26C 3

2

MIXIT 269.206 w

I

268.98: 12 268.94i 12

272.OYC 5

2

272.02C

I

z

I

271.90; 5

i!

268.78C 1 b

z

268.74

271.841 2 271.77! 12

II

271.65;

II

271.62; 2 271.53;

11

271.44: 5 271.33

I

271.23: 12 271.18~ 2

IX 268.796

II

2

268.475 3

2

Ta

Nb II 271.622

I

268.403 1

I

MO II 268.414

268.29f 1

P

Mn II 271.241 H 2

I

268.15: li

I

268.04: li

I

268.Olf 1

i

I

267.906 3

i i

271.05!

1 2 1n I 271.026

I

270.991

I

If

270.93'

1r

II

270.901 2

2

I

270.85' 2

2

I

270.75

12

II

270.71:

12

I

3

I

z

In I

271.026

267.80: I

Ge I

270.963

267.681: 1) 267.611 1E

Mn If 267.876

Au I

267.595 n

Ta II 267.590 w 267.52( 1

I

268.517

268.221 12

2

I

I,X 270.65

v

1';

II

l?

II

2

Nb II 271.662 x

12

II

268.921 3

268.671 12

1N

I

Th II 269.242 n

269.145 12

I

I

269.423

269.386 1P

I

I

JJ II 270.171 *

12

269.553 12

II

270.651

gb II 269.706

I

z

in I

i

267.32: I i 266.954 1:

-

Iron spectrum

266.90

L

?

T

in the 20&3&l

nm range

11

263.007 2

z z z

I

266.792

1

z

I,ll262.959 3

I

266.697

1

i!

II

II

266.663

3

II

266.466

3 2

II

266.421

262.829 5 262.724 1z

2

II

262.650 2

z

LP,

II

262.567 5

z

12

I

262.337 3

Z

266.256

12

II

262.167 5

z

266.231

12

II

262.069 2

z

266.206

12

II

262.041 3

z

I

266.120

12

II

261.908 2

z

I

266.040

12

I

261.871 12

II

265.825

12

II

261.762 5

I

265.679

12

I

261.542 12

Lu II 261.542 n

I

265.615

12

261.50

Lu II 261.542

266.378 II

265.427

11

II

265.257

11

I

265.171

11

tr

I

266.479 K

in II 266.161

2

l?

I

261.449 12

Pb I

II

261.382 5

Hg I

265.204

I

261.277 12

Ge I

265.158 P

II

261.187 5

2

Be I

265.045 n

2

2

II

265.049

1

I

261.075 3

II

264.946

li

II

260.987 1F

264.843

li

II

260.944 1P

I

264.756

li

II

260.912 12

II

264.508

1)

I

260.858 2

2

II

260.709 5

2

260.683 2

2

i

261.418

I

264.400 2

II

264.201

1)

I

264.165

Ii

Hf II 264.141

II

264.113

11

Hf II 264.141

I

260.566 2

2

Mn II 260.569 x

II

263.955

1

Ir I

II

260.530 2

2

Mn II 260.569

263.764

! 2

II

260.504 12

263.710

1M

I

I

263.648

12

I

263.581

! 2

II

II

263.539

i

I

i

263.971 s

260.631 12

260.487 IZ 260.405 1M

1

ra II 263.558

I

260.356 1z

u II 263.553

II

259.940 5

la II 263.558 %

II

259.857 5 z

Ta II 260.349 x z 259.80915

259.543 IM

263.485

1M

II

263.319

12

I

263.259

12

I

259.404 1z

I

263.224

! Z

II

259.373 3

z

II

263.132

2

II

259.278 3

z

II

263.105

j Z -

SAB Vol. 37, No. 2-E

Sb I

259.643 1M

u II 263.553 it

259.51

l?

Mn II 259.373 n

156

E. MICHAUD

and

J.M.

MERMET

Table cont.

I

259.229

Ge

12

I

259.254

.

2

255.95

l?

