查询词典 bromate

Methods Ascorbic acid was determined by inhibition kinetic spectrophotometric method, which was based on the inhibition effect of ascorbic acid on the nitrite catalyzed oxidation of xylenol orange by potassium bromate in dilute sulfuric acid medium.

在稀硫酸介质中，利用抗坏血酸对亚硝酸根催化溴酸钾氧化二甲酚橙的阻抑作用，用阻抑动力学光度法测定抗坏血酸。

A comparison of three chemical analytical methods-gravimetric method of barbituric acid, hydroxylamine hydrochloride method and bro-mide-bromate method-for determination of furfural content was studied.

测定糠醛含量的方法很多，日前同际标准化组织和各国的糠醛标准检验方法均采用化学法，成品糠醛内含有各种微量的有机杂质，据报道。

Bromate, perbromate, hypochlorite, perchlorate, ferrate,bismuthate, hydrogen peroxide, ozone, oxygen,hydroxyl radical, vanadate, ultraviolet light, bombcolorimetry, combinations of several oxidants andelectrochemical techniques. These approaches have notbeen suitable due to difficulties in reagent preparation,reagent stability, photosensitivity, low oxidationpotential, poor oxidation efficiency, expense, and userprotocols that proved too complex.

哈希实验室就试验过高锰酸盐，铈盐，过硫酸盐，过碘酸盐，碘酸盐，高铁酸盐，溴酸盐，过溴酸盐，过氧化氢，臭氧，氧，羟基，钒酸盐，紫外光，氧化弹，比色计，数种氧化剂与电化学技术的结合，这些方法已不适用，由于试剂难于制备，试剂稳定性，光敏感，低氧化电位，低氧化率，昂贵，用户证实太复杂方面的问题。

The method is based on the catalytic effect of NO~-_2 on oxidation of bromophenol red by potassium bromate in H_3PO_4 mediun.

基于稀磷酸介质中亚硝酸根催化溴酸钾氧化溴酚红的褪色反应，建立测定痕量亚硝酸根的新方法。

The structure image of polymers were observed by microscopy and scanning electron micrograph. Porogenic solvent mixture was of advantages in the process of forming porous structure polymers during its polymerization. Absorption charateristic of conventional SPE column was proved by catalytic-kinetic spectrophotometric determination of nitrite, which was a system of nitritre-potassium bromate -bromothymol bule.

通过SEM表征了原位聚合法制备的SPE微柱具有多孔网状结构，显微观察法与SEM表征法结合起来，证实在有致孔剂存在的条件下有利于原位聚合反应形成多孔网状结构的SPE微柱。

In the presence of acetic acid and polyethylene glycol, anthracene reacted with ammonium ceric nitrate and sodium bromate to form anthraquinone.

在醋酸、聚乙二醇存在下，蒽与硝酸铈铵和溴酸钠反应生成蒽醌，聚乙二醇作为相转移催化剂可以提高反应的选择性。

Professional sales companies operating bromide products: sodium bromide, sodium bromide, potassium bromide, potassium bromate, Tetrabromobisphenol A, Deca-BDE, ten PBDEs, DBDPE, hexabromodiphenyl Central dodecane, dibromo neopentyl glycol, neopentyl bromide three alcohols, three bromine phenol, octabromodiphenyl ether, brominated polystyrene, bromide, calcium bromide, dibromo succinic acid, dibromo-D ene glycol, bromide surfactants series: Dodecyl trimethyl ammonium bromide, tetradecyl trimethyl ammonium bromide, cetyltrimethyl ammonium bromide, octadecyl trimethyl ammonium bromide dodecyl trimethyl ammonium chloride, tetradecyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, octadecyl trimethyl ammonium chloride, tetrabutyl ammonium bromide wholesale sales: dimethylolpropionic acid, DL-malic acid, isophthalic acid PIA, glycolic acid, adipic acid.

公司专业经营销售溴化物系列产品：溴化钠、溴酸钠、溴化钾、溴酸钾、四溴双酚A、十溴二苯醚、十溴联苯醚、十溴二苯乙烷、六溴环十二烷、二溴新戊二醇、三溴新戊醇、三溴苯酚、八溴醚、溴化聚苯乙烯、溴化铵、溴化钙、二溴丁二酸、二溴丁烯二醇、溴化表面活性剂系列：十二烷基三甲基溴化铵、十四烷基三甲基溴化铵、十六烷基三甲基溴化铵、十八烷基三甲基溴化铵、十二烷基三甲基氯化铵、十四烷基三甲基氯化铵、十六烷基三甲基氯化铵、十八烷基三甲基氯化铵、四丁基溴化铵批发销售：二羟甲基丙酸、DL-苹果酸、间苯二甲酸 PIA、羟基乙酸、己二酸。

Decabromodiphenyl oxide,tetrabromobisphenol A,sodium bromide,sodium bromate,potassium bromide,ammonium bromide,calcium bromide,calcium chloride,magnesium chloride,sodium bicarbonate,magnesium hydroxide,manganese bromide,hydrobromic acid,salt etc.

提供产品：十溴二苯醚、四溴双酚A、溴化钠、溴酸钠、溴化钾、溴化铵、溴化钙、氯化钙、氯化镁、碳酸氢钠、氢氧化镁、溴化锰、氢溴酸、盐等。

The synthesis of dimethyl fumarate was studied from maleic anhydride and methanol with phospho molybdic acid as the catalyst and bromate as the isomerization catalyst by one-step in this short paper.

采用固体杂多酸磷钼酸为催化剂，溴酸盐为异构化剂，经顺酐一步合成了富马酸二甲酯，探讨了醇酐比、反应时间、催化剂的量、异构化剂的量以及异构化时间对合成DMF收率的影响，并确立了最佳反应条件。

The method has high sensitivit,it is based on the nitrite catalysed discoloring reaction of indigo carmine by potassium bromate in phosphoric acid medium.

基于磷酸介质中NO－2催化溴酸钾氧化靛红的褪色反应，建立了测定痕量NO－2的新方法，并讨论了其动力学条件。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。