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Pall launches ultra-high purity gas filter
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Whatman expands Micro-Centrifuge filter range W h a t m a n I n t e r n a t i o n a l h a s e x p a n d e d the a p p l i c a b i l i t y of ils r a n g e ol M i c r o - C e n t r i f u g e T u b e Filters with t h r e e n e w addition,~;. O n e u s e s a 10 gm p o l y p r o p y l e n e m e s h . the other two u s e A n o p o r e P l u s m e m b r a n e s with 0.2 pm ~md 0.02 ~4m pore sizes. All W h a t m a n M i c r o - C e n t r i f u g e T u b e Filters c o n s i s t of a 2 ml m i c r o - c e n t r i f u g e t u b e with r e - s e a l a b l e cap, i n s i d e w h i c h is a filtering l n s e r l . The insert i n c o r p o r a t e s a choice of filter m e m b r a n e , a n d it is into t h i s t h a t the s a m p l e is placed - - u p to 400 !d, The e n t i r e a s s e m b l y is t h e n s p u n in a m i c r o - c e n t r i f u g e at u p to 10 0 0 0 g. The centrifllgal Iorce t r a s h e s the s a m p l e t h r o u g h the filter. A n o p o r e Plus differ from s t a n d a r d v e r s i o n s of the A n o p o r e M i c r o - C e n t r i f u g e T u b e Filters by h a v i n g a n a d d i t i o n a l GI='/ F prefilter. This i n c r e a s e s l o a d i n g c a p a c i t y for high d e b r i s s a m p l e s . Moreover m a n y s a m p l e s c a n be filtered easily at lower v a l u e s of g t h a n w i t h o u t the prefflter. U s e s for W h a t m a n M i c r o - C e n t r i f u g e T u b e Filters are diverse. A n o p o r e 0.2 gm (sterile version) is u s e d in the sterilization of p r o t e i n s for t i s s u e c u l t u r e s ; ultrafiltratiolL m e m b r a n e v e r s i o n s are u s e d to filter p r o t e i n s prior to PAGE; GC, HPLC a n d capillary e l e c t r o p h o r e s i s s a m p l e p r e p a r a t i o n all u s e 0.2 ~m-L Anoporc; r e m o v a l of m i c r o s p h e r e s in a q u e o u s s o l u t i o n s also u s e 0.2 ~m Anopore. W h a t m a n M i c r o - C e n t r i f u g e T u b e Filters are a w d l a b l e in i~acks of 25 or 100 u n i t s . For furth~,~r information contact: W h a t m a t l Interrmtionol Ltd. W h a t m a n House, St Leonard',s Road, 2 0 / 2 0 Maidstone, Kent ME16 OLS. UK. Tel: 0 1 6 2 2 6 7 6 6 7 0 ; f a x : 0 1 6 2 2 6 7 7 0 1 1 .
Pall l a u n c h e s ultra-high purity gas filter Available from Pall Ultrafine F i l t r a t i o n C o m p a n y ' s Microelectronics Filter G r o u p is the Hi-Flow M i n i - G a s k l e e n filter a s s e m b l y w h i c h is d e s i g n e d to remove s u b m i c r o n p a r t i c l e s (aO.O03 pm) from u l t r a - h i g h p u r i t y p o i n t - o f - u s e g a s filtration a p p l i c a t i o n s . The filter d e s i g n allows a s i g n i f i c a n t l y higher flow c a p a c i t y t h a n p r e v i o u s l y offered before i n this envelope, s a y s the c o m p a n y . The filter a s s e m b l y h a s a d i a m e t e r of 25 m m w h i c h i n a k e s it e a s y to install. It is 100 % integrity a n d h e l i u m leak tested, a n d c o n t a i n s a f l u o r o c a r b o n e l e m e n t , w h i c h is c o n s t r u c t e d of a F I F E m e d i u m , a n d a PFA 4 4 0 t t P g r a d e Teflon core. The 316L h o u s i n g , c o n s t r u c t e d of e l e c t r o p o l i s h e d s t a i n l e s s steel, exceeds VIM/VAR specifications, a n d the O - r i n g c o n s i s t s of Teflon e n c a p s u l a t e d Viton. It is m a n u f a c t u r e d a n d p a c k a g e d in a cleanroom environment. The M i n i - G a s k l e e n filter a s s e m b l y is offered i n a wide variety of fitting o p t i o n s i n c l u d i n g a 0.25" (6 ram) gasket seal (VCR compatible), a n d 0.25" (6 ram) b u t t weld. Pall Ultrafine F i l t r a t i o n C o m p a n y h a s also t m b l i s h e d a b r o c h u