WILKENS-ANDERSON COMPANY

J. C. O'Connell Co. Western Scientific Associates. CAMBRIDGE,. ENGLAND. P.O. Box 362, New Canaan, Conn. Box 1 1 3, San Ramon, California. Instruments,...
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Don't turn your back on Flame Photometry! UNTIL YOU TRY UNICAM If you think that Flame analysis is too limiting for your work, reserve judgment until you see the new Unicam SP-900 Flame Spectrophotometer. The Unicam is not an "attachment" or compromise instrument, but a complete Spectrophotometer, d e signed specifically for emission work. Now you can consider flame analysis for elements other than the Alkali Earth Metals. Manganese, Copper, Boron, Magnesium, Silver and many others are being done routinely on the SP-900. Unicam's unique burner and atomizer design, coupled with superior electronics, gives stability and reproducibility never before seen with a flame instrument. Permits use of new addition and buffer techniques for the elimination of mutual interferences.

The high light gathering power of the monochromator and the excellent resolution of the optical system, e n ables the SP-900 to reduce spectral interference to a minimum. The SP-900 has other noteworthy features. Standard readout is with a spot galvanometer and the addition of any 10 mv external recorder makes the SP-900 a full recording flame spectrophotometer. So don't sacrifice the inherent speed and accuracy that is possible with flame photometry until you try the Unicam SP-900. Write today for the Unicam SP-900 Bulletin and to arrange a demonstration of this startling new instrument. Visit booths 16 & 73 at the Pittsburgh

UNICAM INSTRUMENTS, C A M B R I D G E

Instruments,

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E N G L A N D

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WILKENS-ANDERSON 4525 W. DIVISION STREET ·

Conference

COMPANY

CHICAGO 51, ILLINOIS

J· C. O'Connell Co.

Western Scientific Associates

P.O. Box 3 6 2 , New Canaan, Conn.

Box 1 1 3, San Ramon, California

and service a v a i l a b l e

t h r o u g h our distributors.

Circle No. 101 on Readers' Service Card

80 A

·

ANALYTICAL CHEMISTRY

Circle No. 174 on Readers' Service Card