FOR T H E FACTS on "C.P." clean glassware and laboratory apparatus
send for
"THIS IS
HAEMO-: A c o m p l e t e report p l u s t e c h n i c a l d a t a b a s e d o n t h r e e y e a r s of r e s e a r c h on H a e m o - S o l , t h e c l e a n s e r s p e c i f i c a l l y f o r m u l a t e d for p r e c i s i o n l a b o r a t o r y g l a s s w a r e a n d apparatus, including metals, rubber a n d plastics.
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MEINECKE & COMPANY, INC. s» \ t m"
Our 70th year of continuous service to the hospitals of America 2 2 9 V A R I C K STREET, NEW YORK 14 Circle No. 74 on Readers' Service Card
Specify Thermco ~~ Process Gas Analyzers
1
Unexcelled for accuracy! Thermco specializes in the design and con struction of finest quality record ing and indicating analyzers for many process gases. Examples; •
OXYGEN Measuring purity, trace oxygen arid i n t e r m e d i a t e o x y g e n .
•
ARGON Purity measurements.
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HYDROGEN Measuring purity, and hydrogen in f u r n a c e a t m o s p h e r e s .
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NITROGEN Purity measurements;
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CARBON D I O X I D E Purity measurements fuel ratios.
a n d air-
Trace ranges from 0-20 ppm to 0-5000 ppm, purity ranges 99.98 to ^ 1 0 0 % , intermediate ranges, and 0-2% oxygen measurements. Also builders of complete process control panels. Write today7' for Catalog A-12
Thermco
T h e r m c o Instrument C o r p . Circle No. 105 on Readers' Service Card
is this Chromatograph different? WE BELIEVE IT IS! Every instrument is made to meet the exacting demands of specific analytical problems —pretested and set up by a chemist and engineer in your laboratory. Further, E. I.R. offers immediate and efficient service. Qualified scientific personnel stand ready to assist you in solving specific analytical prob lems. E. I. R. Gas Chromatographs are capable of ana lytical and semipreparative operation. Three different, interchangeable, detection systems* are available with radium, strontium 90 or tritium sources.
* Lovelock Argon Ionization Cell*Electron Capture Device'" Cross-Sectional Detector
• E.I.R. also manufactures dual temperature column conditioners and liquid scintillation counting systems for radioactive measurement of effluent components in gas chromatography.
ΤΓ ι ww inc. V I I V electronic instruments for research For further specific information write or telephone collect! Electronic Instruments for Research, Inc., 4135 Hayward Ave., Baltimore 15, M d . , Telephone No. Area Code 301-367-4146. Circle No. 134 on Readers' Service Card VOL. 3 4 , N O . 1 2 , NOVEMBER 1 9 6 2
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