CAJ | 학술논문

采用加速溶剂萃取法提取沉积物中的有机氯和多氯联苯，提取液用凝胶色谱法净化后用气相色谱－质谱法测定。方法在5．00μg ／L ～200μg ／L 范围内线性良好，当取样量为10．0 g 时，方法检出限为0．03μg ／kg ～0．37μg ／kg，空白样品2个质量比水平的加标回收率为70．8％～121％，测定结果的 RSD 为2．7％～11．5％。用该方法测定实际样品，结果12个抽检的沉积物样品中多氯联苯均未检出，9个样品中有机氯检出。
채용가속용제췌취법제취침적물중적유궤록화다록련분，제취액용응효색보법정화후용기상색보－질보법측정。방법재5．00μg ／L ～200μg ／L 범위내선성량호，당취양량위10．0 g 시，방법검출한위0．03μg ／kg ～0．37μg ／kg，공백양품2개질량비수평적가표회수솔위70．8％～121％，측정결과적 RSD 위2．7％～11．5％。용해방법측정실제양품，결과12개추검적침적물양품중다록련분균미검출，9개양품중유궤록검출。
An method for determination of organochlorine pesticides(OCPs)and polychlorinated biphenyls (PCBs)in sediments was established by using accelerated solvent extraction(ASE),followed by GPC clean-up and gas chromatography-mass spectrometry.The results demonstrated that the linear is good in the 5.00 μg /L ~200 μg /L,recovery was tested by addition of the mixed standards at two different concentration levels,and the results of recovery were found in the range of 70.8% ~1 21 %,the relative standard deviation (RSD)were ranged from 2.7% to 1 1 .5%.Detection limits of the method for OCPs and PCBs were in the range of 0.03 μg /kg ~0.37 μg /kg.Actual samples were measured by current method,and the results showed that PCBs were not detected in the 1 2 sediment samples,but OCPs were detected in 9 of these samples.