- Email: [email protected]
Ammonia ion selective electrode launched
NEWS
Editorial Office: Elsevier Ltd The Boulevard, Langford Lane Kidlington, Oxford OX5 1GB, UK Tel: +44 (0)1865 843239, Fax: +44 (0)1865 843971 E-mail: [email protected] Web: www.membrane-technology.com Programme Editor: Steve Barrett Editor: Simon Atkinson Tel/Fax: +44 (0)1904 630505 Email: [email protected] Production Editor: Alan Stubley Editorial advisory board: Dr P Ball (Pall Europe), Dr D Bessarabov (Ballard Power Systems), Prof. M Cheryan (University of Illinois at UrbanaChampaign), Prof. A G Fane (University of New South Wales), Dr A C M Franken (Membrane Application Centre Twente), Prof. E Gobina (Robert Gordon University), Dr A Merry (Aquious–PCI Membranes), Prof. M Nyström (Lappeenranta University of Technology), Dr G K Pearce (Membrane Consultancy Associates), Prof. P H Pfromm (Kansas State University), Dr R W Philpott (Acumen Bioscience Ltd), Prof. R J Wakeman (Loughborough University of Technology), Prof. A Yaroshchuk (Ukrainian Membrane Society)
Subscription Information An annual subscription to Membrane Technology includes 12 printed issues and online access for up to 5 users. Prices: 1049 for all European countries & Iran US$1176 for all countries except Europe and Japan ¥139 400 for Japan (Prices valid until 31 December 2008) To subscribe send payment to the address above. Tel: +44 (0)1865 843687/Fax: +44 (0)1865 834971 E-mail: [email protected], or via www.membrane-technology.com. Subscriptions run for 12 months, from the date payment is received. Periodicals postage is paid at Rahway, NJ 07065, USA. Postmaster send all USA address corrections to: Membrane Technology, 365 Blair Road, Avenel, NJ 07001, USA Permissions may be sought directly from Elsevier Global Rights Department, PO Box 800, Oxford OX5 1DX, UK; phone: +44 1865 843830, fax: +44 1865 853333, e-mail: [email protected]. You may also contact Global Rights directly through Elsevier’s home page (www.elsevier.com), selecting first ‘Support & contact’, then ‘Copyright & permission’. In the USA, users may clear permissions and make payments through the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, USA; phone: +1 978 750 8400, fax: +1 978 750 4744, and in the UK through the Copyright Licensing Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, London W1P 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 7631 5500. Other countries may have a local reprographic rights agency for payments. Derivative Works Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the Publisher is required for resale or distribution outside the institution. Permission of the Publisher is required for all other derivative works, including compilations and translations. Electronic Storage or Usage Permission of the Publisher is required to store or use electronically any material contained in this journal, including any article or part of an article. Except as outlined above, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the Publisher. Address permissions requests to: Elsevier Science Global Rights Department, at the mail, fax and e-mail addresses noted above. Notice No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses and drug dosages should be made.Although all advertising material is expected to conform to ethical (medical) standards, inclusion in this publication does not constitute a guarantee or endorsement of the quality or value of such product or of the claims made of it by its manufacturer.
02095 Printed by Mayfield Press (Oxford) Limited.
2
Membrane Technology
Membrana commercialises membrane contactors
M
embrana has announced that it has completed the commercialisation process of its MicroModule membrane contactors. According to the company, these modules represent the smallest degassing devices in the Liqui-Cel product line. They are ideal for in-line degassing and de-bubbling in many applications that have low liquid flow-rates. The modules use a design that packs a tremendous amount of membrane area into a small device that can be placed anywhere in a system, and a large membrane area translates into more efficient degassing, says Membrana. The smaller of the two commercialised MicroModules is a square device that is capable of processing fluids at up to 30 ml/ min. There are two membrane options for this module and depending on which type is used, the device can de-bubble water used in laboratories and analytical systems or take bubbles out of low surface-tension fluids such as inkjet printing inks, oils and other coatings. Bubbles in the ink-jet print-head can cause a misfire and imperfections on the final printed surface. By degassing the ink before it passes through the ink-jet print-head, printer speeds can be increased and down time can be minimised, explains the firm. The larger of the two devices, a round module, is best suited to de-bubbling water at flow rates up to 200 ml/min. This membrane degassing unit improves many processes by removing bubbles and dissolved gases from water used in laboratories, and analytical and biotechnology equipment. Bubbles can be mistaken for (and measured as) particles by particle counters, and removing them improves the accuracy of the measurements taken by analytical instruments. MicroModule, MiniModule, SuperPhobic and Liqui-Cel membrane contactors are used around the world to add or remove, oxygen, carbon dioxide and nitrogen to, or from, different liquids that are used in the semiconductor, power, pharmaceutical, photographic, food and beverage, and many other industries, says the company. For example, it is known that oxygen has a negative effect on many processes because it is corrosive and can oxidise materials. In the power and other industrial areas, piping and equipment are susceptible to corrosion. For the production of semiconductors, high levels of oxygen can reduce wafer yields.
