Detection of methyl carbamate and ethyl carbamate in yellow rice wine by gas chromatography-mass spectrometry / 中华预防医学杂志
Chinese Journal of Preventive Medicine
; (12): 1056-1059, 2013.
Article
in Zh
| WPRIM
| ID: wpr-355740
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To establish the method of simultaneous determination of methylcarbamate (MC) and ethylcarbamate (EC) in yellow rice wine by gas chromatography-mass spectrometry (GC/MS).</p><p><b>METHODS</b>MC and EC in yellow rice wine were derived by 9-xanthydrol, and then the derivants were detected by GC/MS; and quantitatively analyzed by D5-EC isotope internal standard method.</p><p><b>RESULTS</b>The linearity of MC and EC ranged from 2.0 µg/L to 400.0 µg/L, with correlation coefficients at 0.998 and 0.999, respectively. The limits of quantitation (LOQ) and detection (LOD) were 0.67 and 2.0 µg/kg. When MC and EC were added in yellow rice wine at the range of 2.0-300.0 µg/kg, the intraday average recovery rate was 78.8%-102.3%, relative standard deviation was 3.2%-11.6%; interday average recovery rate was 75.4%-101.3%, relative standard deviation was 3.8%-13.4%. 20 samples of yellow rice wine from supermarket were detected using this method, the contents of MC were in the range of ND (no detected) to 1.2 µg/kg, the detection rate was 6% (3/20), the contents of EC in the range of 18.6 µg/kg to 432.3 µg/kg, with the average level at 135.2 µg/kg.</p><p><b>CONCLUSION</b>The method is simple, rapid and useful for simultaneous determination of MC and EC in yellow rice wine.</p>
Full text:
1
Index:
WPRIM
Main subject:
Oryza
/
Urethane
/
Wine
/
Carbamates
/
Food Contamination
/
Gas Chromatography-Mass Spectrometry
/
Methods
Type of study:
Diagnostic_studies
Language:
Zh
Journal:
Chinese Journal of Preventive Medicine
Year:
2013
Type:
Article