查询词典 heptachlor

Meanwhile, the insecticide barrage had been augmented by dieldrin, parathion, heptachlor, malathion and other fearful compounds many times stronger than DDT, all of which the government planned to distribute through the Department of Agriculture for public use and commercial manufacture.

此时，地特灵、拉松、布达、拉松以及其他比DDT更可怕数倍的合成农药使用量已经大量增加，全都源自政府规划，透过农业部散播给大众使用以及商业制造。

HCB and ∑DDTs were detected in 100 percent and 99.2 percent respectively of all soil samples, while the concentrations of Aldrin, Dieldrin, Endrin, Heptachlor and Mirex were below the detection limit.

2004年5月31日至6月8日采集了安徽省境内的长江流域、淮河流域、巢湖周边的119个土壤表层样品，利用ASE萃取技术，使用GC/MS方法测定了样品中的六氯苯、氯丹、滴滴涕类物质、艾氏剂、狄氏剂、异狄氏剂、七氯和灭蚁灵等有机氯杀虫剂的含量。

Objective A multiresidue method based on solid-phase extraction andgas chromatography with electron capture detector was developed for thesimultaneous determination of 15 pesticides (Dichlorvos, Dimethoate,Parathion-methyl, Malathion, Parathion, Fenpropathrin, Lambda-cyhalothrin,Cypermethrin,Esfenvalerate,Deltamethfin,Quintozene,Dieldrin,Heptachlor,α-Endosulfan,β-Endosulfan) in drinking water.

目的：建立同时检测饮用水中15种农药残留的固相萃取-气相色谱分析方法，所检测的农药包括5种有机磷：敌敌畏，乐果，甲基对硫磷，马拉硫磷，对硫磷；5种有机氯：五氯硝基苯，狄氏剂，环氧七氯，α-硫丹，β-硫丹；5种拟除虫菊酯：甲氰菊酯，三氟氯氰菊酯，氯氰菊酯，氰戊菊酯，溴氰菊酯。

Top soil samples were collected from Hebei province and the contents of heptachlor were measured.

在河北省境内采集207个表层土壤样品，测定其中的七氯含量。

Using heptachlor epoxide as interal standard, the linearity of 28 pesticides were good with 〓 in 0.99～1. 000, except phosphamdon with 〓 at 0.963. The RSD for most pesticide were below 10％.

采用该方法，以环氧七氯为内标，29种农药中28种农药的线性关系良好，〓在0.99～1.000之间（磷胺的〓为0.963），大部分农药的RSD0％。

Numerous microbial cultures convert heptachlor to its expoxide.

许多微生物培养基可以把七氯转化为它的环氧化物。

Among the special nine pollutants, however, eight of them, including Hexachlorobenzene, N-Nitrosodi-N-propylamine, 3,3-dichlorobenzidine, 2,4,6-trichlorophenol, 2,3,4,5,6-pentachlorophenol, indeno (1,2,3-cd) pyrene, 4,4'-DDT and Heptachlor were in need of concern while another chemical: dibenzanthracene be of special concern. The sources of these chemicals were discussed and some control strategies were suggested based on the risk assessment.

结果表明，有18种有机污染物超过了USEPA的标准浓度要求，其中9种物质具有一定的生态风险，其中六氯苯、N-亚硝基二正丙胺、3，3'-二氯联苯胺、2，4，6-三氯酚、五氯酚、茚并(1，2，3-cd)芘、4，4'-滴滴涕、七氯在内的8种化合物具有一定的风险，而多环芳烃二苯并蒽需要引起更高警惕；在此基础上探讨了这些化合物的来源及作用，并提出了相应的防治建议。

In addition, pesticides can also abnormal sperm, and lead to miscarriage, stillbirth, birth defects, such as benomyl, DBCP, methylmercury, such as epoxy heptachlor.

另外，农药也可使精子异常，而导致流产，死胎、新生儿缺陷，如苯菌灵、二溴氯丙烷、甲基汞、环氧七氯等。

Heptachlor epoxide was used as internal standard. Results The detection limit ranged from 0.2-15μgkg^(-1). The recoveries of most pesticides were good with the ranged of 70%-120% in 9 medicine crops.

结果 对48种中药材进行了检测；除敌敌畏、杀虫脒、磷丹及三唑磷外，其余农药的检测限都在0.2~15gkg^(-1)之间；以9种中药材为例检测，大部分农药的回收率在70%~120%之间。

Because the concentrations of heptachlor, aldrin, o, p-DDT, p, p'-DDE and p, p'-DDT in SPMD are lower than those in water, these contaminants are not suitable to be sampled by this SPMD. The results of field experiment done at the Liangshui river prove the feasibility of SPMD used in groundwater monitoring. But detailed work is needed to be done in order to explain some unusual field experiment results.

七氯、艾氏剂、o，p-DDT、p，p'-DDE以及p，p'-DDT组分在膜中的平衡浓度远小于它们在水中浓度，不适于用此种半透膜取样器进行富集；在凉水河岸边的野外实验结果也验证了半透膜装置监测地下水有机氯农药的可行性，但其个别组分的结果出现异常，需要在该地区进一步开展工作进行研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。