monobasic 同基数的(0) 单碱的(0)   “monobasic”译为未确定词的双语例句      Methods The separation was performed on Kromasil 100A C18column(150 mm×4.60 mm,5 μm)the mobile phase was methanol-0.025 mol/L monobasic ammonium phosphate(15∶85)with flow rate of 1.0 ml/min.      方法采用HPLC,以Kromasil 100AC18(150 mm×4.60 mm,5μm)为分析柱,以甲醇-0.025 mol/L磷酸二氢铵(15∶85)为流动相; 短句来源      mobile phase:0.02 mol·L -1 monobasic sodium phosphate (NaH 2PO 4) solution (pH4.5) acetonitrile (95∶5);      0 .0 2mol·L-1磷酸二氢钠溶液 (pH4.5 ) 乙腈 (95∶5 )为流动相 ; 短句来源      mobile phase: acetonitrile∶0.05 mol/L ammonium phosphate monobasic∶36% acetic acid =28∶72∶0.5(V/V).      分析条件为:乙腈∶0.05 mol/L磷酸二氢铵溶液∶36%醋酸=28∶72∶0.5(V/V); 短句来源      Methods (1)The mobilephrase was 0.05mol/L monobasic potassium phosphate-methand-perchloric acid(850ml∶150ml∶20g) on C_ 18 column(4.6×250mm,5um);      方法(1)用C18键合硅胶柱(4.6mm×250mm,5μm),以0.05molL磷酸二氢钠(含磷酸2mlL)-甲醇-高氯酸(850ml∶150ml∶20g)为流动相[1]; 短句来源      The mobile phase was acetontrile-0.05mol/L potassium phossphate monobasic(adjusted to pH 3)-0.025mol/L sodium dodecyl sulfate(60:20:20) with a flow rate of 1 ml/min.      流动相:乙腈-0.05mol/L磷酸二氢钠(磷酸调pH至3.0)-0.025mol/L十二烷基硫酸钠(60:20:20); 短句来源 更多          相似匹配句对      Producing of Monobasic Potassium Phosphate from Potassium Chloride      氯化钾法制磷酸二氢钾 短句来源      Study on Primary Solution of Monobasic Constant Differential Equation      “一阶常微分方程的初等解法”研究 短句来源 查询“monobasic”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   monobasic The experimental data on the density, thermal conductivity, and viscosity of binary and ternary hydrocarbons and monobasic alcohols are generalized at high parameters of state. 例句来源       Approximation of Potentiometric Titration Curves by Logarithmic Functions: Titration of a Mixture of Two Monobasic Acids 例句来源       The approximation of titration curves by logarithmic functions was described for the titration of a mixture of two monobasic acids. 例句来源       Two approaches to processing titration curves of dibasic acids based on the use of sets of equations characteristic for dibasic acids and for a mixture of two monobasic acids were compared. 例句来源       Complexation of Tc(CO)3+·aq with Anions of Monobasic Carboxylic Acids in Aqueous Solutions: A 99Tc NMR Study 例句来源       更多                    Although esterification reaction betweea monobasic acids and mouohydric alcohols is a well-known chemical reaction,on which various authors,such as Goldschmidt,Hinshelwood,Flory and others,have done much work,but the mechanism of esterification and the order of the reaction in the absence or presence of a foreign acid remain unclarified.For this purpose we have studied the kineties of esterification reactions between laurie acid and normal octyl alcohol with equi-or non-eqnimolar quantity ratios in th...             