255.848

12 1M

II

259.154

4

II

259.054

IM

II

255.750

II

258.879

1M

I

255.686 1z

I

258.798

I

255.630

z z

2

1z

258.795

3

z

I

255.565 2

II 258.588

5

z

II

255.545 2

II

255.41

l? 1z

I

258.454

3

z

II

258.258

4

z

II

255.373

I

258.221

3

z

I

255.318 2

z

P

z

I

255.283

Z

SC II 255.237

II I

258.096

2

257.984

1z

257.941 257.927

255.277 1z

1M

255.266

Z

1z

I

255.109 2

z

II

257.792

4

II

255.068 3

z

z

II

255.002 3

z

I

254.961 4

z

II

254.892 2

z

II

254.859 3

Z

254.808 2

z

II

254.733 2

z

I

254.687 3

z

254.667 3

z

I

257.669

2

z

I

257.574

2

z

II

II

257.437

3

257.321

1M

257.297

2

257.13

l?

Mn

II

257.610

z

M

Zr II 257.139 Y

II 257.084

2

z

II

257.052

2

z

I

254.598 4

z

Z

II

254.521 2

z

z

II

254.497 2

z

Zr II 256.887 n

I

254.471 3

z

Zr II 256.887

I

254.392 3

z

Zr II 256.764

II

254.338 3

z

II

254.273 1z

1z

I

254.210 3

z

256.546

1M

II

254.183 2

z

I

256.456

1z

II

256.347

5

II II

256.977 2

I

256.974

I

256.886 1z

II

256.840

2

I

256.787

1z

II

256.691

4

II

256.622

z

z

z

256.253

5

z

II 256.209

2

z

II

I II

I

254.097 4

z

Se II 256.321

II

254.067 2

z

L

I

253.936 1z

II 256.254

II

253.881 4

z

1M

II

253.850 2

z

256.027

2

z

SC II 256.025 x

II

253.820 2

z

In I 255.991

2

z

256.127

255.328 R

SC II 255.237

I

257.882 1M

I

SC II 255.237

SC II 254.522 x

Ir I

254.397 w

I

253.717 3

z

SC II 256.025

II

253.682 4

Z

In I

I

253.561 4

2 P 1253.565 x

256.015 x

256.015

HgI 253.652

Ironspectruminthe 200-3OOnm range

Tablecont.

z

:I

253.442

I

:I

253.363

/

:

253.401

PI

I

157

251.083

i

251.00

Z

Rh II 251.103 n

1

?

253.314

M

II 250.912

1

z

'noII 250.908 N

253.288

M

I

250.875

1

z

'pmII 250.908

250.849

1

H

2

253.253

z

253.144

M

I

250.790

2

z

II 250.701

1

H

[

253.069

!

z

:I

253.010

!

z

1

252.984

I

2

II 250.643

1M

LI 252.955

b

z

II 250.609

2 2

LI 252.908

I

2

1

z

252.817

I

250.549

12

Sb I

252.852

I

250.507

1z

Si I

252.851

II 250.388

! 2

I

252.744

i

Z

II 250.356

2 2

II

252.710

2

2

II 250.332

2 2

11

252.683

1

n

II 250.239 2 2

t1 252.629 3 2 II

252.539

k 2

L

252.502

2 2

I

252.429 3 2

I

252.367

3 2

I

252.285

5 2

I

IJ1249.889 G Si

I

si I

250.690 R

si I

250.690

Ga I

250.070

2

II 250.093 4 2 2

252.411

Mn II 249.857 Mn II 249.842

249.821 11 II 249.782 2

II 252.219 lk

2

B

I

249.773 it

2

B

I

249.678

249.730 lb

II 252.181 2

2

II 252.109 2

2

I I Rh II 252.053 Y

II 252.068 lk 252.03

250.169 2

Ru II 250.701 1z

l?

249.699 12 249.653 2 249.607

11

Rh II 252.053

LIL249.586 2

2

251.963 2

1

si I

251.920

II 249.523 1E

Be I

249.473

II 251.904 2

2

si I

251.920 I

II 249.489 11

Be I

249.473 n

I

251.810 4

2

I

I

251.766 2

i

II 249.318 4

i

II 251.712 2

i

I

i

I

I

251.657 li

Si I

251.611

Si I

251.432 n

II 251.491 li II 251.438 ? 251.37

i

1 ?

249.394 li

249.198 2 249.17

17

I

249.115 5

i

Rh II 249.077

I

249.064 5

i

Rh II 249.077 e

I

248.975

i Z

I 251.333 1 z

Hf II 251.303

II 248.948

? H

W

L 251.236 !

