The Analyst · 1990 · 17 citations · 8 references
Natural SciencesChemical EngineeringChemistryAnalytical ChemistryElemental AnalysisSpectroscopyAbsorption SpectroscopyAtomic Absorption SpectroscopyAtomic SpectroscopyExtraction TechniquesProcess Analytical ChemistryBismuth ChemistryDetection Limit AnalysisHydride Generation AnalysisHydride Generation Atomic Absorption SpectrometryHydride Generation Atomic SpectroscopyInstrument Detection LimitLinear RangePrecision
A PTFE membrane backed by a stainless-steel screen was used to separate bismuth(III) hydride in a flow injection process. The atomic absorption signal gave a linear range of 0–50 p.p.b. of bismuth(III) in a sample size of 200 µl. Good precision (1.6% relative) and a low detection limit [0.17 ng of bismuth(III)] were observed. A sampling rate of up to 300 samples h–1 was obtained. Parameters and interfering ions which might affect the final atomic absorption signal of bismuth(III) were studied.
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