Copper Assay in 8 Minutes Eberbach ULTRA-SPEED ELECTRO-ANALYZER Where determination time is critical or where volume produc tion of determinations is urgent, this new equipment is your answer. Most determinations require approximately one fourth that of conventional apparatus; initial investment is less than for equivalent production capacity in conventional equipment. A n analytically complete deposition of one gram copper sarn ie takes 8 minutes or less. Best equipment previously required 30 t o 60 minutes. Improved cell design, a unique electro-mag netic field and more current produce the speed. Catalog No. 1250 $635.00
P.O. Box 1 0 2 4
Eberbach
CORPORATION
Write for Catalog 67
Ann Arbor, Mich. 48106
Circle No. 1 on Readers' Service Card
See ACS Laboratory Guide for All Products/Sales Office
KLETT PRODUCTS
'Λ KLETT COLONY MARKER AND TALLY. For the rapid and accurate counting of colonies. Marks and records at the same time, leaving per manent record for rechecking. When all of the colonies in an area or dish have been marked, the tally is read and then is reset to zero with the reset knob. Plates that would be considered too crowded for counting by the usual method can be counted easily with this instrument. The counting opera tion can be interrupted at any point without caus ing errors. Complete with pen and extension cord. For operation on 115 volt, A.C., 60 cycle.
KLETT BIO-COLORIMETER T h e visual color imeter illustrated presents a num ber of outstand ing features mak ing it ideal for c l i n i c a l or re search work. Built on the most modern mechanical and op tical principles it is widely accepted for accuracy and dur ability.
Klett
MANUFACTURING CO., INC.
179 EAST 87th STREET, NEW YORK, Ν. Υ.
Circle No. 63 on Readers' Service Card
112 A
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ANALYTICAL CHEMISTRY
Circle No. 82 on Readers' Service Card -
