Preparative Chromatograph FRACTOVAP model Ρ I Q 1 1
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Preparative and analytical chromatograph
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Single or dual column system
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Isothermal or automatic linear temperature pro gramming
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Θ •
••*•'
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'••4M
High-capacity automatic injector: 0.3-M2 ml
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High-efficiency, large-bore preparative columns
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Fast heating (50 - 300° C in 10 minutes) and cooling (300 - 50° C in 5 minutes)
• Automatic peaks selector •
Programmed fraction collector with static valving and absolutely sealed condensate cuvettes
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Carrier recirculation system (optional)
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Complete automatic and unattended operation
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Temperature ranges: vaporizer 50 - 350° C column oven 50 - 300° C detector 50 - 350° C
S! φ
CARLO E R B A SCIENTIFIC I N S T R U M E N T S DIVISION VIA IMBONATI 21 M I L A N O ( I T A L Y )
Circle No. 50 on Readers' Service Card
KLETT PRODUCTS
^m. K l e t t . 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 r e 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. 68 on Readers' Service Card
36 A
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ANALYTICAL CHEMISTRY
Circle No. 27 on Readers' Service Card
