1. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China 2. Laboratory of Xinjiang Branch Company, Yili Group, Urumqi 830000, China
Abstract：The rapid and direct method of selection of the matrix modifier for the determination of trace lead in soil watered with waste water by graphite furnace atomic absorption spectrometry under the best matrix modifier selected has been developed. The effect of the matrix modifiers including NH4H2PO4,(NH4)3PO4, NH4CI, Pd-Mg, NH4H2PO4+MgNO3+NH4NO3 etc. was determined by using graphite furnace atomic absorption spectroscopy. The results showed that NH4H2PO4 is the best matrix modifier for the determination of lead in soil watered with waste water, and the content of lead was determined by using 4.0 mg·L-1 NH4H2PO4 as a matrix modifier, ashing and atomization temperature of 850 ℃ and 1 600 ℃, respectively, and rectifying background. The relative standard deviation of the method was 2.6%, and the recovery was in the range of 92.4%-104%.
肖开提·阿布力孜1,沙尼亚·托乎提2,阿布力孜·伊米提1,王吉德1,史瑞芬1. GF-AAS法测定处理污水灌溉土壤中铅最佳基体改进剂的选择及其应用[J]. 光谱学与光谱分析, 2008, 28(06): 1410-1412.
SHAWKET Abliz1,SANIYA Tohti2,ABLIZ Yimit1,WANG Ji-de1,SHI Rui-fen1. Selection of Matrix Modifier for GF-AAS Determination of Trace Lead in Soil Watered with Waste Water and Its Application. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(06): 1410-1412.
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