Determination of 18 organophosphate pesticide residues in Flos Lonicerae / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To establish an analysical method for the quantitative determination of 18 kinds of organophosphate pesticide residues in Flos Lonicerae.</p><p><b>METHOD</b>The pesticides in samples were extracted with acetone by Ultrasonic wave Assistant Extraction (UAE), purified by Solid-Phase Extraction (SPE). Using PFPD detecter gas chromatography with HP-1701 column.</p><p><b>RESULT AND CONCLUSION</b>All 18 pesticides were separated well in 30 minutes. The detection limits was 4.0-18.0 microg x kg(-1). The range of recovery and RSD were 83.64%-88.65% and 2.8%-6.0%, respectively. And it met the requirements of pesticide multi-residues analysis.</p>