Determination of samarium oxide and lanthanum oxide in the air of workplace by inductively coupled plasmamass spectrometry / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
; (12): 616-618, 2019.
Article
in Zh
| WPRIM
| ID: wpr-805687
Responsible library:
WPRO
ABSTRACT
Objective@#To establish a method for the determination ofsamarium oxide and lanthanum oxide by inductively coupled plasmamass spectrometryin the air of workplace.@*Methods@#Samarium, lanthanum and their compounds in the air of workplace were collected through microporous filter. The samples were digested by nitricacid and perhydrol (V/V=4∶1) and detected by inductively coupled plasmamass spectrometry.@*Results@#The linear range ofsamarium oxide and lanthanum oxide was 0-50.00 μg/L, Sm2O3: y=0.0119x, r=0.9999; La2O3: y=0.0617x, r=0.9998. The detection limits were less than 0.1 μg/L, and the minimum detection concentration were less than 1.52×10-5 mg/m3. The sampling efficiency were 100%, the recovery rates were 95.70%-102.01%, and the precision were 0.78%-1.58%.@*Conclusion@#The indicators established in this study are conformed with the requirements of Chinese Occupational Standars of GBZ/T 210.4-2008, "The Guidelines for the Development of Occupational Hygiene StandarsMehods Part 4: Determination of Chemical Substances in the Air of Workplace".
Full text:
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Database:
WPRIM
Language:
Zh
Journal:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Year:
2019
Document type:
Article