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New Products
SIREX Buenos Aires, Argentina P h o n e : 42-1927 or 44-5781 J O H N M O R R I S PTY. L T D . C h a t s w o o d , Australia Phone: 40-0206 E T A B L . R. A N K E R S M I T Brussels, Belgium Phone: 027-62017
LTD.
THECNOGLASS S a o P a u l o , Brazil P h o n e : 279-3239 TORSION BALANCE COMPANY W i n d s o r , B e r k s h i r e , England P h o n e : W i n d s o r 69218 B U R E A U DE L I A I S O N P a r i s , France P h o n e : 468 9920 MESSTEC, GMBH H a m b u r g , Germany Phone: 880-2011 P. B A C A C O S S.A. Athens, Greece P h o n e : 532631
Spectroflow Monitor S F 770 spectroflow monitor is a high a n d low-pressure liquid c h r o m a t o g r a p h y detector system t h a t can be a t t a c h e d to LC i n s t r u m e n t s . It offers a continuously variable choice of wavelength. T h e i n s t r u m e n t incorporates a chopped d u a l - b e a m system a n d special power supplies to give a stability of better t h a n 0.001 absorbance u n i t . Noise is typically 0.0002 absorbance. $3600. Schoeffel I n s t r u m e n t 401
IR Analyzer Model 865 nondispersive infrared analyzer for continuous s t r e a m analysis in process operations, vehicle emission, a n d lab applications features 1% of full-scale accuracy a n d selectable speed response of 90% in 0.5-2.5 sec. T h e i n s t r u m e n t meets O S H A stand a r d s a n d can be o p e r a t e d in hazardous locations. B e c k m a n I n s t r u m e n t s Inc. 413
t.
Model 260 abridged spectrophotometer with specific wavelength settings can be used for over 60 different tests including heavy m e t a l s such as lead, copper, c h r o m i u m , silver, c a d m i u m , etc. T h e i n s t r u m e n t is precalibrated and provided with p h o t o m e t e r cells to ensure m e a s u r i n g accuracy better t h a n 1%. Delta Scientific Corp. 414
Monochromator Surface Area A new analyzer for t h e rapid determination of surface area in solid materials operates according to B E T principle by m e a s u r i n g the volume of adsorbed gas necessary for t h e monomolecular layer. D a t a r e a d o u t is provided directly in square m e t e r s in 15 m i n . Reproducibility is ± 2 % , accuracy, ± 5 % . Carlo E r b a S.p.A., Scientific I n s t r u m e n t s Div., P . O . Box 4342,1 20100 Milan, Italy
L A N D S E A S (ISRAEL) LTD. Tel A v i v , Israel P h o n e : 247291-4
GIBERTINI Milano, Italy Phone: 371.677-375.745 COLUMBIA IMPORT & CO. LTD. T o k y o , Japan Phone: 291-06418
EXPORT
ANKERSMIT NEDERLAND A p e l d o o r n , Nederland
N.V.
P R O M E D , S.A. Republic of P a n a m a P h o n e : 23-8654 SCANDVAC AB S w e d e n (for Russia) P h o n e : 0 3 1 - 2 6 22 7 0
Metal Analyzer
-.
M A R T I N & HARRIS (PRIVATE) LTD. B o m b a y , India Phone: 263473
Series T H R m o n o c h r o m a t o r uses an advanced plane holographic diffraction grating to provide exceptional resolution levels. Resolution exceeding 300,000 can be achieved in double passage. T h e i n s t r u m e n t operates over a spectral range of 180-800 m, isomg p m e 2000 g / m m holographic grating. W h e n used in conjunction with a F a b r y - P e r o t interferometer, resolution of over 50,000,000 a t 632.8 n m can be obtained. $19,700. J-Y Optical Systems 415
E. N I L S S O N I N S T R U M E N T Solna, Sweden Phone: 08-830600
AB
CAHN/EUROPE Geneve, Switzerland P h o n e : 0 2 2 55 4 3 59 T E C H N I C A N U C L E A R DE V E N E Z U E L A , C.A. Caracas, Venezuela Phone: 543956 - 559396 For a d d i t i o n a l i n f o r m a t i o n o n c o u n t r i e s not l i s t e d , in E u r o p e c o n t a c t : Mr. C h r i s F l u r y 56, C h e m i n d e M o n t f l e u r y Ch-1290 Versoix Geneve, Switzerland
Phone: 022 55 43 59 For n a m e s of R e p r e s e n t a t i v e s i n o t h e r p a r t s of t h e w o r l d c o n t a c t : CAHN INSTRUMENTS 7500 Jefferson Street Paramount, California 90723 Phone: 213/634-7840
CAHN
CIRCLE 48 O N READER SERVICE CARD 934 A ·
ANALYTICAL
CHEMISTRY,
VOL. 45, NO. 1 1 , SEPTEMBER
1973
