Influencing Factors of Determination of Total Arsenic in Soil by Atomic Fluorescence(AFS-9760) Method

• 作者: Tingting MENG
• 来源期刊: 亚洲农业研究:英文版
• 学科: 化学
• 关键词: ATOMIC FLUORESCENCE SOIL TOTAL ARSENIC Influencing factors
• 年，卷（期）: 2020,（1）
• 页码范围: 50-52
• 页数: 3页
• 分类号: O657.31

摘要

In this paper,the atomic fluorescence(AFS-9760)method used for the determination of total arsenic in soil was verified based on three national quality control samples GSS-8,GSS-25,and GSF-3.Under the conditions of negative pressure of 270 V,carrier gas flow of 300 m L/min,and shield flow of 1000 m L/min,the detection limit of the method was 0.0092 mg/kg;the precision of GSS-8,GSS-25,and GSF-3 was 3.96%,1.47%and 1.08%,and the accuracy was 3.07%,2.13%,2.93%respectively.In addition,the matters needing attention during this experiment,such as reagent factor,instrument conditions,calibration curve,etc.,were summarized.It provides certain reference for the determination of total arsenic content in soil by atomic fluorescence spectrometry.