Carl Schleicher & Schuell Co. - ACS Publications - American

This desk-sized chart shows at a glance which filter paper to use for a given analysis. .... "tools" and accessories for the laboratory. Sero-. Utilit...
0 downloads 0 Views 167KB Size
YOURS FREE

NEWS P a p e r Chromatographic Separation of Some M e t a l /S-Diketone C h e l a t e s . E. W. B E B G AND R. T . M C I N T Y B E , L o u i s i a n a S t a t e

University, B a t o n Rouge, La. Infrared Analysis of Isomeric Dicyanob e n z e n e M i x t u r e s by t h e P o t a s s i u m Bromide Disk Technique. NINA L. Y . S A U N D E R S , A N D W. F .

HADDEN, HAMNEK,

M o n s a n t o Chemical Co., Texas City, Tex. Qualitative G a s Chromatographic Analysis Using T w o Columns H a v i n g Different Characteristics.

S&S Membrane Filter Folder Detailed information and simple directions for use of m e m b r a n e filters. T h i s folder describes t h e new S&S " B a c T-Flex"*, flexible m e m b r a n e filter with a larger, green-colored grid designed for easier, m o r e accurate bacteria count.

J . S. L E W I S , H . W . P A T T O N , AND

W . I. K A Y E , Tennessee E a s t m a n Co., Kingsport, Tenn. An Analytical Chemist Looks to Statistics. C. O. W I L L I T S , E a s t e r n Regional Research L a b o r a t o r y , Philadelphia, P a . D e t e r m i n a t i o n of Microgram Quantities of Disodium Ethylenediamine Tetraacetate. 0.

MENIS

AND I.

B.

RUBIN,

Oak

Ridge Tenn.

J R . , AND D.

National

L.

MANNING,

Laboratory,

Oak

O a k Ridge,

Symposium on Recent Trends in Industrial Analysis

S&S Filtration Chart This desk-sized chart shows a t a glance which filter p a p e r t o use for a given analysis. Gives relat i v e r e t e n t i o n v a l u e s of S&S A n a l y t i c a l F i l t e r P a p e r s and other b r a n d s .

Analytical Laboratory P r a c t i c e s . E. L. STANLEY, R o h m & H a a s Co., Philadelphia, Pa. Supervision of Analytical L a b o r a t o r i e s . J. W . STILLMAN, E . I. du P o n t de N e m o u r s & Co., Wilmington, D e l . Industrial Statistics.

R. E . W O O D ,

ESSO

S t a n d a r d Oil Co., B a t o n Rouge, L a . T e c h n i q u e s in P h a r m a c e u t i c a l Analysis. 1. W. G R O T E , University of C h a t t a n o o g a , Chattanooga, Tenn. Analytical Estimation of t h e Pollution Character of I n d u s t r i a l W a s t e s . W. A. M O O R E , U. S. Public H e a l t h Service, Cincinnati, Ohio.

Scientific Editorial E t h i c s . W . R . B R O D E , N a t i o n a l B u r e a u of S t a n d a r d s , Washington, D . C. (Breakfast.) Symposium on Recent Trends in Industrial Analysis

S&S Filter Paper Sampler S&S Analytical Filter Papers are known for their consistent accuracy, physical uniformity, and a wide variety of types. Make your own tests. Compare. Send for your free sampler of many S&S grades. \

*"Bac-T-FIcx" is a trademark

%d%&mMto,nm\ Carl Schleicher & Schuell Co. Dept.AC-11,Keene,

New

Hampshire

Send your free S&S • Q

Membrane Filter Folder

Filter Paper Sampler

Q Filtration Chart

Name

Chelating Agents. A. E . M A R T E L L ,

STANLEY CHABEREK D O W C h e m i c a l Co.,

M i d l a n d , Mich. G a s a n d Liquid Partition C h r o m a t o g r a p h y . D . H . L I C H T E N F E L S , Gulf Research a n d D e v e l o p m e n t Co., P i t t s b u r g h , P a .

American Chemical Society. 129th M e e t ing, Dallas, Tex., April 8 t o 13, 1956. Chemical I n s t i t u t e of C a n a d a . Sixth Divisional Conference of Analytical C h e m i s t r y Division, Sarnia, N o v e m b e r 14 a n d 15. Society for Experimental S t r e s s Analysis. 1955 a n n u a l meeting. H o t e l S h e r a t o n , Chicago, III., N o v e m b e r 16 t o 18. American Society for Quality Control. 10th Midwest Conference. Schroeder H o t e l , Milwaukee, Wis., N o v e m b e r 17 a n d 18. Southwest Regional M e e t i n g , A M E R I C A N SOCIETY.

Houston,

D e c e m b e r 1 t o 3. Delaware Valley Regional

Address C ity

State

Circle Nos. 34 A-1, 34 A-2, 34 A-3 an Readers' Service Card, page 55 A

34 A

K e é l S O n ^ — P r e c i s i o n has an e v e r i n c r e a s i n g l y w i d e r a n g e of s t o c k on h a n d for i m m e d i a t e d e livery t o you.

1500 More Reasons •—Precision is t h e o n l y m a n u f a c t u r e r of a c o m p l e t e line of r e s e a r c h l a b o r a t o r y e q u i p m e n t . S o m e 1500 items are quality-made by Precis i o n for a c c u r a c y a n d d e p e n d a b i l i t y in t h e l a b o r a t o r y . P r e c i s i o n e q u i p m e n t includes:

S t a n d a r d models and custom set-ups for every distillation and digestion need. Kjeldahl Extraction Rack illustrated.

Laboratory Utilities A co m pi e t e l i n e of " t o o l s " and accessories for the laboratory. SeroUtility Bath, at right, can be used as either a serological or utility bath.

Tex.,

For processing Or laboratory use. Recommended for use eve η with the hardest raw water. Electric, gas or steam heated. A u t o m a t i c a l l y controlled.

Flash Point Testers Cleveland type shown. Meets applicable A . S . T . M . and A . A . F . specifications. For complete

catalogs on a n y of the a b o v e equipment, write:

Meeting,

AMERICAN CHEMICAL SOCIETY. Company

R e S S O n I —Precision laboratory equipment has earned a justly deserved reputation over the years for q u a l i t y in r e s e a r c h l a b o r a t o r i e s all o v e r t h e c o u n t r y .

W a t e r Stills

ANALYST'S CALENDAR

CHEMICAL

Scientific Equipment

Kjeldahl Equipment

November 4

OR

PRECISION

Ridge

N a t i o n a l L a b o r a t o r y , O a k Ridge, T e n n . Differential Spectrophotometric Determination of Beryllium. J. C. W H I T E , A. S. MEYER,

for choosing

Phila-

delphia, P a . , F e b r u a r y 16, 1956. S e v e n t h P i t t s b u r g h Conference on Analytical Chemistry a n d Applied Spectroscopy. William P e n n H o t e l , P i t t s b u r g h , P a . , F e b r u a r y 27 t o M a r c h 2.

Precision Scientific Company 3 7 2 5 West Cortland Street, Chicago 4 7 Circle Nos. 34 A-4, 34A-S, 34 A-6, 34 A-7 on Readers' Service Card, page 55 A

ANALYTICAL

CHEMISTRY