The application of furnace atomic absorption to the solution of problems in environmental analysis
TL;DRAbstract
A method is developed for the determination of lead in air particulates using furnace atomic absorption.By using porous graphite as a filter medium the atomic absorption determinations can be carried out with no intermediate treatment.Using particles generated by the condensation of lead chloride vapors and which ranged from 0.1 to 1.5 m in diameter a statistical comparison was made between porous graphite filters and membrane filters and the values obtained were found to be statistically similar at 95% confidence.Both the porous graphite filters and the membrane filters failed to retain any traces of organic lead from even large excesses.Porous graphite filters, however, were much more convenient to use and they were found to be more precise.
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A method is developed for the determination of lead in air particulates using furnace atomic absorption.By using porous graphite as a filter medium the atomic absorption determinations can be carried out with no intermediate treatment.Using particles generated by the condensation of lead chloride vapors and which ranged from 0.1 to 1.5 m in diameter a statistical comparison was made between porous graphite filters and membrane filters and the values obtained were found to be statistically similar at 95% confidence.Both the porous graphite filters and the membrane filters failed to retain any traces of organic lead from even large excesses.Porous graphite filters, however, were much more convenient to use and they were found to be more precise.
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