Hf II 251.269

I

248.895

2 2

Pd II 248.892 x

Rh II 251.103

I

248.814

5 2 -

2

LI 251.176 i Z CI 251.137 lp! -

II 248.923

Ta II 248.870

158

E. MICHAUD and J. M. MERMET

Table cont.

:

248.706

1

z

?t

I

248.111

L

248.669

2

z

?t

I

248.717

L

248.631

)

LI 240.634

Pd II

248.653

3s

248.624

II

n

A

II

246.591

2

M

I

246.515

3

Z

II

246.490

2

Z

LI

246.390

2

Z

246.351

1

2

2 II

246.328

2

z

248.598

s z

I

246.264

4

z

248.57

i

?

I

246.218

2

z

LI 248.507

1

M

II

246.186

3

z

I

I

2

II

246.128

3

Z

246.045

L

248.419

2

I

248.327

j

Z

II

2

M

II

248.265

!

2

II

245.878

3

2

II

248.211

3

Z

I

245.760

3

2

II

248.157

1

M

II

245.664

1

M

II

248.105

1

M

I

247.977

3

Z

I

247.948

‘(

Z

II

247.812

4

M

II

247.748

1

M

I

267.686

2

M

II

241.627

2

M

241.59

1

?

247.57

1

?

247.52

1

?

3

z 2

II

c

I

247.856

Pb I

247.642

+

Pb I

247.638

n

Pb I

247.638

245.589

1

2

Rh II

246.104

Ru 245.651

)t

Ru 245.644

)t

245.556

1

El

II

245.457

2

2

II

245.375

1

2

I

245.34%

2

2

II

245.292

1

I”

245.254

1

r

245.21

1

?

245.16

1

?

II

245.11C

1

F

II

245.02C

2

k

Ga I

245.007

x

II

244.99f

2

F

Ga I

245.007

n

Pd I

244.191

I

I

247.481

II

247.476

I

247.316

2

2

II

244.91E

1

k

I

247.28C

4

2

II

244.87:

1

k

I

247.234

2

Z

244.835

1

F

247.211

1

Z

I

244.111

2

2

II

247.06f

3

2

II

244.72C

2

k

II

247.041

1

M

II

244.64C

2

i

Pd 11 244.618

II

246.971

1

Z

II

244.61C

1

F

Pd II

246.951

2

M

II

244.556

3

2

246.888

i!

Z

II

244.511

1

z

246.811

1I

M

II

244.451

3

z

246.19

1L

?

t

244.387

1

,Il 246.713

II

Z

II

244.384

Z Z

LI 246.667

)

Z

I

244.257

2

z

244.15

1

?

I

244.618

x

Ironspectrum

in the

200-300nm range

159

Tablecont.

II

244.113

1N

II

244.042

2

11 241.331 5 Z ~8 11 241.318 so 241.17 1 ?

t4

I

244 .Oll

2

2

II 241.107 5 Z

I

243.974

2

z

II 241.052 S Z

II

243.930

3

z

II 240.865 1 M

I

243.818

1

z

It

243.710

Ag II 243.779

lZ

240.758 1 M

Z

.iI 243.699 II

243.661 1z

II 240.666 5 Z

I

243.634 1z

II 240.569 1 N

243.586

II 240.488 5 Z lM

II

243.581

Z

II

243.494 2

z

II

243.473 2

II

243.423 12

II

II 240.443 4 Z Si I

243.514 )c

II 240.260 2 Z :u II 240.272 n II 240.225 1 N :u 11 240.272

z

240.152 1 M II 240.027 2 M 'a II 240.063

243.349 1M 243.287 2

t-l

II 239.924 s z

II

243.227 2

z

II 239.866 1 M

I

243.102 12

II 239.671 2 M II 239.562 5 Z

II

243.088 12

II

243.007 3

z

II

242.915 2

Z

II

242.897 1z

II

242.879 1M

II 239.490 2 M Sn I

242.949

I

II 239.709

Ii I

239.452

239.43 1 ? Ii I

239.452

239.31 1 ? If XI 239.336 239.27 1 ?

