Acid Enhancement of Zinc and Lead Atomic Absorption Signals

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We have been measuring atmospheric particulate Pb and Zn concentrations by atomic absorption. Samples are collected on membrane filters and dissolved in HNO3-HClO4 prior to comparison with aqueous standards, using an Instrumentation Laboratories model 153 dual beam dual channel atomic absorption spectrophotometer equipped with background correction, operating with a stoichiometric air-acetylene flame. The absorption lines are 217.0 nm for Pb and 213.9 nm for Zn.

Keywords: Analysis for Pb and Zn; Atomic absorption; Methods, analytical

Document Type: Short Communication


Affiliations: Scientific Research Staff, Ford Motor Company, P. O. Box 2053, Dearborn, Michigan 48121

Publication date: November 1, 1974

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