Determination of 2,5-hexanedion in urine by liquid-liquid extraction-gas chromatography / 中国职业医学
China Occupational Medicine
;
(6): 233-235, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-881786
ABSTRACT
OBJECTIVE:
To establish a method for rapid determination of 2,5-hexanedion in urine by liquid-liquid extraction-gas chromatography.METHODS:
Two mL of urine simple was acidified using 100 μL of hydrochloric acid. Anhydrous sodium sulfate 0.5 g was added for salting out. Extraction was carried out using 1 mL of chromatographic grade ethyl acetate vortex, separated by Rtx®-WAX chromatographic column, and detected with flame ionization detector.RESULTS:
The good linear range of 2,5-hexanedion was 0.25-15.00 mg/L. The correlation coefficient was 0.999 7. The detection limit was 0.08 mg/L and the minimum detection concentration was 0.25 mg/L. The average recovery rate was 93.0%-110.0%. The within-run relative standard deviation(RSD) was 1.9%-5.4% and the between-run RSD was 5.0%-11.2%.CONCLUSION:
This method is simple, sensitive and accurate, which is suitable for detecting urine 2,5-hexanedion in occupational n-hexane exposed workers and suspected patients with occupational chronic n-hexane poisoning.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Occupational Medicine
Year:
2019
Type:
Article
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