2010•Chinese Journal of Spectroscopy LaboratoryRequires access
Determination of Total Arsenic and Inorganic Arsenic in Seaweed Fertilizer by Atomic Fluorescence Spectrometry
Ni Zhang
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Abstract
Total arsenic and inorganic arsenic in seaweed fertilizer were determined by atomic fluorescence spectrometry.HNO3-H2SO4-HClO4 was selected to digest the seaweed fertilizer for total arsenic determination.Inorganic arsenic was extracted by 5% HCl.The detection limit is 0.05μg/L,the recovery of total arsenic and inorganic arsenic are 89.8% and 86.8%,and relative standard deviation is 3.2%(n=11).