Improvement of detection method for acetonitrile in workplace air / 中国职业医学
China Occupational Medicine
; (6): 200-203, 2020.
Article
in Zh
| WPRIM
| ID: wpr-881887
Responsible library:
WPRO
ABSTRACT
OBJECTIVE:
To improve the standard detection method for acetonitrile in workplace air.METHODS:
Acetonitrile in the air of workplace was collected by silica gel, eluted with methanol, separated and determined by gas chromatography with flame ionization detection.RESULTS:
After the improvement of the method, the linear range of acetonitrile was 1.57-1 574.00 mg/L, and the correlation coefficient was 0.999 98. The detection limit was 0.29 mg/L and the minimum detection concentration was 0.19 mg/m~(3 )(collected sample volume was 1.5 L). The average desorption efficiency was 93.1%-98.9%. The within-run and between-run precision was 2.6%-3.3% and 1.7%-3.6%, respectively. The samples could be stored at room temperature for at least 10 days.CONCLUSION:
The improved method is precisied, accurate and simple to operate, which is suitable for determination of acetonitrile in workplace air.
Full text:
1
Index:
WPRIM
Type of study:
Diagnostic_studies
Language:
Zh
Journal:
China Occupational Medicine
Year:
2020
Type:
Article