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Mainly engaged in fine chemicals, chemical reagents precious metals, silver nitrate, the acid chloride, potassium cyanide-gold, Sulfite the salt, molecular Silver, silver, industrial ethanol, chemical reagents sulfuric acid, hydrochloric acid, nitric acid, ethanol and 95 percent ethanol and chemical reagents and other electronic products research and production.

主要从事精细化工,贵金属化学试剂,硝酸银,氯金酸,氰化亚金钾,亚硫酸金盐,分子银浆,银粉,工业无水乙醇,化学试剂硫酸,盐酸,硝酸,无水乙醇,95%乙醇等电子和化学试剂产品研究与生产。

With characters of phase diagram, simplex lattice method and single factor alternative method were used to optimize formulation of microemulsion respectively.

通过混合油相法确定了两个系统盐酸普萘洛尔微乳制剂的组成成分,并分别对两个系统进行相图绘制。

The chlorine dioxide disinfection solution was produced by the reaction between sodium chlorate and hydrochloric acid in chlorine dioxide generator.Filter membrane method was used to observe its efficacy in killing Escherichia coli in water and its influencing factors.

二氧化氯消毒液由二氧化氯发生器将氯酸钠与盐酸反应生成,采用滤膜法对其杀灭水中大肠杆菌的杀灭效果与影响因素进行了观察。

Results The major occupational hazards in the expansion project were sulfuric acid, hydrochloric acid, ammonia, sodium hydroxide, cyanide, nickel and its compounds, formaldehyde, organic solvent and noise. Many protective measures would be carried out in this expansion projects.

结果该建设项目在生产过程中存在的主要职业病危害因素有硫酸、盐酸、氨、氢氧化钠、氰化物、镍及其化合物、甲醛、有机溶剂、噪声等,根据有关规定企业拟采取相应的措施。

After the solution was kept in the dark for five minutes,chloroform was added into it to adsorb selenium formed by previous reaction,then iodine separated out was determined by sodium hyposulfite titration using starch as the indicator,at last the content of selenium dioxide in the sample was foun.

在溶有二氧化硒的0.4~0.5mol/L盐酸介质中,加入过量的碘化钾,于暗处放置5min后,加入三氧甲烷吸附反应生成的硒,以淀粉为指示剂,用硫代硫酸钠标准溶液滴定析出的碘,测得二氧化硒的含量。

The main products of the plant are as follows:liquid alkali,hydrochloric,chlorinated polyethylene,High purity chlorinated polyethylene,furfuralcohol,layred crystal sodium metasilicate,hight purity dimethyl carbonate,propanedilo.

主要产品有:烧碱、液氯、盐酸、氯化聚乙烯、高氯化聚乙烯、糠醇、层层状结晶硅酸钠、高纯碳酸二甲酯和丙二醇。

The samples were dissolved in hydrochloric acid and nitric acid with lower temperature. The stibium content was directly determined by atomic absorption spectrometry.

合金以盐酸-硝酸混合酸低温溶解,用原子吸收光谱法直接测定合金中锑的含量。

Lead, arsenic, stibium and bismuth were determined by inductively coupled plasma atomic emission spectrometry in hydrochloric acid medium.

铜精矿经硝酸缓慢溶解,在氨性溶液中,以氢氧化铁和氢氧化镧作载体一次共沉淀铅、砷、锑和铋,并与铜等元素分离,在盐酸介质中用电感耦合等离子体原子发射光谱法测定铜精矿中的铅、砷、锑、铋杂质元素。

Results Three kinds of veterinary drugs (erramycin,tetracycline,stilboestrol)were detected in the raw meat.The detection rate of terramycin was 5.13%,and the detection rate of stilboestrol and tetracycline was 2.56% and exceeded the national standards.However,aureomycin and hydroxymethyl tertbutyladrenergics were not detected.

结果 共检测出3种兽药(土霉素、四环素和己烯雌酚)残留,金霉素和盐酸克伦特罗未检出;检出率分别为土霉素5.13%,四环素、己烯雌酚为2.56%;残留量均超出中国相应标准。

Results: Cortex Phellodendri by the microscopic characteristics of the stone cell number and Berberine content; both significantly related to each other.

结果:得到了黄柏药材的石细胞显微特征数及盐酸小檗碱含量;二者有显著的相关性。

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