کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1242854 | 969648 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Coordination polymer adsorbent for matrix solid-phase dispersion extraction of pesticides during analysis of dehydrated Hyptis pectinata medicinal plant by GC/MS Coordination polymer adsorbent for matrix solid-phase dispersion extraction of pesticides during analysis of dehydrated Hyptis pectinata medicinal plant by GC/MS](/preview/png/1242854.png)
The coordination polymer [Zn(BDC)(H2O)2]n was tested for extraction of pyrimethanil, ametryn, dichlofluanid, tetraconazole, flumetralin, kresoxim-methyl and tebuconazole from the medicinal plant Hyptis pectinata, with analysis using gas chromatography–mass spectrometry in selected ion monitoring mode (GC/MS, SIM). Experiments carried out at different fortification levels (0.1, 0.5 and 1.0 μg g−1) resulted in recoveries in the range 73–97%, and RSD values were between 5 and 12% for the [Zn(BDC)(H2O)2]n sorbent. Detection and quantification limits ranged from 0.02 to 0.07 μg g−1 and from 0.05 to 0.1 μg g−1, respectively, for the different pesticides studied. The method developed was linear over the range tested (0.04–14.0 μg g−1), with correlation coefficients ranging from 0.9987 to 0.9998. Comparison between [Zn(BDC)(H2O)2]n and the commercial phase C18-bonded silica showed good performance of the [Zn(BDC)(H2O)2]n polymeric sorbent for the pesticides tested.
Journal: Talanta - Volume 83, Issue 2, 15 December 2010, Pages 631–636