II

242.837 2

II

242.719 1 M

Z

242.631 1 M

Au I

242.795

Rh II 242.711

II 239.147 3 M II 239.077 1 I

238.997 2 z 238.940 1 M

II

242.568 1M

II

242.536 1 M

II 238.863 5 Z :o II 238.892

II

242.458 2

M

II 238.743 2 M 'y II 238.736 w

II

242.414 3

z

'a II 238.706

II

242.321 2

M

II 238.640 1 M :o II 238.636 t

II

242.268 2

n

I

238.598 1 z :o II 238.636 :e I

I,JI241.988 1M 241.941 1M II II

241.844 1M

11 238.439 4 z

241.787 2

II 238.324 5 Z :o II 238.346

II

z

l?

'e I

241.671 1M

II 238.207 5 Z .r I

241.58

I?

II 238.076 5 Z

241.506

1z

II 237.927 5 z :a 11 237.969

241.70 II

238.578 x

II 238.501 3 Z

238.326 t 238.162

160

E. MICHAUD and J. M. MERMET

Table

II

237.853

M

237.787

cont.

,

:o II 237.862 %

M

234.98

?

4s I

234.984 E

234.94

?

is I

234.984

z

Be I

234.861

2

[I

234.030

II

237.643

I

2

C

234.810

2

II

237.519

i

2

[I

234.629

M

I

237.452

L

2

II

234.533

1

z

Ni I

234.554

ClI

237.362

i

z

234.508

!

2

Ni I

234.554

234.428

i

2

Co II 234.426 R

237.723

Al I I

237.312

II

Al I

237.312

II

234.396

i

II I

237.277 x

II

234.349

i

Z

M

Al

II

237.263

II

234.225

1

237.050

i

z

II

234.196

1 2

236.996

!

2

I

234.157

L N

234.093

LM

234.045

1N

233.958

!

Z

233.800

5

Z

Ga

Rh II 233.47!

II

II

Co II 234.426

2

237.143

I

2

!

I

II

!

237.335

i

236.946

1

2

II

236.93

5

?

II

236.859

5

2 II

236.659

!, Z

236.61C

l?

233.453

1

M

236.585

ll"

233.39

1

?

236.483

5

II

233.280

5

z

236.394

2

2

II

233.131

5

z

11

236.202

4

2

I

232.964

12

II

236.172

2

E

II

232.795

1r

II

236.025

II

232.739

5

5

2 2

II

232.635

1r

232.58

l?

II

II

II

235.995

2

co

II

236.379

x

II

235.955

2

P

II

235.91c

5

2

II

232.557

1F

E

II

232.233

1r

11

I

235.701

2

235.64

1;

235.591

1)

II

232.169

lh

2

I

232.036

3

231.977

1F

231.853

1E

231.76

1

II

231.396

1r

Pb II 235.134

I

231.310

2

Hf II 235.122

II

231.203

1P

235.52

:

235.481

4

i

11

235.44;

3

i

11

II

235.361

11

235.241

11

235.16;

11

235.12!

Sn I

II

237.484

Co II 235.342

231.129

Pb II 235.134 n Hf II 235.122 x

I

233.828

Ag II 233.137

%

2

w II 232.609

Hf II 232.247 w Sr II 232.235 x

11

11

I

235.04( J

II

231.122

I

230.899

2

232.003 232.003

Co II 231.405 n i

Cd I

231.284

Co II 231.160 Co II 231.160 i

-

I

Ni I

s

1) 2

Ni

i

Sb I

231.147 n

Ironspectrum

in the 200-300

nm range

161

Table cont.

1n

I

227.282 1z

230.638

12

In

I

227.207 2

I, II 230.473

12

Ba II 230.424

230.731 I

II

230.606

I

227.178

I

227.086 1z

I

226.910 1z

2

LZ

I

230.358

I

230.342

I

230.168

2

I

230.117

12

II 226.885 1 M Al I

226.922

I

230.059 12

Al I

226.910

I

230.014

2

z

Sn I

226.891 w

I

229.922 2

z

Sn I

226.891

2

I

229.866 1z

II

229.823

I

229.817

I

229.693 1z

II

Ni II 230.300

Z

II 226.856 1M

z Z

I

229.385 1z

I

229.252 2

226.922 %

Al I

226.910 %

I

226.747 3

z

I

226.690 2

z

II 226.625 1M II 226.599 2 Pd II 229.651

1M

229.441 2

Al I

II 226.814 1M

229.667 1z 229.611

I

4

z 2

z

Re I

I

M

226.505 1z

226.555

Te I

226.555

Cd II 226.502 K

229.449 I

226.440 2

z

II 226.323 1M

z

Te I

Al I

226.346

l?

