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十六烷基三甲铵
相关语句
  ammonium cetyl trimethyl
     The Synthesis of Cyclohexanone By Ammonium Cetyl Trimethyl Bromide Catalysis
     溴化十六烷基三甲铵催化合成环己酮
短句来源
     This paper presented that cyclohexanone was synthesized by the oxidation of cyclohexanol,under the best reaction condition with phase transfer catalyst ammonium cetyl trimethyl bromide and sodium hydrochlorite as oxiddant.
     以溴化十六烷基三甲铵作为相转移催化剂,用次氯酸钠作为氧化剂,在适当的反应条件下,氧化环己醇合成环己酮.
短句来源
  “十六烷基三甲铵”译为未确定词的双语例句
     The Study and Application of Eosiny NaClO-CTMAB-H_2O_2-Ti(Ⅳ) Chemiluminescence System
     曙红-NaClO-溴化十六烷基三甲铵-H_2O_2-Ti(Ⅳ)化学发光新体系的研究及应用
短句来源
     In the prescence of cetyltrimethyl ammonium bromide(CTMAB), the detection limit is 4.0×10 -9 mol·L -1 , the linear range is 4.2×10 -9 mol·L -1 ~3.8×10 -6 mol·L -1 . This method has been successfully applied to the determination of estradiol benzoate in injection with satisfactory results.
     在表面活性剂溴化十六烷基三甲铵(CTMAB)存在下,测定下限为4.0×10-9mol·L-1,线性范围为4.2×10-9~3.8×10-6mol·L-1。 本法应用于样品中苯甲酸雌二醇的测定,结果满意。
短句来源
     Determination of trace bismuth by inhibition discoloring spectrophotometry for sensitized reaction of cetyltrimethylammonium bromide (CTMAB) was studied. The apparent activation energy E of this discoloration reacti on is 27. 94 kJ/mol and the rate constan K is 2.93 × 10-2/s.
     本文研究了溴化十六烷基三甲铵(CTMAB)增敏抑制-褪色光度法测定痕量铋(Ⅲ).该褪色反应的表现活化能E=27.94KJ/mol,速率常数K=2.93×10-2/s.
短句来源
     A new fluorometric method has been developed for the determination of trace zirconium,based on the fluorescence quenching effect of Zr(Ⅳ) 5′ nitro salicylfluorone(5′ N SAF) hexadecyltrimethylammonium bromide(CTMAB).
     本文基于Zr(Ⅳ)-5′-硝基-水杨基荧光酮(5′-N-SAF)-溴化十六烷基三甲铵(CTMAB)体系的荧光猝灭效应,提出一种测定微量锆的新荧光分析方法。
短句来源
     In the HOAc-NaOAc buffer solution at pH 4.02±0.02, Cr(Ⅲ) reacts with CAS and CTMAB to form a blue micellar complex with λ_(max)618nm, (logε5. 07).
     在pH4.02±0.02的HOAc-NaOAc缓冲液中,铬(III)与铬天青S及溴化十六烷基三甲铵形成一蓝色胶敏配合物,其λmax在618nm处,logε=5.07。
短句来源
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  相似匹配句对
     PHOTOMETRIC DETERMINATION OF CTMAB WITH THE REAGENT 2-HYDROXY-5-SULFOPHENYLAZO-BENZYLIDENEHYDRAZINO- 2′-CARBOXYBENZENE (HSPABHCB)
     光度法测定水中溴化十六烷基
短句来源
     The Synthesis of Cyclohexanone By Ammonium Cetyl Trimethyl Bromide Catalysis
     溴化十六烷基催化合成环己酮
短句来源
     Spectrophotometric Determination of Manganese with Phenylfluorone and Cetyltrimethylammonium Bromide
     以苯基荧光酮和溴化十六烷基分光光度法测定锰
短句来源
     The present article aims to introducing the author's method of modifying zeolites by placing hexade-cyltrimethylammonuium bromide (HDTMAB) surfactants.
     采用溴化十六烷基(HDTMAB)制备了改性沸石.
短句来源
     SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM WITH DIPHENYLCARBAZIDE AND CETYLTRIMETHYLAMMONIUM BROMIDE
     用二苯碳酰二肼和溴化十六烷基光度法测定钒
短句来源
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A spectrophotometric method for the determination of total rare earths (RE) and yttrium subgroup in microamounts is proposed, using chromazurols, 1.10-phenanthroline and cetyltrimethylam-monium bromide. The total RE is determined in a solution with pH 9.5 The limit of detection is 0.008 μg/ml. Interfernces from various ions are reported. The interference of Fe~(3+) and Al~(3+) is eliminated with hydroxylamine and sulfosalicylate respectively. The yttrium subgroup were determined in solution with pH 8.4. The...

A spectrophotometric method for the determination of total rare earths (RE) and yttrium subgroup in microamounts is proposed, using chromazurols, 1.10-phenanthroline and cetyltrimethylam-monium bromide. The total RE is determined in a solution with pH 9.5 The limit of detection is 0.008 μg/ml. Interfernces from various ions are reported. The interference of Fe~(3+) and Al~(3+) is eliminated with hydroxylamine and sulfosalicylate respectively. The yttrium subgroup were determined in solution with pH 8.4. The interferences of cerium group elemnts are eliminated by an addition of sodium bicarbonate. The method is accurate enough for practical purposes.

在原来试验研究稀土-铬天青S-邻菲罗啉-溴化十六烷基三甲铵四元络合物的显色反应的基础上,进一步研究改进了该体系,选择最适条件,既可以测定稀土总量,同时又可以测定钇组稀土分量。提出了应用此体系连续测定微量总稀土和钇组稀土(Sm-Lu、Y)的新分光光度法。测定稀土总量在pH9.5进行,选用适宜试剂用量,特别注意避免过量表面活性剂CTMAB.对La的退色、隐蔽作用,由于这种四元体系将异配位体络合物和胶束增溶络合物统一在一个多元络合物体系中,具有灵敏度高(ε>10~5),对比度大(△λ=220nm),选择性较好的特点,测定总稀土下限可达0.2μg/25ml。测量钇组稀土分量在pH8.4进行,并加入适量外加竞争配位体NaHCO_3,可不经分离直接测定混合稀土中的钇组稀土。

This paper makes a study of the three structurally related quaternary ammonium salts which contain the long chain alkyl group, namely, tetradecyltrimethylammonium bromide ( TTAB ) , cetyltrimethyl-ammonium bromide ( CTAB ) and stearyltrimeth-yl-ammonium bromide ( STAB ) .It also discusses the reaction of their synthesis and points out that this synthesis is very effective for accelerating the ripening of sugarcane.

本文研究合成三个结构有关的长碳链季铵盐:溴化十四烷基三甲铵(TTAB),溴化十六烷基三甲铵(CTAB)和溴化十八烷基三甲铵(STAB)并探讨其合成的反应条件.该类季铵盐对甘蔗有很好的增糖催熟效果.

This Paper points out the desirability of cetyltrimethyl-ammonium bromide as a good phase transfer catalyst in preparing dichlorocarbene, then discusses the reaction conditions.Thus, a high yield of 7, 7 -dichlorobicycles ( 4.1.0 ) heptane is obtained, which reaches as much as 79.8%.

实验中筛选出溴化十六烷基三甲铵为制备二氯卡宾的较好的相转移催化剂,并讨论了反应条件,提出了较佳的实验方案.

 
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