Additionally, carbon dioxide negatively affects the performance of ion-exchange processes and electro-deionisation. The Liqui-Cel contactors offer a modular system for removing oxygen or carbon dioxide, without using chemicals, before these processes are applied. Contacts: Membrana-Charlotte, 13800 South Lakes Drive, Charlotte, NC 28273, USA. Tel: +1 704 587 8409, www.polypore.net Membrana GmbH, Öhder Strasse 28, 42289 Wuppertal, Germany. Tel: +49 202 60990, www.membrana.com
Ammonia ion selective electrode launched
T
hermo Fisher Scientific Incorporated of Waltham, Massachusetts, USA, has released its latest high performance ammonia ion selective electrode. The company says that compared with the existing product, Orion offers design changes which provide a linear response at lower limits of detection (with accurate, repeatable readings down to 0.01 ppm), a faster response time and increased durability. It is also easy to maintain – a ‘keying feature’ ensures the electrode fits securely and prevents the membrane from twisting or breaking during assembly. The pre-assembled outer body with membrane cap makes the device easy to use and guarantees the accuracy of a stretched membrane. The new translucent body also has a fill-line to prevent overfilling. The Orion ammonia ion selective electrode is available with a BNC water-proof connector. It uses a new ammonia fill solution and the package includes a box of 20 loose membranes. Preassembled membranes are sold in packs of three. The device is targeted at drinking-water and wastewater analysis laboratories. Contact: Thermo Fisher Scientific Incorporated, 81 Wyman Street, Waltham, MA 02454-9046, USA. Tel: +1-781-622-1000, www.thermo.com/water, www.thermofisher.com
Filtration system uses Siemens’ membranes
U
S-based Siemens Water Technologies is working with the SkyJuice Foundation of Sydney, Australia, to provide a reliable source
February 2008
Editorial Office: Elsevier Ltd The Boulevard, Langford Lane Kidlington, Oxford OX5 1GB, UK Tel: +44 (0)1865 843239, Fax: +44 (0)1865 843971 E-mail: [email protected] Web: www.membrane-technology.com Programme Editor: Steve Barrett Editor: Simon Atkinson Tel/Fax: +44 (0)1904 630505 Email: [email protected] Production Editor: Alan Stubley Editorial advisory board: Dr P Ball (Pall Europe), Dr D Bessarabov (Ballard Power Systems), Prof. M Cheryan (University of Illinois at UrbanaChampaign), Prof. A G Fane (University of New South Wales), Dr A C M Franken (Membrane Application Centre Twente), Prof. E Gobina (Robert Gordon University), Dr A Merry (Aquious–PCI Membranes), Prof. M Nyström (Lappeenranta University of Technology), Dr G K Pearce (Membrane Consultancy Associates), Prof. P H Pfromm (Kansas State University), Dr R W Philpott (Acumen Bioscience Ltd), Prof. R J Wakeman (Loughborough University of Technology), Prof. A Yaroshchuk (Ukrainian Membrane Society)
Subscription Information An annual subscription to Membrane Technology includes 12 printed issues and online access for up to 5 users. Prices: 1049 for all European countries & Iran US$1176 for all countries except Europe and Japan ¥139 400 for Japan (Prices valid until 31 December 2008) To subscribe send payment to the address above. Tel: +44 (0)1865 843687/Fax: +44 (0)1865 834971 E-mail: [email protected], or via www.membrane-technology.com. Subscriptions run for 12 months, from the date payment is received. Periodicals postage is paid at Rahway, NJ 07065, USA. Postmaster send all USA address corrections to: Membrane Technology, 365 Blair Road, Avenel, NJ 07001, USA Permissions may be sought directly from Elsevier Global Rights Department, PO Box 800, Oxford OX5 1DX, UK; phone: +44 1865 843830, fax: +44 1865 853333, e-mail: [email protected]. You may also contact Global Rights directly through Elsevier’s home page (www.elsevier.com), selecting first ‘Support & contact’, then ‘Copyright & permission’. In the USA, users may clear permissions and make payments through the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, USA; phone: +1 978 750 8400, fax: +1 978 750 4744, and in the UK through the Copyright Licensing Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, London W1P 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 7631 5500. Other countries may have a local reprographic rights agency for payments. Derivative Works Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the Publisher is required for resale or distribution outside the institution. Permission of the Publisher is required for all other derivative works, including compilations and translations. Electronic Storage or Usage Permission of the Publisher is required to store or use electronically any material contained in this journal, including any article or part of an article. Except as outlined above, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the Publisher. Address permissions requests to: Elsevier Science Global Rights Department, at the mail, fax and e-mail addresses noted above. Notice No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses and drug dosages should be made.Although all advertising material is expected to conform to ethical (medical) standards, inclusion in this publication does not constitute a guarantee or endorsement of the quality or value of such product or of the claims made of it by its manufacturer.
