Metrohm took 30 years

of experience in titration and

put it into ion chromatography,

pure and simple.

A pure signal... Metrohm, the conductivity experts, have developed the best conductivity detector and put it into their Model 690 iC—for sensitivity of 1 part in 500,000. A pure signal. A sign of Metrohm quality

Metrohm Shaping the future. Brinkmann

I N S T R U M E N T S , INC.

BnK55,? SEE US AT PITTSBURGH CONFERENCE—AISLE 1300. SEMINAR ROOM 23. CIRCLE 24 ON READER SERVICE CARD

...in a system that's simple to use. The Metrohm 690 is an SCIC so simple that everyone can use it, And so affordable, you can justify buying t w o -one for anions, another dedicated to cations—and simplify your ion chromatography even more.

For more information: call 800-645-3050; in New York, 516-334-7500. Or write Brinkmann Instruments, Inc., Cantiague Road, Westbury, NY 11590. (In Canada: 416-675-7911; 50 Galaxy Blvd., Rexdale, Ont. M9W4Y5)

ANALYTICAL CHEMISTRY, VOL. 60, NO. 3, FEBRUARY 1, 1988 · 181 A