查询词典 reagent

When we added abstructing absorption reagent,the ruine d rate of permethrin on the surface of human skin was reduced.

结果：氯菊酯在人皮肤上的残留率因涂布部位不同而异；加入阻滞吸收剂可减少该药的衰减。

Two kinds of catalytic oxidations for naphthalene with Fenton reagent and POD catalyst were studied, and the results showed that there were some common points: Fe ion and OH radical all participated in two kinds of catalytic oxidations and α-naphthol was found.

通过Fenton试剂及POD催化H〓O〓与萘的反应过程分析，可以确定两种反应之间有一些相同点，它们是两种反应过程中均有Fe离子及·OH自由基参与，且反应过程中均有α萘酚生成。

In the course of Fenton reagent oxidating wastewater, to the COD removal rate of aqueous samples, the influence of three factors in the each level is not obvious.

Fenton试剂氧化废水中，3因素的各水平对水样COD去除率的影响不明显。

Chapter two is concerned with the syntheses and characterization of some chiral ligands and consists of relevant mechanism of reaction( for example, N anion acts as nucleophilic reagent and different nitriles act as reacting substance).

第二章讨论了若干手性配体的合成与结构，并包含了相关反应的机理探讨(例如N~-做为亲核试剂、不同的腈作为反应底物)。

Implement Reagent and volumetric solution preparation as relative SOP.

依据相关的SOP完成试剂和标准溶液的准备工作。

We killed some mice at the day 6th , the others were continue to expose to formaldehyde and observe their estrous cycle. HE staining was used to study the pathological changes happened in ovarian tissue. Uranium acetate and lead acetate double staining was used to study the ultrastructure of oocyte. E2 and LH level in blood serum was measured by radioimrnunoassay reagent kit.

第6d处死一批小鼠，用HE染色观察小鼠卵巢组织的病理改变，用醋酸铀—醋酸铅双重染色电镜下观察小鼠卵母细胞超微结构的损伤；用GSH测定试剂盒测定小鼠卵巢组织中的GSH含量；用E_2和LH放射免疫分析试剂盒分别测定小鼠血清中E_2及LH水平；采用超排卵法，计数超排卵数并收集卵母细胞，于油镜下观察生殖细胞遗传物质的损伤。

Copper reagent silver method ; colorimetric determination ; tungsten trioxide ; Arsenic

铜试剂银法；比色测定；三氧化钨；砷

A suitable reducing agent of the mixture of gibberellin, glucose and tin dichloride was used as a new color reagent for the determination of silicon content in water by silicomolybdic blue method.

采用赤霉素－葡萄糖－二氯化锡混合液作为钼蓝法中的新还原剂。

A large number of companies are producing high-quality reagent products, such as chloroform, ethanol, ammonium, potassium periodate, iodine, potassium iodide, stannous chloride, tin tablets octanol, hydrochloric acid and so on.

公司现生产大批优质试剂产品，如氯仿、无水乙醇、钼酸铵、高碘酸钾、碘、碘化钾、氯化亚锡、锡粒、正辛醇、盐酸等。

The results showed: when TLC solvent system was: chloroform - methanol - diethyl amine = 90:9:1, alkaloids from lotus leaves were well isolated, and five components were isolated and identified by spraying Dragendorff reagent. The optimal conditions of HPLC solvent system were: methanol- water - diethyl amine = 75:25:0.0125. Under the conditions, components of alkaloids from lotus leaves were separated very well, and ideal RP-HPLC peaks were obtained.5、Methods of High Speed Counter Current Chromatography and preparative High Performance Liquid Chromatography applied to identify and purify alkaloids from lotus leaves were set up. When solvent system of HSCCC was: chloroform - methanol - water (pH=4.00)= 4:3:2, speed of chromatogram was 700rpm, flow speed of the mobile phase was 2mL/min, four pure components relatively were attained by isolation and purification.

结果表明：薄层层析溶剂系统为氯仿：甲醇：二乙胺=90：9：1，使荷叶中的生物碱达到了较好的分离效果，并用改良的碘化铋钾试剂喷雾显色，共分离鉴别出了5种荷叶生物碱；分析型HPLC分析检测的较优溶剂系统为甲醇：水：二乙胺=75：25：0.0125，使荷叶生物碱的各个组分达到了基线分离，并获得了较好的峰形。5、建立了高速逆流色谱和制备型HPLC技术分离纯化荷叶生物碱的具体方法。H(来源：ABC46论文网www.abclunwen.com)SCCC法在溶剂系统为氯仿：甲醇：pH4.00的水=4：3：2，色谱仪转速为700rpm，流动相流速为2mL／min的条件下，分离纯化得到了4个纯度较高的化合物。

I will not give up and will not call you any more at the same time.

我不会放弃，同时我也不会在给你打电话了。

China is an uneven distribution of resources cross country.

摘要我国是一个资源分布不平横的国家。