Abstract：Objective To establish a method for the determination of indium in human hair by graphite furnace atomic absorption spectrometry. Methods After microwave digestion, the sample was diluted with deionized water, and the colloidal palladium was used as matrix modifier. The sample was determined by graphite furnace atomic absorption spectrometry and quantified by external standard method. Results The linear range of the method was 5.0-50.0 μg/L, and the correlation coefficient (r) was 0.9996. The detection limit of the method was 0.26 μg/g. The precision and adding standard recovery were 1.63%-2.12% and 97.6%-100.5%, respectively. Conclusions The method uses less sample amount and digestion liquid, and has the advantages of simple operation, high efficiency and less target loss. The technical indicators can meet the requirements of the Guide for the Establishing of Occupational Health Standards-Part 5: Determination methods of Chemicals in Biological Materials.
王超洋, 姜开友, 秦文华. 微波消解-石墨炉原子吸收法测定微量人发中铟[J]. 实用预防医学, 2019, 26(9): 1140-1141.
WANG Chao-yang, JIANG Kai-you, QIN Wen-hua. Determination of indium in the trace sample of human hair by graphite furnace atomic absorption spectrometry after microwave digestion. , 2019, 26(9): 1140-1141.
2019, Vol. 26 
