Determination of phosphoric acid in the air of workplace by ion chromatography.
- Author:
Shuang-feng LI
1
;
Juan YI
;
Jin-min CAI
Author Information
- Publication Type:Journal Article
- MeSH: Air Pollutants, Occupational; analysis; Chromatography; Ions; analysis; Phosphoric Acids; analysis; Workplace
- From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2011;29(2):144-145
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo develop a method to determine phosphoric acid in the air of workplace by ion chromatography.
METHODSPhosphoric acid was collected by millipore filter and washed by deionized water then detected by ion chromatography.
RESULTSLinearity range of test was 0 ∼ 20 µg/ml, relative standard deviation (RSD) was 1.95% ∼ 3.31%, the elution efficiency was 103.0% ∼ 109.6%, determination limit was 0.1 µg/ml (when sample size was 20.01) concentration limit was 0.01 mg/m(3) (when the collected air was 75 L).
CONCLUSIONThis method is convenient for air collection, simple, with high sensitivity and good precision, is a good method for determination of phosphoric acid in the air of workplace.
