"Before the Carlo Erba NA1500, nitrogen analyzers all left something out." That something was sulfur and carbon. Only the NA 1500 nitrogen/protein analyzer offers simultaneous determination of nitrogen, carbon and sulfur—in the same instrument, with speed, sensitivity, automation and versatility. Three NA 1500 configurations offer Ν analysis in 3 minutes, N,C in 6 min., N,C,S in 9 min. That's speed. From 100 ppm to 100%. That's sensitivity. For up to 200 solid and liquid samples per unattended run. Thafs automation. Organic and inor ganic substances. That's versatility.
CRRLO ERBR INSTRUMENTS
ing, caustic preparatory chemicals or operator intervention after weighing. The versatile Ν A 1500 can save you time and money by lowering cost per analysis, eliminating digestion and distillation, and providing reliable pollution-free automated operation. For more information, contact: Haake Buchler Instruments, Inc. 244 Saddle River Road Saddle Brook, NJ 07662-6001 201-843-2320 or 1-800-631-1369
But there's more-an RS 232 C interface, quadrupole or mass spectrometer coupling; better than ±0.1% reproducibility (absolute value); and a computing integrator for %N,C,S printout. And all this without the need for extensive operator train The ΝA 1500 analyzes foods, polymers, coal, cokes, oils, papers, fibers, fertilizers, sediments, metals, plastics, animal feed, biological fluids, rocks, explosives and more. Find out how.
HAAKE BUCHLER INSTRUMENTS, INC. CIRCLE 101 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 58, NO. 12, OCTOBER 1986 · 1171 A
