how to find the bad apple Don't let a "bad apple" jeopardize your plant, product, process or environment. Find that contaminated barge, storage tank, drum, or pipeline B E F O R E trouble begins. T h e " D O H R M A N N " will locate that out-of-tolerance material rapidly. Each determination for total nitrogen, sulfur, or halogen takes less than 5 minutes. For over a decade the D O H R M A N N Microcoulometric Titrating System has proven to be the most powerful tool to achieve these exacting, specific, and quantitative results.
(N, S, or halogen)
Today's D O H R M A N N handles a wide range of materials—gases, high volatiles, liquids and solids. Natural gas, feed stocks, soils, food stuffs, and feeds, metals, pesticides, wastewater, seawater, polymerizing monomers, brine solutions, catalysts, and polymers pose no problems. Sampling systems are available for all types of materials. Prices begin at $6500. For applications notes, reprints, evaluation testing or ordering information contact D O H R M A N N Division, Envirotech Corporation, 1062 Linda Vista Avenue, Mountain View, California 9 4 0 4 0 , ( 4 1 5 ) 9 8 6 - 9 7 1 0 . CIRCLE 4 4 O N READER SERVICE CARD
DOHRMANN ENVIROTECH
30 A ·
ANALYTICAL CHEMISTRY, VOL. 43, NO. 10, AUGUST 1971
