COLEMAN
NEW! Automated analysis of carbon and hydrogen C o l e m a n ' s n e w C a r b o n - H y d r o g e n Analyzer is fully-automated to b r i n g n e w speed, n e w acc u r a c y , a n d n e w e a s e t o t h e a n a l y s i s of t h e s e elements in organic materials. It p r o g r a m s a n d c o n t r o l s all variables—flow r a t e s , c o m b u s t i o n t i m e s a n d t e m p e r a t u r e s — o f t h e acc e p t e d c o m b u s t i o n m e t h o d for c a r b o n a n d hydrogen determinations. T h i s n e w i n s t r u m e n t is v a l u a b l e i n l a b o r a tories c o n c e r n e d w i t h foods, p h a r m a c e u t i c a l s , petroleum, organic intermediates and similar materials. Outstanding characteristics are: SPEED: C o m p l e t e d e t e r m i n a t i o n w i t h i n a n 8 - m i n u t e o p e r a t i n g cycle; r o u t i n e a n a l y s e s a t t h e r a t e of 4 t o 5 p e r h o u r . ACCURACY: R e s u l t s c o r r e s p o n d t o t h e o r y w i t h i n ± 0.2% c a r b o n a n d ± 0.2% h y d r o g e n . C O N V E N I E N C E : All o p e r a t i o n s p e r f o r m e d automatically—operator calculates results a f t e r d i f f e r e n t i a l w e i g h i n g of a b s o r p t i o n tubes. VERSATILITY: Flexible c o n t r o l s p e r m i t a n y c o m b u s t i o n a n a l y s i s u p t o 1100° C , w i t h s a m ples down to t h e milligram range. E C O N O M Y : P a y s for i t s e l f b y i n c r e a s i n g a n a -
lytical precision a n d o u t p u t . Uses c o m m e r c i a l g r a d e oxygen a n d readily-available r e a g e n t s . T a k e s o n l y 18 i n c h e s o n l a b o r a t o r y b e n c h . ANALYTICAL RANGE Hydrocarbons—paraffins, a r o m a t i c s , n a p h t h e n e s , aviation fuels, low-boiling m a t e rials; Oxygen-containing materials — alcohols, p h e n o l s , glycols, e t h e r s , esters, ketones, aldehydes, acids; Nitrogen-containing materials — amines, a m i d e s , cyanides, cyanates, hydrazines, pyridines, n i t r o c o m p o u n d s ; Sulfur-containing materials—mercaptans, sulfides, disulfides, t h i o p h e n e s ; Halogen-containing materials — alkyl m o n o - a n d dichlorides, alkyl bromides; M i x t u r e s of t h e s e m a t e r i a l s . T h i s i n s t r u m e n t is a n o t h e r F I R S T i n a u t o m a t e d analysis by Coleman. Ask your d e a l e r for m o r e i n f o r m a t i o n or w r i t e for Bulletin AB-272.
Order and simplification are the first step toward mastery of any science COLEMAN
INSTRUMENTS,
INC.,
MAYWOOD,
ILLINOIS
Circle No. 153 on Readers' Service Card VOL. 3 4 , N O . 3, MARCH 1 9 6 2
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