Determination of 100 Pesticide Residues in Moras alba by LC-MS/MS / 中国药房
China Pharmacy
;
(12): 2122-2125,2126, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-605664
ABSTRACT
OBJECTIVE:
To establish a method for the determination of 100 pesticide residues in Morus alba.METHODS:
LC-MS/MS was conducted on the column of ZORBAX Eclipse plus C18 with mobile phase of acetonitrile (containing 5% water, 0.1% formic acid,5 mmol/L ammonium formate)- water(containing 0.1% formic acid,5 mmol/L ammonium formate)(gradient elution)at a flow rate of 0.4 ml/min,column temperature was 40 ℃,injection volume was 5 μl;MS conditionsionization source was electrospray ionization with positive ion mode,scanning mode was dynamic MRM,scanning time window was 2 min;atomiz-ing gas was nitrogen,atomizing gas pressure was 40 psi,drying gas flow rate was 5 L/min,capillary voltage was 4 000 V,and ion spray voltage was 500 V.RESULTS:
The linear range of 100 pesticide residues was 2.4-150 ng/ml(r>0.990 0),recovery was 69.3%-128.2%,and the determination limit was 0.003-16 μg/kg.CONCLUSIONS:
The method is simple,stable and reproduc-ible,and can be used for the determination of pesticide residues in M. alba.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Pharmacy
Year:
2016
Type:
Article
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