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对不同出售点,采集25个样品,进行有机氯含量测定.样品分属全国17个厂家的18种牌号、产地有湖南、贵州、广东、江西、四川、辽宁各省和上海市.样品经处理后,用岛津 Gc—9A 型气相色谱仪(用电子捕获鉴定器)和 C—R6A 型色谱处理机,在一定的色谱条件下测定.其测定结果见以下两表.讨论一、25个样品中六六六的检出率为64%,DDT的检出率为24%,18%的样品未检出。六六六,DDT各异构体的检出率,以六六六—δ占52%为最高,而六六六—β和 P,PDDT 均未检出,六六六—γ只在个别样品中存在,其他的异构体检出率在10%～25%之间.
Twenty-five samples were collected for determination of organochlorine content at different points of sale.The samples belonged to 18 grades from 17 manufacturers in China and originated from Hunan, Guizhou, Guangdong, Jiangxi, Sichuan, Liaoning provinces and Shanghai. , With Shimadzu Gc-9A gas chromatograph (with electronic capture detector) and C-R6A chromatographic processing machine under certain chromatographic conditions were measured The results are shown in the following two tables to discuss a, 25 samples The detection rate of 666 was 64%, the detection rate of DDT was 24%, and 18% of the samples were not detected. The detection rate of each isomer of DDT was highest at 52% of the six-six-six-delta, while no hexahydro-6β-and P-PDDT were detected. The six-six- In the presence of other isomer detection rate of 10% to 25%.