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Enhancement Effect of Trace Potassium Determined by Flame Atomic Absorption Spectrometry

Luo Sheng

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Abstract

The enhancement effect of some surfactants on trace potassium determined by flame atomic absorption spectrometry(FAAS) was investigated,and the results proved that the enhancement effect of STPP on potassium was notable.The sensitivity for the determination of potassium was 11 times that of conventional FAAS,and the linear zone of concentration was enlarged.A new method for the determination of trace potassium in hair determined by enhancement effect FAAS was proposed according to the experiment.When the method was applied to the determination of trace potassium in hair,it showed that its detected limitation to trace potassium in hair was 6.0 μg·L -1 , and RSD 0.85%～2.50%, recovery ratio 100.3%～102.6%,with satisfactory results.

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What this paper is about

The enhancement effect of some surfactants on trace potassium determined by flame atomic absorption spectrometry(FAAS) was investigated,and the results proved that the enhancement effect of STPP on potassium was notable.The sensitivity for the determination of potassium was 11 times that of conventional FAAS,and the linear zone of concentration was enlarged.A new method for the determination of trace potassium in hair determined by enhancement effect FAAS was proposed according to the experiment.When the method was applied to the determination of trace potassium in hair,it showed that its detected limitation to trace potassium in hair was 6.0 μg·L -1 , and RSD 0.85%～2.50%, recovery ratio 100.3%～102.6%,with satisfactory results.

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Available abstract

The enhancement effect of some surfactants on trace potassium determined by flame atomic absorption spectrometry(FAAS) was investigated,and the results proved that the enhancement effect of STPP on potassium was notable.The sensitivity for the determination of potassium was 11 times that of conventional FAAS,and the linear zone of concentration was enlarged.A new method for the determination of trace potassium in hair determined by enhancement effect FAAS was proposed according to the experiment.When the method was applied to the determination of trace potassium in hair,it showed that its detected limitation to trace potassium in hair was 6.0 μg·L -1 , and RSD 0.85%～2.50%, recovery ratio 100.3%～102.6%,with satisfactory results.

Key concepts: Potassium, Chemistry, TRACE (psycholinguistics), Analytical Chemistry (journal), Atomic absorption spectroscopy, Trace Amounts, Absorption (acoustics), Mass spectrometry

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