CONTROLLED POTENTIAL
POLAROGRAPH Type OH-102 for rapid and accurate analysis of m e t a l s a n d ores pharmaceuticals f o o d - a n d drug p r o d u c t s , e t c . for scientific research purposes in studies with nonaqueous systems electrode r e a c t i o n s kinetic studies complex-chemistry, etc. Automatic compensation circuit for work with high-resistance system up to several megohms,—high sensitivity,—self balancing potentiometric recorder,—chart width 250 mm,—as much as six various chartspeeds, forward or reverse,—can be used as tension or current recorder.— Rugged construction,·—self-contained,—easy to handle.
Exporters:
METRIMPEX
HUNGARIAN TRADING COMPANY FOR INSTRUMENTS Letters:
BUDAPEST 62. P.O.B. 202. Hungary Cables:
INSTRUMENT BUDAPEST
Circle No. 1 on Readers' Service Card
Curtin Custom Chromatographic Columns lor any standard or special chromatograph Chromatographic columns for any instrument, standard or special, and packing for any application can be supplied promptly by Curtin. Columns are furnished complete and ready to use with fittings and packing as specified. Packing, consisting of one solid adsorbent or any inert support and substrate, can be selected from more than 175 stock packings listed in Curtin Catalog C-64. Specify manufacturer and model number of any standard chromatograph . . . or dimensions
a n d configuration of column desired for nonstandard instruments. Custom columns are $17.50 each . . . plus $1.00 per foot for aluminum or copper tubing and $2.00 ner font for stainless steel tuhinff.
W.H.CURTIN &C0. (^ft
SCIENTIFIC
APPARATUS
AND
CHEMICALS
' HOUSTON · TULSA · BIRMINGHAM · NEW ORLEANS · MIAMI "· DALLAS · JACKSONVILLE · ATLANTA · CORPUS CHRIST! * ALBUQUERO.UE · MEMPHIS · SAN ANTONIO · MEXICO CITY 178
Circle No. 119 on Readers' Service Card 76 A
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ANALYTICAL CHEMISTRY