II 226.268 2

I

229.112 1z

II 226.085 2

z

I

229.054 1z

II 226.008 3

z

I

229.006 12

I

z

Te I

I

228.903 1z

z

1s II 225.585 n

229.14

Ta II 228.916 H Rh I

I

228.763 1z

I

228.725 2

z

I

228.409 2

z

I

225.951 2

2

II 225.690 1z

As I

228.812

II 225.643 1M

Cd I

228.802

II 225.569 2

Re I

228.751 H

Re I

228.751

Te I II 225.490 1M

225.548

Ba II 225.473 w

II 225.439 1M

228.366 1z

II 225.407 1z II 225.312 3

z

I

z

1z

I,ll227.792 3

225.902

II 225.779 1z

228.857

228.330 1z 228.308

Ta II 226.230

z

225.187 2

Ni II 225.386

II 225.156 1M

I

227.767 1z

II 225.093 2

z

I

227.710 1z

II 225.017 2

z

I

227.602 3

II 224.906 3

z

I

227.559 1z

Re II 227.525

I

227.519 1z

Re II 227.525 I

I

227.419 12

z

W

II 224.875

Ag II 224.874 224.83

I?

II 224.769 17.

162

E.

MICHAUD

and J.M.

MERMET

Table cont.

II

224.691

Cu II 224.700 R

I

221.406 2

Pb I

II

221.095 12 1

?

II

220.905 I

z

II

220.842 12

224.688 n

Ag II 224.641 11

224.550

1

2

II

224.461

1

M

I

224.391

LM

224.322

12

224.315

LM

224.29

l?

II

Pt 11 224.552 I

221.05

z

Re II 221.426 n Si I

221.089 x

Al I

221,006

Sb I

220.845 x

Si 220.798 220.801 12 Y

II 224.306 H

II

220.615 12

Yr II 224.268

II

220.159 12

Y

II 224.306 e

I

220.072 2

z

Yr II 224.268 n

I

220.039 2

2

224.143

12

I

219.604 3

2

Ta II 219.603 n

224.063

LM

I

219.184 3

2

Cu II 219.226

II

224.034

LM

I

219.120 12

II

223.905

17.

Ta

223.781

l??

Tl I

223.782 I

I

218.918 12

223.75

I?

Tl I

223.782 )t

II

218.768 12

II 223.948

219.077 17.

w

218.935

Sb I

217.581

Be I

217.510

Be I

217.499

Be I

217.510

Be I

217.499 w

223.668

1 r

I

218.719 3

223.631

12

I

218.689 12

II

223.391

2 F

I

218.648 3

II

223.208

1 r

II

218.398 12

II

223.151

12

I

217.809 4

I

223.121

12

II

222.876

12

I

222.817

12

Bi I

222.825

11

222.762

). P OS I

222.798

Cu I

222.778 n

II

222.741

1E

Cu I

222.778

II

222.446

1r

Yb II 222.446 w

II

222.349

It

Ni II 217.467 w

I

222.276

12

Pt I

II

222.249

lb

11

222.116

1 r

II

222.039

2

II

221.989

12

II

221.829

12

cu 11 221.810 w

II

221.706

1P

Si I

221.550

1

II

221.509

12

11

221.441

lt+

II

Pd .I 223.159 R

2

2

2

I,IL217.684 17. 217.640 1 M II

II

II

217.545 3

2

217.485 12

217.372 12

I,II217.321 12

2

II

217.299 12

11

217.268 12

I

217.130 2

221.667

?

217.054 12 II II

cu I 221.458 n Re II 221.426

216.995 12 216.892 12 216.838 12

II

216.788 12

2

217.467 n

Iron spectrum

in the 20&300

nm range

163

Table cont.

II

216.740

1

2

II

216.677

4

2

w

II

216.632

I

216.585

2

2

w

11

216.632

Ni

11 216.556

I,II

_

gn

214.147

1

2

214.09

1

?

