Wang J H, Xu Q, Jiao K
Laboratory of Food Inspection, Shandong Import and Export Commodity Inspection Bureau, Qingdao, China.
J Chromatogr A. 1998 Aug 28;818(1):138-43. doi: 10.1016/s0021-9673(98)00498-1.
An approach using supercritical fluid extraction (SFE) followed by clean-up with a AgNO3-loaded Florisil column was utilized for the analysis of four organochlorine pesticides (OCPs) in garlic. The organic sulfur extracted by SFE from garlic was removed by AgNO3 allowing OCPs to be determined by GC-electron-capture detection without interferences. All OCPs recoveries ranged from 85.0% to 110.0% and relative standard deviations were in the range of 3.9-7.2% for spiked samples. The described method may be used to analyze OCPs in garlic on a routine basis.
采用超临界流体萃取（SFE），随后用载有硝酸银的弗罗里硅土柱进行净化的方法，用于分析大蒜中的四种有机氯农药（OCPs）。通过SFE从大蒜中萃取的有机硫被硝酸银去除，使得OCPs能够通过气相色谱 - 电子捕获检测进行测定而不受干扰。对于加标样品，所有OCPs的回收率在85.0%至110.0%之间，相对标准偏差在3.9 - 7.2%范围内。所描述的方法可用于常规分析大蒜中的OCPs。
