Sample Preparation in Crucible Atomizers for Determining Cadmium and Lead in Natural Water by Atomic Absorptionстатья
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Дата последнего поиска статьи во внешних источниках: 27 января 2016 г.
Аннотация:In the determination of trace elements in samples of natural water in crucible electrothermal
atomizers, it is promising to carry out two consecutive stages of sample preparation, i.e., the dynamic preconcentration of dissolved forms of elements on a solid sorbent with the simultaneous separation of suspended matter and subsequent thermal decomposition of the concentrate with fractional evaporation-condensation of an analyte. This approach allows us to reduce the risks of introducing impurities and losses of elements. The first stage of sample preparation can be executed under field conditions out of the laboratory.