کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1208917 | 965323 | 2006 | 6 صفحه PDF | دانلود رایگان |
A method for the determination of Thiamethoxam in bee samples was set up by means of high performance liquid chromatography with an electrochemical detector and post-column photochemical reactor (HPLC–hν–ED). Analytical method was based on a rapid sample extraction procedure with acetone, followed by chromatographic separation into a C18-RP column isocratically operated by 60 mM phosphate buffer/acetonitrile (75/25) mobile phase at pH 2.7. A photochemical reactor was used as a tool to verify and eventually quantify the presence of Thiamethoxam in the samples by distinguishing it from interference contribution. Detection was performed with a potential of 880 mV after a photoactivation with a 254 nm light. The least detectable dose was 0.002 mg kg−1. Recovery rates ranged between 59.88 and 71.62%.
Journal: Journal of Chromatography A - Volume 1123, Issue 1, 4 August 2006, Pages 60–65