溴化容量法
English translation: Volumetric analysis after distillation and bromination
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| 10:33 May 2, 2008 |
| Chinese to English translations [PRO] Science - Chemistry; Chem Sci/Eng | |||||||
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|  Selected response from: ysun United States Local time: 16:22 | ||||||
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32 mins confidence: 
brominating volumetric method Explanation: http://dict.cnki.net/dict_result.aspx?searchword=brominating... brominating volumetric method 溴化容量法(1) The determination of m - cresol content by brominating volumetric method was investigated. The optimum analysis conditions are as follows: reaction temperature 18 - 30℃, reaction time 8 - 10 min, reaction acidity 1.0 - 1.5 mol/L, bromine excess 50 %-100 % . The method is simple and fast. It has good precision and high accuracy. Either to high - concentration sample or low - concentration sample, it can get satisfactory results. Its low detection limit is 0.5% (5 mg/L). 探讨了间甲酚含量的容量分析方法。通过试验确定了利用溴化容量法测定间甲酚含量的最佳分析条件:反应温度为18-30℃、溴化反应时间为8-10 min、溴化反应的酸度为1.0-1.5 mol/L、溴过量50％-100％。此法简便快速,精密度好,准确度高,对高浓度和低浓度的试样均能获得满意的结果,检出下限为0.5％(5 mg/L)。 -------------------------------------------------- Note added at 47 mins (2008-05-02 11:21:25 GMT) -------------------------------------------------- It seems to be a literal translation that is not well accepted in native English texts. How about restructuring it to fit in your context? volumetric determination of ... by bromination http://www.google.com/search?hl=en&q=volumetric determinatio... Direct volumetric determination of sulphonamides by bromination ...Direct Volumetric Determination of Sulphonamides. by Bromination with N-Bromosuccinimide. M. Gopal and U. C. Pande. Dept. of Chemistry, University of ... www.springerlink.com/index/NN373117U5637517.pdf |
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1 hr confidence:
| 蒸馏后溴化容量法 after-distillation with bromine method Explanation: 蒸馏后溴化容量法——after-distillation with bromine method -------------------------------------------------- Note added at 1 hr (2008-05-02 11:41:23 GMT) -------------------------------------------------- 医学词典上查到的，供参考。 |
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7 hrs confidence:
titration of distilled phenol with bromine Language variant: titration = volumetric analysis = volumetric method Explanation: volumetric analysis of distilled phenol with bromine or titration of (distilled) phenol with bromine Journal of Hazardous Materials : Synthetic wastewater was prepared by distilling phenol to obtain pure phenol and dissolving it ... linkinghub.elsevier.com/retrieve/pii/S030438940600015X - Similar pages phenol is distilled to remove other contaminants that may interfere with reaction of phenol w/ bromine. After it was distilled, bromination solution (bromine) is added until a specific color is achieve, The amount of brominating solution added is the amount of phenol being determined. A n CTitration of Phenol with Bromine,. By. C. WEINREB. and. S. BONDI. (Monatsh. Chem.,. 6,. 506--510).-Benedikt. has pointed out. (Wiert. Akad. Ber., ... www.rsc.org/delivery/_ArticleLinking/DisplayArticleForFree.... - Similar pages More results from www.rsc.org » Titration - Wikipedia, the free encyclopediaTitration is a common laboratory method of quantitative/chemical analysis that ... play a key role in titration, it is also known as volumetric analysis. ... en.wikipedia.org/wiki/Titration - 55k - Cached - Similar pages |
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8 hrs confidence:
| 蒸馏后溴化容量法 Volumetric analysis after distillation and bromination Explanation: In more detail: Volumetric analysis (or titration) after distillation and bromination (of volatile phenolic compounds) See GB 7491-87 at http://www.sepa.gov.cn/image20010518/3470.pdf 水质 挥发酚的测定 蒸馏后溴化容量法 (IMO, the original English translation of the title is not a good one.) 2 原理 用蒸馏法使挥发性酚类化合物蒸馏出，并与干扰物质和固定剂分离。由于酚类比合物的挥发速度是随馏出液体积而变化，因此，馏出液体积必须与试样体积相等。 在含过量溴(由溴酸钾和溴化钾所产生)的溶液中，使酚与溴生成三溴酚，并进一步生成溴代三溴酚。在剩余的溴与碘化钾作用、释放出游离碘的同时，溴代三溴酚与碘化钾反应生成三溴酚和游离碘，用硫代硫酸钠溶液滴定释出的游离碘，并根据其消耗量，计算出挥发酚的含量。 -------------------------------------------------- Note added at 8 hrs (2008-05-02 19:26:56 GMT) -------------------------------------------------- Volumetric analysis (or titration) refers to 用硫代硫酸钠溶液滴定释出的游离碘. (容量滴定法) Reference: http://www.sepa.gov.cn/image20010518/3470.pdf |
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