求过了英语四级的帮我翻译下面的句子（自己翻译，不是用百度翻译和有道词典），好的必采纳，谢谢

Question

如题所述

Answer 1

在这些实验中所测试的农药是有机磷杀虫剂毒死蜱。毒死蜱是从西格玛安德里奇化学责任有限公司（法国的圣昆廷 - 法拉维耶）订购。 其他严格纯级的化学品亦来自西格玛安德里奇化学责任有限公司。以自来水作操控之用。

~~~~~~~~~纯人手翻译，欢迎采纳~~~~~~~~~

原文如下：
The pesticide tested in these experiments was organophosphorus insecticides chlorpyrifos. Chlorpyrifos was ordered from Sigma-Aldrich Chimie S.A.R.L. (Saint Quentin-Fallavier, France). Other chemicals of rigorously pure grade were also obtained from Sigma-Aldrich Chimie S.A.R.L. Tap water was used as a control.