Determination of tin dioxide in workplace air by atomic fluorescence spectrometry after alkali fusion

VernacularTitle:工作场所空气中二氧化锡测定的碱熔消解-原子荧光光谱法
Author: Fen LIU ¹ ; Jianpei YUN ; Shuangfeng LI ; Yiran LIN
Author Information

1. 518000,深圳市职业病防治院
Keywords: Tin dioxide; Workplace; Atomic fluorescence spectrometry; Alkali fusion
From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2016;34(2):140-141
CountryChina
Language:Chinese
Abstract: Objective To establish the method of atomic fluorescence spectrometry (AFS) after alkali fusion for determination of tin dioxide in workplace air.Methods Tin dioxide in workplace air was collected with microporous membrane,directly digested by alkali fusion with solid sodium hydroxide heated by electric furnace,and determined by AFS.Results The linear range of tin dioxide (as Sn) determined by AFS was 1.5～ 100 μg/L (excluding zero),and the correlation coefficient was 0.9993.The detection limit of this method was 0.5 μg/L,the lower limit of quantification was 1.5 μg/L,and the minimum detectable concentration was 0.05 mg/m3 (the volume of the air sample was 75 L).The relative standard deviation was 1.94％～3.55％,and the average recovery of standard addition was 95.0％～96.0％.Conclusion The method of AFS after alkali fusion for determination of tin dioxide in workplace air is proved to be simple,rapid,sensitive,and accurate,with complete digestion.