Determination of hydrogen selenide in workplace air with atomic fluorescence.
- Author:
Wen-hua QIN
1
;
Yan-yan LU
;
Qi GENG
Author Information
- Publication Type:Journal Article
- MeSH: Air Pollutants, Occupational; analysis; Selenium Compounds; analysis; Spectrometry, Fluorescence; Spectrophotometry, Atomic; Workplace
- From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2012;30(2):144-145
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo determined hydrogen selenide in workplace air with atomic fluorescence.
METHODHydrogen selenide were sampled with 0.1 mol/L sodium hydroxide solution in multi-hole absorbing tubes. The sampled absorbing solution were digested with (9+1) nitric acid/perchloric acid. The selenide in sample were reduced by potassium borohydride in 5.0% hydrochloride solution and determined with atomic fluorescence.
RESULTSThere was a good linearity (r=0.9999) over the concentration of 0-150 microg/L, The precision of low, middle and high concentration were 3.1%, 7.4% and 6.7%, respectively. The sample collection rate can reach 99%.
CONCLUSIONThe method was accurate and sensitive to detect hydrogen selenide in workplace air.