213.97c

2

2

216.456

2

2

II

216.434

2

2

I

213.859

1

2

I

216.386

1

Z

II

213,773

1

2

&II

216.337

1

Z

II

213.652

1

2

II

216.202

3

Z

213.596

1

2

I,P

216.158

1

Z

II

216.116

1

Z

I

215.989

1

Z

11

213.399

1

z

I

215.965

1

Z

II

213.202

2

z

I

215.892

1

M

II

213.096

1

2

I,lt

215.848

1

2

Ir

I

215.805

II

213.055

1

z

I

215.779

2

2

Ir

I

215.805

II

213.026

1

z

II

215.647

1

Z

212.797

1

z

II

215.584

1

Z

212.501

1

z

212.47

1

?

II

215.50

1

?

I

215.446

1

Z

P

I

215.408

I

215.300

1

Z

P

I

215.294

Sr

II

II

215.249

1

Z

215.224

1

Z

215.170

1

Z

II

215.284

II

211.905

1

z

*

II

211.819

1

z

x

11

211.696

1

z

Ir

II

215.268

I

211.517

1

z

P

I

215.294

I

211.459

1

z

Sr

II

215.284

I

211.297

1

z

Ir

II

215.268

II

211.072

2

Z

Ir

II

215.268

R

I,lI

211.023

1

z

I

210.986

1

z

I

210.896

2

z

1,lI

215.110

2

Z

II

215.062

2

Z

I

215.018

1

Z

II

214.850

1

z

II

214.772

1

z

Te I

214.725

I$

210.814

1

z

II

214.704

1

z

Te I

214.725

II

210.755

1

z

214.671

1

M

210.713

1

M

II

214.606

1

z

I

210.626

2

z

II

214.519

1

z

Sb I

214.486

I

210.305

1

z

214.445

1

z

Sb I

214.486

I

210.235

2

z

Cd 11

214.438

I

210.080

2

z

Pt

II

214.423

I

210.014

1

z

Cd II

214.438

209.96

1

?

Pt

214.423

209.895

1

2

214.390

1

z

II

n

I

v

II

214.009

Sb I

213.969

n

Zn I

213.856

x

P

I

213.618

P

I

213.618

Cu II

213.598

P

I

213.547

Bi

I

213.363

Yb II

211.667

Ru II

211.068

Bi

211.026

I

Au II I

211.026

Bi

I

211.026

Nb II

210.942

Nb II

210.942

Pt I

210.333

II

n

211.068

Bi

W

x

209.860

n

164

E. MICHAUD and J. M. MERMET

I

209.808

1

II

209.751

1z

II

209.699

1N

II

209.498

1N

II

209.464

1N

II

209.368

I

209.366

3

z

Sb I

209.841

II 202.918 12 II 202.779 202.55

i

w

II 209.475

w

II 209.475

12

1 ?

II 202.074 2 *

201.99

l?

II 201.877 2

z 2

2

MO II 202.030 z

II 201.785 1N

I

209.086 12

LIc 201.709

I

209.038

12

I

208.97

l?

II 201.609 1z

208.90

l?

1 z

201.651 1 z

II 201.550 2

I,JI 208.752 3

2

II 201.327 1z

I

208.412 3

2

II 201.069 2

II

208.091 2

2

II

207.816

1z

II 200.742 1z

II

207.751

1 2

II 200.701 12

2

II 200.771 12

7.

W

207.568 1

II

207.419

12

200.45

1 ?

II

207.315

12

200.30

l?

1 ?

I

II

207.182

12

200.15

207.033

12

II 200.037 2

II

'206.995 1z 206.792

12

206.600

IZ

II

206.367 2 206.20

2

l?

si I

I

205.810

1N

II

205.733

2

z

II

205.527

2

2

II

205.103

3

2

II

204.849

12

204.75

l?

204.724

L

N

204.36

1

?

204.32

1

?

204.069

3

2

203.95

1 ?

203.643

!

203.58

l?

II

203.446

LN

II

203.241

3

I

II

II

2

z

205.813

II 200.807

200.626 12

II

II

MO II 201.511

2

II

II

MO II 202.030

z

As I

200.334

Au I

200.081