[Determination of tin dioxide in workplace air by atomic fluorescence spectrometry after alkali fusion].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 34(2): 140-1, 2016 Feb 20.
Article
en Zh
| MEDLINE
| ID: mdl-27014897
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/m(3) (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.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Espectrometría de Fluorescencia
Idioma:
Zh
Revista:
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
Asunto de la revista:
MEDICINA OCUPACIONAL
Año:
2016
Tipo del documento:
Article
País de afiliación:
China