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Determination of 5 popular pesticide residues in peanut by HPLC-MS/MS
PANG Shuai,DING Xiao-xia, LI Pei-wu, Zhou Hai-yan, JIANG Jun, DENG Xiao-wei, DU Xiao-hui
CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2015, Vol. 37 ›› Issue (2) : 247.
PDF(1161 KB)
PDF(1161 KB)
Determination of 5 popular pesticide residues in peanut by HPLC-MS/MS
A synchronous detection method by HPLC-MS/MS of 5 pesticide residues in peanut was studied. After being extracted, cleaned-up synchronously with the distribution of liquid-liquid extraction method, acetochlor, isopropyl methyl grass amine, aldicarb, imidacloprid and phoxim in peanuts were analyzed by HPLC-MS/MS. The result showed that at the spiked sample levels of 0.01, 0.05 and 0.10 mg/kg, the average recovery rate was 80.9%~108.5% with the relative standard deviation of 1.5%~7.8% , and the detection limit was 0.001~0.011 mg/kg. This method was simple and economical, without requirement for special reagents and instruments. The detection sensitivity was high with the limits of detection and quantitation both below the national maximum residue limit. All indicators were conformed with the national quality control standards for pesticide residue analysis and this method could meet the requirement of routine analysis of pesticide residues in peanuts.
HPLC-MS/MS / Peanut / Pesticide / Residues {{custom_keyword}} /
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