本文建议一种新的酯化反应的氢离子催化机构,这机构与公认的酯化反应的氢离子催化机构的区别在于氢离子的来源和氢离子参与反应的详细历程,肯定氢离子不仅由外酸供给,而且也可由单元酸本身电离得来,另外,单元酸和单元醇都可作为氢离子的载体。酯化反应的功力学方程与单元酸和单元醇起始的克分子比有密切关系,应由(3)式表示。当酸与醇以等克分子比起反应,在无外酸作催化剂时,酯化反应是2(1/2)级反应;若有外酸作催化剂,当外酸的量加得适当多,由单元酸本身供给的氢离子的贡献可以忽略时,是二级反应;当外酸的量加得少,由单元酸本身供给的氢离子的贡献不可以忽略时,它不再是二级反应。当酸与醇以不等克分子比起反应,动力学方程比较复杂,实验结果亦与理论相一致。这样,我们用同一反应机构解释所有不同克分子比的单元酸与单元醇的酯化反应的实验数据。 文摘来源          On the three-dimensional polyesterffication reactions between polybasic acids and polyhydric alcohols,various authors,such as Kienle,Flory,Stockmayer and others,have done much work.But they did not work on dot ailed kinetics,and their observed gel points were also not in conformity with the theoretical values. Basing on our experimental results of three-dimensional polyesterification re-actions between succinic acid-pentaerythritol;adipic acid-pentaerythritol;sebacic acid-pentaerythritol;and adipic acid-gly...             多元酸与多元醇的三向聚酯反应,象单元酸与单元醇的酯化反应一样,是氢离子催化机构,并且,动力学方程与酸基和醇基的起始克分子比有密切关系。我们首先用严格的动力学方程处理三向聚酯反应的实验数据。当酸基与醇基以等克分子比起反应,在无外酸存在时,三向聚酯反应是2(1/2)级反应。若有外酸作催化剂,如氢离子由外酸和多元两方面供给,三向聚酯反应不是二级反应,只有当外酸的量加到适当多,多元酸本身供给的氢离子可以忽略不计时,才是二级反应。当酸基与酸基以不等克分子比反应,我们的实验结果亦与理论一致。根据我们的实验结果,丙三醇中的伯羟基和仲羟基的反应能力相差很小,可以用同一反应速度常数处理实验数据。不论酸基与醇基是等或不等克分子比的丁二酸与异戊四醇,己二酸与异戊四醇,癸二酸与异戊四醇,以及己二酸与丙三醇在不同温度,有无外酸作催化剂,和有无间甲酚作溶剂时的三向聚酯反应,实测的凝膠点,都与计算值很相近(在±1%范国内)。并且,用实验证明凝膠点只与起始的多元酸的羧基与多元醇的羟基的克分子比,以及与其官能团的数目有关,与反应温度,有无催化剂和溶剂存在,催化剂的量,以及酸和醇的种类无关。同时也指出 Stockmayer 和 Flory 等实... 文摘来源          Initial velocity of the reaction of chromic ion with sodium hydrogenglutamate was determined at four different temperatures. Results indicate that the reaction proceeded according to two different types of mechanisms,that is, S_N1 and S_N2, and, therefore, the order of reaction with respect to glutamate-ion was fractional. The order of reaction with respect to chromium ion is 1. Owing to hydrolytic reaction, chromic ion formed basic ion readily and, therefore, concentration of hydrogen ion had a marked infl...             本文用分光光度法,在不同溫度測定鉻离子和谷氨酸根离子反应的初速。結果証明取代鉻离子的水分子是依两种机制进行,即S_N1和S_N2,故谷氨酸的反应級数为分数。反应对鉻离子为一級,但由於水合鉻离子有水介而形成碱式离子的作用,故氫离子濃度对於反应速度有显著的影响,这是因为各式的鉻离子有不同的反应速度常数。在25℃时簡单鉻离子、一碱式和二碱式鉻离子的反应比速常数依次为7.8×10~(-2),0.2和115克分子/分。根据在不同溫度的比速常数,求得这三种离子取代反应的活化能依次为30.8,12.9,和20.7千卡。 文摘来源   << 更多相关文摘         相关查询: monobasic acid monobasic multinomial monobasic alcohol monobasic weak acid sebacic monobasic amine potassium phosphate monobasic monobasic ammonium phosphate hexahydroxy monobasic acid calcium phosphate monobasic monobasic potassium phosphatenf monobasic sodium phosphateusp monobasic calcium phosphate  对查询结果不满意

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