Announcing
NEW PRODUCTS
. ..
7 k t Λ/eaz (TIISCO CR-1 SPECTROLATOR"
F0R
CONTINUOUS-FLOW ELECTROCHROMATOGRAPHY THAT'S FAST, EASY, EFFICIENT, ACCURATE
THE CR-1 IS A RESEARCH NECESSITY FOR C O N T I N U O U S
SEPARATION-
SF-1 Fluorispec fluorescence spec trophotometer has two double monochromators which may be scanned au tomatically or manually, covering both the excitation and fluorescent spectra from 220 to 700 m^. There are three spectra slit widths, 2, 8, and 32 m/x available in four locations. Resolu tion is 2 π\μ with smallest slit widths. Optional accessories include a 4-position turret sampler, chromatograph scanner, microsampler, and X-Y re corder. Baird-Atomic, Inc., 33 Uni versity Rd., Cambridge 38, Mass. 420
ELECTRO PHORESIS
PURIFICATION AND COLLECTION
Monochromators UNIQUE FEATURES OF THE C R - ] • I n c r e a s e d power for g r e a t e r r e s o l u tion in s e p a r a t i o n s . 3, 000 ν a t 200 m a providing r e l i a b l e and p r e c i s e t e m p e r a t u r e , voltage and a m p e r a g e control. • I n t e g r a t e d r e f r i g e r a t i o n s y s t e m (an engineering advance in itself) with a u t o m a t i c defrost, invaluable for long, continuous r u n s . • 27 to 54 fraction collection p o i n t s . • Reliable and constant control of e l e c t r o c h e m i c a l h e a t t r a n s f e r and e l e c tronically related equilibria. • Resolution and p u r e fractions 50% to 100% g r e a t e r than any p r e v i o u s l y a t tainable. • A c c u r a t e c o n t r o l of buffer flow r a t e s , MISCO, a pioneer in e l e c t r o c h r o m a t o graphy i n s t r u m e n t a t i o n offers a powerful r e s e a r c h tool utilizing a v e r t i c a l p a p e r c u r t a i n for the a n a l y s i s , s e p a r a t i o n and purification of complex entities a s t o x oids, v i t a m i n s , h o r m o n e s , purified i n j e c t a b l e s , RNA, DNA and v i r a l c o m p o n e n t s in virology and genetic r e s e a r c h . If you have a s p e c i a l s e p a r a t i o n o r p u r i fication p r o b l e m in.any of t h e s e or r e l a t e d fields, w r i t e u s .
MICROCHEMICAL SPECIALTIES CO. 1825
E A S T S H O R E
H I G H W A Y
B E R K E L E Y 10, C A L I F O R N I A Circle No. 60 on Readers' Service Card
A building-block concept is the out standing feature of new grating mono chromators and monochromator sys tems now available. System compo nents may be added as desired to per mit many spectroscopic applications including absorption, spectrophotom etry, phosphorimetry, fluorometry, spectrophotofluorometry, and spectrophosphorimetry. The basic system consists of a grating monochromator ( offered with manual or motor driven scanning devices), a slit mechanism, and an optical bench. A series of com ponents may be added to this basic system to meet individual require ments. The instrument is suitable for use in the ultraviolet, visible, and near infrared regions of the spectrum (up to 1200 m^), and is especially well suited for the analysis of low-level luminescence. American Instrument Co., Inc., 8030 Georgia Ave., Silver Spring, Md. 421
Your paper requirements for electrophoresis apparatus now available from one source
STRIPS cp ι tr-l
(Whatman #1) 200 strips per box (Whatman #2) C D 0 tr-Λ 200 strips per box CD 1Q (Whatman #3MM) tr- I O 200 strips per box C D O/l (Whatman DEAE Paper) tr-^4 100 strips per box
WICKS EP-14
Gas Chromatograph Accessories The high speed electronic integrator Model 72 has been developed for use with Carlo Erba S. p. A. gas chromatographs. The device automatically measures and records the areas of the chromâtogram peaks. In addition, the company has announced the development of an electron capture detector for its instruments. Carlo Erba S. p. Α., Divisione Apparecchi Scientifici, Via Imbonati 24, Milan, Italy. 422
A fast, smooth, even "wicking" absorbent paper. 50 wicks per box.
BLOTTERS EP-15
A smooth, high absorbent sheet for fast blotting action. 25 blotters per box. Available from y o u r Laboratory Supply D e a l e r or t h r o u g h Scientifica Division
reeve angel 9 Bridewell Place,Clifton,NJ.
F o r m o r e i n f o r m a t i o n w r i t e : Dept. E P Circle No. 77 on Readers' Service Card VOL. 36, NO. 8, JULY 1964
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