They experimented with new reagents and succeeded.

"他们用做了验,获得了成功。"

As chemical reagent and corrodent of integrated plate.

作化学和集成电路电镀板的消蚀。

The trithiocarbonate moiety in turn, functions as a reversible addition fragmentation chain transfer (RAFT) agent.

线形三硫酯基团可以进一步作为RAFT控制其后的聚合反应。

Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.

以间硝基苯甲醛,乙酰乙酸乙酯,氨化为原料。

The color reaction of Cadion 2B with silver(I) was studied.

研究了镉2B固相萃取测定银的方法。

In stead of using butyl nitrite and absolute ethyl-ether as reagents,in an improved method,cupferron.

本文介绍了以亚硝酸乙酯代替亚硝酸丁酯,用氯苯代替无水乙醚合成铜铁的工艺。

The THFA product of hydrogenation in common pressure has been used in enzymatic reaction and expressed the same result as that of THFA from Sigma, the cost of reduction by hydroborates is lower.

常压氢化法的产品已用来代替进口作为酶促反应的辅酶，但硼氢化物还原法成本最低，能合成满足酶促反应要求的产物。

The catalyzed asymmetric synthesis was the effective method to prepare the optics active compounds, the pentamethide obtaines the widespread application as the reagent or the catalyst in this domain.

催化不对称合成是制备光学活性化合物的有效方法，金属有机化合物作为或催化在这一领域得到了广泛的应用。

This paper intends to report three experimentally simple preparations of naphthoquinone, hydroquinone and the corresponding mixed quinhydrone,all redox chemistry being carried out in the solid state.

报导了通过固体氧化还原作用以制取α-萘醌,氢醌以及对应的醌氢醌,所有反应均在固体状态下进行.

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化，分别催化各类硅或酸酐对氮杂环丙烷化合物的开环。

Abstract:Objective To discuss the biurea method for determination of total protein in serum of fat emulsion specimens with double reagents on the automated biochemical analyzer.

目的探讨缩脲法在全自动生化仪中直接测定脂肪乳浊标本血清总蛋白。

Pyridine can react with halogens,nitronium fluoroborate, sulfur trioxide, boranes and chromium trioxide to form some useful organic reagents which are introduced briefly in the paper.

吡啶可以和卤素、硝基四氟化硼盐、三氧化硫、硼烷及三氧化铬反应，形成一些有用的有机。

Pyrazole has been prepared through the dehydrogenation of 2 pyrazoline in which catalytic amonts of sodium iodide acts as dehydrogenation agent in sulfuric acid.

在硫酸中用碘化钠(催化量)作脱氢使2吡唑啉脱氢制备吡唑。

The selective oxidation of ethers by chromic reagent, peroxide, nitric acid, oxygen and ozonide, as well as the ethers anodic oxidation are particularly introduced.

主要介绍了铬(Ⅵ)类,过氧化物、硝酸、氧和臭氧等各类氧化对醚选择性氧化以及醚的阳极电氧化研究状况。

The protein chip kit,ELISA kit and confirmatory methods were used to detect veterinary drug residues(enrofloxacin clenbuterol,streptomycin and sulfadimidine) in pig and chicken tissues.

通过对猪和鸡组织样品中的克仑特罗、链霉素等兽药的检测,比较了蛋白芯片检测盒、ELISA检测盒和确证方法在兽药残留检测中的应用。

This article described how to determine the content of chloride in the industry potassium hydroxide with the mercuric thiocyanide spectrophotometric method .

建立了用硫氰酸汞分光光度法测定工业氢氧化钾中氯化物含量的方法。该方法简便、快捷,样品和用量小,干扰因素少,测定范围大。

Order for effects of these factors on the putridity of cuttings was given.Four composite patterns of lower infective disease rate were obtained.

分析还表明土壤因素对保加利亚玫瑰嫩枝扦插腐烂病影响最大，其次是插穗因素和浸穗，并据此提出感病率较低的4种组合类型。

PTFE fiber has good corrosion resistance, low friction factor, nonflame, strong acid and strong alkali resistance, high temperature and low temperature resistance.

PTFE纤维具有优良的耐腐蚀性,低摩擦因数,不燃,能耐强酸、强碱、强氧化等强腐蚀性或溶,耐高、低温性能优良。

Thanks to all the staff, SINNOWA has developed international-level fully automatic clinical chemistry analyzer, Coagulometer, Microplate Reader, Hematology Analyzer and diagnostic reagents.

在全体员工共同努力下，公司先后开发出达到国际先进水平的全自动生化分析仪、半自动生化分析仪、血液分析仪、血凝仪、酶标仪、多种诊断等系列产品。

119.0 g of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

119克环戊溴和19.4克镁在空气中或者四氢呋喃中加入环戊格林尼亚作发生反应。