Determination of methyl pentane in workplace air by solvent desorption-gas chromatography / 中国职业医学
China Occupational Medicine
;
(6): 89-92, 2021.
Article
in Chinese
| WPRIM
| ID: wpr-881977
ABSTRACT
OBJECTIVE:
To establish a solvent desorption-gas chromatography method for determination of methyl pentane in workplace air.METHODS:
Methyl pentane in workplace air was collected with activated carbon tube and desorbed with carbon disulfide, then separated by DB-1 capillary column, detected by flame ionization detector, and quantified by standard curve method.RESULTS:
Good linearity was obtained in the range of 1.98-6 600.00 mg/L with the correlation coefficient of 0.999 9. The minimum detection limit and the minimum quantification limit were 0.06 and 0.20 mg/L, respectively. The minimum detection concentration and minimum quantification concentration was 0.04 and 0.14 mg/m~3, respectively(calculated by collecting 1.5 L of air sample). The average desorption efficiency was 97.3%-102.2%. The within-run relative standard deviation(RSD) and the between-run RSD were 0.4%-0.9% and 0.3%-3.0%, respectively. The sampling efficiency was 96.7%-100.0% and the penetration capacity was 8.68 mg. The samples can be stored at room temperature for at least 14 days.CONCLUSION:
This method is suitable for methyl pentane detection in workplace air.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Occupational Medicine
Year:
2021
Type:
Article
Similar
MEDLINE
...
LILACS
LIS