HITACHI SCIENTIFIC INSTRUMENTS

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Graphite furnaces produce a lot more "smoke” than atoms. When the heat is on, we can help you sort out the atoms from the background. Hitachi's unique Zeeman AA systems correct for higher background levels than conventional methods. And with a far greater accuracy.

With better background correction, your sample preparation is reduced. And you can correct in the UV or visible because only your hollow cathode lamp is used for measuring both atomic and nonatomic signals. This eliminates replacing costly D2 Arcs. It also gives you a true double beam system, since your reference beam goes through the cuvette not around it. —

It also goes through our new Zeeman flame, which is mounted in tandem with the furnace. Flame or flameless with nothing to change or align. You can easily use the best technique with Zeeman background correction for both.

Our illustration shows one simple example. We can show you many more in our new brochure. Or ask us for a demonstration with your most challenging samples. Just call or write our nearest office. We will help you find the atoms. aomi

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a

124 1.25

Element: Pb

1.21

1.22

Graphite A tomizer

-Ml

1.28 1.26CBKG)

Wavelength: 283.3 nm Sample volume: 10///

BACKGROUND

*g

JL NaC 40,0DOppm

+P

D.2p pm (1:1 )

NaCI 40.300ppm +Pb 0.1 ppm

.

NaCM O.OOOppm +0ist illed water

LT3

ZEEMAN

-

CORRECTED

®

JL.

WHEN THE HEAT IS ON. CAN YOU FIND THE ATOMS?

The leader in Zeeman AA-

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HITACHI SCIENTIFIC

INSTRUMENTS

NISSEI SANGYO AMERICA, LTD.

460 East Middlefield Road, Mountain View, CA 94043 U.S.A. Tel: (415)969-1100 riSSEI SANGYO GmbH

(Deutschland)

West Germany: 0211-450982

•

NISSEI SANGYO CO., LTD.

NISSEI SANGYO CO., LTD.

England: 0734-664149

Japan: (03) 504-7111

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