r e o n its Mini-I)MF d y n a m i c m e l n b r a n e filter s y s t e m for the b i o - p h a r m a c e u t i c a l i n d u s t l ) , . Easy-to-follow t a b l e s a n d s a h e m a t i c s are u s e d to p r e s e n t the M i n i - D M F s y s t e m w h i c h ls d e s i g n e d for s m a l l v o t m n e p r o c e s s i n g i n the laboratory, p r o c e s s d e v e l o p m e n t or pilt~t a n d s m a l l lot p r o d u c t i o n . The b r o c h u r e p r e s e n t s criteria for the selection of | h e m o s t s u i t a b l e s y s t e m for speclfic a p p l i c a t i o n s , a n d is a n effective tool to i l l u s t r a t e its a d v a n t a g e s . For f u r t h e r information contact: Pall Ultraflne Filtratioo Company, 25 Harbor Park Drwe, Port Washing(oft. NY, 11050, USA. Tel: +i 5 1 6 484 3600; f a x : +1 5 1 6 484 3 6 3 7
Membrane t e c h n o l o g y on show
W h a t m a n Interrmtional has e x p a n d e d the applicability of its range of Micro-Centrifuge Tube Filters with ttwee r~erv additlor~s.
M e n l b r a n e Y e c h n o l o g y No. 6 2
E n v i r o i u n e n t a l T e c h n o l o g y '95 anti E u r o c h e m '95, were held at tile NEC in B i r m i n g h a m , UK, o n 6 to 8 J u n c . Boih e x h i b i t i o n s provided c o m p a n i e s with the o p p o r t u n i t y to p r o m o t e m e m b r a n e t e c h n o l o g i e s a n d their api)lications. Ros V i n c e n t p a i d a visit to the NEC a n d compiled this report for Membrc~ne Technology. ET '95 h a s u n d e r g o n e a d r a m a t i c e x p a n s i o n s i n c e il was firs( held in 1990. The increa~e, both In
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Whatman expands Micro-Centrifuge filter range W h a t m a n I n t e r n a t i o n a l h a s e x p a n d e d the a p p l i c a b i l i t y of ils r a n g e ol M i c r o - C e n t r i f u g e T u b e Filters with t h r e e n e w addition,~;. O n e u s e s a 10 gm p o l y p r o p y l e n e m e s h . the other two u s e A n o p o r e P l u s m e m b r a n e s with 0.2 pm ~md 0.02 ~4m pore sizes. All W h a t m a n M i c r o - C e n t r i f u g e T u b e Filters c o n s i s t of a 2 ml m i c r o - c e n t r i f u g e t u b e with r e - s e a l a b l e cap, i n s i d e w h i c h is a filtering l n s e r l . The insert i n c o r p o r a t e s a choice of filter m e m b r a n e , a n d it is into t h i s t h a t the s a m p l e is placed - - u p to 400 !d, The e n t i r e a s s e m b l y is t h e n s p u n in a m i c r o - c e n t r i f u g e at u p to 10 0 0 0 g. The centrifllgal Iorce t r a s h e s the s a m p l e t h r o u g h the filter. A n o p o r e Plus differ from s t a n d a r d v e r s i o n s of the A n o p o r e M i c r o - C e n t r i f u g e T u b e Filters by h a v i n g a n a d d i t i o n a l GI='/ F prefilter. This i n c r e a s e s l o a d i n g c a p a c i t y for high d e b r i s s a m p l e s . Moreover m a n y s a m p l e s c a n be filtered easily at lower v a l u e s of g t h a n w i t h o u t the prefflter. U s e s for W h a t m a n M i c r o - C e n t r i f u g e T u b e Filters are diverse. A n o p o r e 0.2 gm (sterile version) is u s e d in the sterilization of p r o t e i n s for t i s s u e c u l t u r e s ; ultrafiltratiolL m e m b r a n e v e r s i o n s are u s e d to filter p r o t e i n s prior to PAGE; GC, HPLC a n d capillary e l e c t r o p h o r e s i s s a m p l e p r e p a r a t i o n all u s e 0.2 ~m-L Anoporc; r e m o v a l of m i c r o s p h e r e s in a q u e o u s s o l u t i o n s also u s e 0.2 ~m Anopore. W h a t m a n M i c r o - C e n t r i f u g e T u b e Filters are a w d l a b l e in i~acks of 25 or 100 u n i t s . For furth~,~r information contact: W h a t m a t l Interrmtionol Ltd. W h a t m a n House, St Leonard',s Road, 2 0 / 2 0 Maidstone, Kent ME16 OLS. UK. Tel: 0 1 6 2 2 6 7 6 6 7 0 ; f a x : 0 1 6 2 2 6 7 7 0 1 1 .
