Abstract

The application of tubular ion-exchange membranes for on-line use with flame atomic absorption (FAA) was investigated. Signal enhancement factors as high as 22 were observed within five minutes for a variety of cations. Enhancements improved with lower pH receiver solutions, increased tubing length, and increased temperature. Optimum receiver flow rates were a compromise between optima for independent Donnan dialysis or FAA experiments. Low anion interferences were observed for phosphate-to-calcium mole ratios up to 80.

Atomic Absorption Spectroscopy with High Temperature Flames

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Atomic Emission Characteristics of a Premixed Acetylene–Nitrous Oxide, Total Consumption Flame

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Two-line atomic fluorescence as a temperature probe for highly sooting flames

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The Application of Separated Flames in Analytical Flame Spectroscopy

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