Bong R L
J Assoc Off Anal Chem. 1975 May;58(3):557-61.
A procedure is described for the isolation and cleanup of hexachlorobenzene (HCB) and mirex in fats and oils for gas-liquid chromatographic (GLC) analysis. The fat or oil is distributed on unactivated Florisil, and the HCB and mirex are eluted with acetonitrile. The pesticides are then partitioned into petroleum ether. Elution through activated Florisil with methylene chloride-hexane (20+80) is used for the final cleanup. HCB and mirex are then measured by GLC, using the appropriate electron capture conditions with a 15% OV-210 column for HCB and a 3% OV-101 column for mirex. The method demonstrates recoveries greater than 90% for HCB and mirex and allows screening at or below the 0.1 ppm level in fats with a 3 mg fat injection.
本文描述了一种用于分离和净化油脂中六氯苯（HCB）和灭蚁灵以进行气液色谱（GLC）分析的方法。将脂肪或油分散在未活化的弗罗里硅土上，用乙腈洗脱HCB和灭蚁灵。然后将农药分配到石油醚中。用二氯甲烷 - 己烷（20 + 80）通过活化的弗罗里硅土进行洗脱用于最终净化。然后使用GLC测量HCB和灭蚁灵，对于HCB使用适当的电子捕获条件，采用15% OV - 210柱，对于灭蚁灵采用3% OV - 101柱。该方法表明HCB和灭蚁灵的回收率大于90%，并且在注入3mg脂肪的情况下能够对脂肪中0.1ppm及以下水平进行筛查。
