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DOI: 10.1039/A800376I (Paper) Reference Section for: J. Anal. At. Spectrom., 1998, 13, 989-994

Determination of iron and nickel in electronic grade chlorine by sealed inductively coupled plasma atomic emission spectrometry

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Reha K. Tepe, Tracey Jacksier and Ramon M. Barnes

Abstract

A sealed inductively coupled plasma was used to determine the concentration of Fe and Ni in electronic grade chlorine. Since the discharge was formed inside a quartz container, factors such as toxicity, corrosion and contamination were not of primary concern. The system was calibrated for iron using two different standard materials, a ferrocene permeation tube and iron pentacarbonyl in argon. Under flowing conditions the detection limits (3σb) were 290 and 20 pg ml–1 for iron pentacarbonyl and ferrocene, respectively. A nickelocene permeation tube was used for the determination of Ni that resulted in a detection limit (3σb) of 9 pg ml–1. Parameters that affect the signal intensity and reproducibility, such as forward power, wash-out time, flow rate and external cooling, were optimized.

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