Pall l a u n c h e s ultra-high purity gas filter Available from Pall Ultrafine F i l t r a t i o n C o m p a n y ' s Microelectronics Filter G r o u p is the Hi-Flow M i n i - G a s k l e e n filter a s s e m b l y w h i c h is d e s i g n e d to remove s u b m i c r o n p a r t i c l e s (aO.O03 pm) from u l t r a - h i g h p u r i t y p o i n t - o f - u s e g a s filtration a p p l i c a t i o n s . The filter d e s i g n allows a s i g n i f i c a n t l y higher flow c a p a c i t y t h a n p r e v i o u s l y offered before i n this envelope, s a y s the c o m p a n y . The filter a s s e m b l y h a s a d i a m e t e r of 25 m m w h i c h i n a k e s it e a s y to install. It is 100 % integrity a n d h e l i u m leak tested, a n d c o n t a i n s a f l u o r o c a r b o n e l e m e n t , w h i c h is c o n s t r u c t e d of a F I F E m e d i u m , a n d a PFA 4 4 0 t t P g r a d e Teflon core. The 316L h o u s i n g , c o n s t r u c t e d of e l e c t r o p o l i s h e d s t a i n l e s s steel, exceeds VIM/VAR specifications, a n d the O - r i n g c o n s i s t s of Teflon e n c a p s u l a t e d Viton. It is m a n u f a c t u r e d a n d p a c k a g e d in a cleanroom environment. The M i n i - G a s k l e e n filter a s s e m b l y is offered i n a wide variety of fitting o p t i o n s i n c l u d i n g a 0.25" (6 ram) gasket seal (VCR compatible), a n d 0.25" (6 ram) b u t t weld. Pall Ultrafine F i l t r a t i o n C o m p a n y h a s also t m b l i s h e d a b r o c h u r e o n its Mini-I)MF d y n a m i c m e l n b r a n e filter s y s t e m for the b i o - p h a r m a c e u t i c a l i n d u s t l ) , . Easy-to-follow t a b l e s a n d s a h e m a t i c s are u s e d to p r e s e n t the M i n i - D M F s y s t e m w h i c h ls d e s i g n e d for s m a l l v o t m n e p r o c e s s i n g i n the laboratory, p r o c e s s d e v e l o p m e n t or pilt~t a n d s m a l l lot p r o d u c t i o n . The b r o c h u r e p r e s e n t s criteria for the selection of | h e m o s t s u i t a b l e s y s t e m for speclfic a p p l i c a t i o n s , a n d is a n effective tool to i l l u s t r a t e its a d v a n t a g e s . For f u r t h e r information contact: Pall Ultraflne Filtratioo Company, 25 Harbor Park Drwe, Port Washing(oft. NY, 11050, USA. Tel: +i 5 1 6 484 3600; f a x : +1 5 1 6 484 3 6 3 7
Membrane t e c h n o l o g y on show
W h a t m a n Interrmtional has e x p a n d e d the applicability of its range of Micro-Centrifuge Tube Filters with ttwee r~erv additlor~s.
M e n l b r a n e Y e c h n o l o g y No. 6 2
E n v i r o i u n e n t a l T e c h n o l o g y '95 anti E u r o c h e m '95, were held at tile NEC in B i r m i n g h a m , UK, o n 6 to 8 J u n c . Boih e x h i b i t i o n s provided c o m p a n i e s with the o p p o r t u n i t y to p r o m o t e m e m b r a n e t e c h n o l o g i e s a n d their api)lications. Ros V i n c e n t p a i d a visit to the NEC a n d compiled this report for Membrc~ne Technology. ET '95 h a s u n d e r g o n e a d r a m a t i c e x p a n s i o n s i n c e il was firs( held in 1990. The increa~e, both In
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