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- Keywords diphenyl carbazide;spectrophotometry;zircon concentrate;chromium; 二苯基碳酰二肼;分光光度法;锆石精矿;铬;
- Total micro-amount chromium in water measured by diphenyl carbazide colorimetric method 用比色法测水中微量总铬
- Keywords waste brewer抯 yeast;Chromium-rich yeast;diphenyl carbazide;spectrophotometry; 啤酒废酵母;富铬酵母;二苯胺基脲;分光光度法;
- Keywords Long capillary cell absorption spectrometry;chromium;diphenyl carbazide; 长光程吸光光度法;铬;二苯碳酰二肼;
- Keywords diphenyl carbazide spectrophotometry organo mineral compound fertilizers chromium determination study; 二苯卡巴肼;分光光度法;有机-无机复混肥料;铬;测定;研究;
- Keywords Flow injection analysis;Spectrophotometry;Chromium;Diphenyl carbazide;Waste water; 流动注射分析;分光光度法;铬;二苯基碳酰二肼;废水;
- Keywords waste brewer's yeast;chromium -rich yeast;diphenyl carbazide;spectrophotometry; 啤酒废酵母;富铬酵母;二苯胺基脲;分光光度法;
- Keywords polypropylene;diphenyl carbazide;separation and concentration;AAS;silver; 聚丙烯;二苯氨基脲;分离富集;原子吸收光谱法;银;
- diphenyl carbazide 二苯卡巴肼,二苯肼基羰
- Diphenyl carbonate shows a typical vinyl ester effect. 碳酸二苯酯表现典型的乙烯的酯类的效应。
- Diphenyl carbonate shows a typical vinyl ester effect . 碳酸二苯酯表现典型的乙烯的酯类的效应。
- Diphenyl ether is used as solvent and azeotropied with water. 利用联苯醚作为溶剂,与体系的水分进行共沸回流,达到充分脱水的目的。
- Diphenyl carbonate(DPC) is an important intermediate in plastic industry. 碳酸二苯酯是重要的有机中间体,应用于塑料工业。
- Diphenyl thiourea is an important intermediate of medicine and dyestuff. 二苯硫脲是重要的医药和染料的中间体。
- Purification of diphenyl ether by crystallization without solvent is discussed. 用无溶剂结晶法纯制二苯醚,该方法具有高效、经济和洁净的特点。
- Diphenyl carbonate is an important intermediate in plastic industry. 碳酸二苯酯是重要的有机中间体,广泛应用于塑料工业。
- The MNDO semiempirical quantum chemistry method was used to study theconformation of diphenyl sulfide and diphenyl sulfoxide. 本文使用MNDO半经验量子化学方法对二苯硫醚和二苯亚砜的构象进行研究。
- Phenyl(or polyphenyl)substituted epoxides serve as excellent precursors to phenyl(or diphenyl)carbenes. 某些苯代(或多苯)环氧化物是制取带苯环(或二苯)碳烯的极好原料。
- The catalyst system and technics for oxidative carbonylation of phenol to diphenyl carbonate (DPC) has been studied. 针对苯酚氧化羰基化合成碳酸二苯酯(DPC)洁净化工过程用催化剂和工艺条件进行了较系统的研究。
- Curing shrinkage, temperature and curing enthalpy of benzoxazine based on diphenyl oxide resin were investigated. 研究了苯并口恶嗪二苯醚树脂固化时的体积收缩率、固化温度和固化焓变等。