I analysis of pesticide residues in fresh vegetables . testing parameters include methamidophos , isocarbophos , n - methyl carbamates , pyrethroids , and other organophosphorous pesticides . analysis of veterinary drug residues in raw milk I测试新鲜蔬菜所含残馀农药，包括是否含有甲胺磷水胺硫磷氨基甲酯类农药拟除虫菊酯类农药和其他有机磷类农药。
The testing services can be subdivided into two categories : analysis of pesticide residues in fresh vegetables . testing parameters include methamidophos , isocarbophos , n - methyl carbamates , pyrethroids , and other organophosphorous pesticides I测试新鲜蔬菜所含残馀农药，包括是否含有甲胺磷水胺硫磷氨基甲酯类农药拟除虫菊酯类农药和其他有机磷类农药。
Testing parameters include methamidophos , isocarbophos , other organophosphorus pesticides , pyrethroids and n - methyl carbamates . ( ii ) analysis of veterinary drug residues in raw milk . testing parameters include chloramphenicol , tetracyclines and sulfonamides 测试未经加工的奶类所含残馀禽畜药物，包括是否含有氯霉素、四环素类药物及磺胺类药物等。
Analysis of pesticide residues in fresh vegetables . testing parameters include methamidophos , isocarbophos , n - methyl carbamates , pyrethroids , and other organophosphorous pesticides . ( ii ) analysis of veterinary drug residues in raw milk 测试新鲜蔬菜所含残馀农药，包括是否含有甲胺磷、水胺硫磷、氨基甲酯类农药、拟除虫菊酯类农药和其他有机磷类农药。
Abstract : study on the synthesis of n - methyl carbamyl chloride underdifferent ratio of input materials and the yield of the termination products methyl isocyanate . the yield is raised from 81 . 89 % to 86 . 23 % 文摘:研究了在其它工艺条件不变的情况下，改变光气与甲胺的配比对合成n -甲氨基甲酰氯的影响。光气甲胺（摩尔比）由1 35 1降至1 25 1 ，最终产物甲基异氰酸酯收率由81 89升高至86 23 。
Excitotoxicity , associated with stroke and neurodegeneration , is triggered primarily by massive ca2 + influx arising from overactivation of glutamate receptor channels of the n - methyl - d - aspartate ( nmda ) subtype . although approaches to treatment of these disorders with antagonists of nmda receptor ( nr ) have been testified to be effective in animal models , successful therapy in humans was limited by the severe side effects of complete nr blockade for their space window and time window 已有的nr受体拮抗剂或阻断剂均为人工合成的小分子药物，能弥散通过血脑屏障(空间窗过大) ，作用选择性低，病变脑区及非病变脑区都会受到影响，而且由于神经元可逆性损害的“时间窗”极短，人们难以适时使用有效的神经保护药物，这些均导致已有的药物难以进入临床。
Monofunctional alkylating agent n - methyl - n ' - nitro - n - nitrosoguanidine ( mnng ) is a widely spread environmental mutagen and carcinogen that targets dna and proteins to generate adducts . among the adducts , o6 - alkyl guanine is the predominant mutagenic lesion because of its mispairing properties , which can eventually lead to chromosomal aberrations , point mutations , and cell death . this lesion also appears to be involved in tumor initiation , particularly in gastric carcinogenesis 单功能烷化剂n -甲基- n -硝基- n -亚硝基胍( mnng )是一种在环境中广泛存在的化学诱变剂和致癌剂，它能和dna及蛋白质等生物大分子形成加合物( adduct ) ，其引起的与突变有关的主要dna损伤类型是o ~ 6 -甲基鸟嘌呤，这种损伤与肿瘤尤其是胃癌的发生密切相关。
The third - order nonlinear optical properties of two kinds of - conjugated polymer , polyaniline and poly - phenylene vinylene , were studied . using n - methyl - pyrrolidone ( nmp ) as solvent , we prepared pan / nmp solution and methyl - replaced pan / nmp solution . using chloroform as solvent , we prepared 2 - methoxy - 5 - butoxy - ppv / chloroform solution and 2 - methoxy - 5 - decoxy - ppv / chloroform solution 以n -甲基吡咯烷酮( nmp )为溶剂，制得pan nmp溶液和甲基取代pan nmp溶液；以氯仿为溶剂，制得2 -甲氧基5 -丁氧基取代ppv氯仿溶液和2 -甲氧基5 -癸氧基取代ppv氯仿溶液。
Cellulose products are commonly prepared through the well - known viscose process or the cuprammonium method . both these two methods have serious environmental pollution . the green nmmo process using n - methyl - morpholine - n - oxide ( nmmo ) as the direct solvent of cellulose can be used to prepare the biodegradable cellulose membranes with improved mechanical properties and controllable pores 90年代开发的nmmo工艺采用n -甲基吗啉- n -氧化物( nmmo )作为直接溶剂来溶解纤维素，利用该绿色工艺可以制备力学性能优越、可生物降解、微孔孔径易于控制的纤维素膜。