02095 Printed by Mayfield Press (Oxford) Limited.
2
Membrane Technology
Membrana commercialises membrane contactors
M
embrana has announced that it has completed the commercialisation process of its MicroModule membrane contactors. According to the company, these modules represent the smallest degassing devices in the Liqui-Cel product line. They are ideal for in-line degassing and de-bubbling in many applications that have low liquid flow-rates. The modules use a design that packs a tremendous amount of membrane area into a small device that can be placed anywhere in a system, and a large membrane area translates into more efficient degassing, says Membrana. The smaller of the two commercialised MicroModules is a square device that is capable of processing fluids at up to 30 ml/ min. There are two membrane options for this module and depending on which type is used, the device can de-bubble water used in laboratories and analytical systems or take bubbles out of low surface-tension fluids such as inkjet printing inks, oils and other coatings. Bubbles in the ink-jet print-head can cause a misfire and imperfections on the final printed surface. By degassing the ink before it passes through the ink-jet print-head, printer speeds can be increased and down time can be minimised, explains the firm. The larger of the two devices, a round module, is best suited to de-bubbling water at flow rates up to 200 ml/min. This membrane degassing unit improves many processes by removing bubbles and dissolved gases from water used in laboratories, and analytical and biotechnology equipment. Bubbles can be mistaken for (and measured as) particles by particle counters, and removing them improves the accuracy of the measurements taken by analytical instruments. MicroModule, MiniModule, SuperPhobic and Liqui-Cel membrane contactors are used around the world to add or remove, oxygen, carbon dioxide and nitrogen to, or from, different liquids that are used in the semiconductor, power, pharmaceutical, photographic, food and beverage, and many other industries, says the company. For example, it is known that oxygen has a negative effect on many processes because it is corrosive and can oxidise materials. In the power and other industrial areas, piping and equipment are susceptible to corrosion. For the production of semiconductors, high levels of oxygen can reduce wafer yields.
Additionally, carbon dioxide negatively affects the performance of ion-exchange processes and electro-deionisation. The Liqui-Cel contactors offer a modular system for removing oxygen or carbon dioxide, without using chemicals, before these processes are applied. Contacts: Membrana-Charlotte, 13800 South Lakes Drive, Charlotte, NC 28273, USA. Tel: +1 704 587 8409, www.polypore.net Membrana GmbH, Öhder Strasse 28, 42289 Wuppertal, Germany. Tel: +49 202 60990, www.membrana.com
Ammonia ion selective electrode launched
T
hermo Fisher Scientific Incorporated of Waltham, Massachusetts, USA, has released its latest high performance ammonia ion selective electrode. The company says that compared with the existing product, Orion offers design changes which provide a linear response at lower limits of detection (with accurate, repeatable readings down to 0.01 ppm), a faster response time and increased durability. It is also easy to maintain – a ‘keying feature’ ensures the electrode fits securely and prevents the membrane from twisting or breaking during assembly. The pre-assembled outer body with membrane cap makes the device easy to use and guarantees the accuracy of a stretched membrane. The new translucent body also has a fill-line to prevent overfilling. The Orion ammonia ion selective electrode is available with a BNC water-proof connector. It uses a new ammonia fill solution and the package includes a box of 20 loose membranes. Preassembled membranes are sold in packs of three. The device is targeted at drinking-water and wastewater analysis laboratories. Contact: Thermo Fisher Scientific Incorporated, 81 Wyman Street, Waltham, MA 02454-9046, USA. Tel: +1-781-622-1000, www.thermo.com/water, www.thermofisher.com
Filtration system uses Siemens’ membranes
U
S-based Siemens Water Technologies is working with the SkyJuice Foundation of Sydney, Australia, to provide a reliable source
February 2008