2002•Hainan Daxue xuebao. Ziran kexue banRequires access
Determining the Abundant Potassium in Mixed Fertilzer by Flame Atomic Absorption Spectrometry
Luo Sheng
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Abstract
The determination of abundant potassium in mixed fertilizer was studied by flame atomic absorption spectrometry that the next smart spectrum line of potassium was to be taken as analytical spectrum line. The determinative parameters are determined. The results proved that the linear zone of concentration for the determination of potassium was enlarged (0-250 mg·L-1), and the accurate degree was high. When the method was applied to the determination of abundant potassium in mixed fertilizer, it showed that its detected RSD was 2.4%-5.0% and recovery ratio 95.6%-101.3%. These results were the same as those by tetraphenylboron potassium weight method.