• 这种变化虽然不同于滴定时石蕊突然转变相差不远了。

    It was not quite the sudden shift from litmus red to blue of an acid being neutralised by an alkali, but it was not far off.

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  • 本文介绍一种简单、方便、快捷测定胶体微粒表面积、粒径的方法——滴定,适合工厂及研究使用

    The measure method of specific surface area and microparticle diameter of colloidal silica by titration with sodium hydroxide was introduced in this paper, which is a simple method.

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  • 建立了一种滴定法有效生物定量测定方法并比较测定了花椒两个品种花椒和青花椒中生物的含量。

    A method was established to detect the alkaloids from Zanthoxylum. Comparison of the con - cent of two different variety Zanthoxylum alkaloids was studied by acid - base titration.

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  • 论述废旧腈纶毛线常压水解条件下采用滴定分析方法测定氰基转化率,讨论了反应时间、温度、投料比等因素对水解反应影响。

    The arthor elaborates the measurement of the cyanogen group inversion rate of waste PAN yarn using acidic titrimetry under the condition of constant pressure alkali gydrolyzation.

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  • 乙酸乙醇溶液滴定溶液浓度。

    Titrate the mixed solution with ethanol solution of acetic acid.

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  • 采用高氯酸非水滴定分析中的甲酸代替了误差较大高锰酸钾法。

    Sodium formate from waste alkali liquor was analyzed by perchloric acid nonaqueous titration instead of potassium permanganate method, which caused larger deviation.

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  • 目的比较滴定紫外分光光度(U V)法测定附子生物差异探讨适宜附子总生物的含量测定方法。

    Objective To analyze the differences in the determination of total alkaloids from Radix Aconiti Lateralis Preparata by Titration and UV, and investigate the suitable determination method.

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  • 根据公式弱酸滴定范围影响因素进行探讨。

    The influencing factors for the jumping range of weak acid(base) titration were discussed by the formulas.

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  • 操作滴定拇指食指

    The basic buret is usually operated bY thumb and forefinger.

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  • 示波极谱滴定测定有机盐酸盐类药物,快速准确检测最终结果节省药品

    The Determination method of organic basis of hydrochloride by oscillopolarographic titration is quick, exact, easy to observe the final result and can save materials.

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  • 非水电位滴定元素分析法测出了及其各个组分、强含量氮含量和非氮含量。

    The strongly basic, weakly basic and non-basic nitrogen contents and acid values of the residues and their fractions were determined with non-aqueous potentiometric titrations and elementary analysis.

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  • 论文实验中,利用强酸滴定混合获得环烷滴定曲线,并据此确定环烷酸一元弱酸;

    In this paper, the titration curve of potassium naphthenate is acquired by using strong acid for titrating mixed base.

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  • 目前山莨菪质控方法高氯醚滴定酸性染料比色法,二者灵敏度和选择性方面存在不足

    The currently used quality control methods for anisodamine are perchloric titrimetry and colorimetry. They are insufficient in sensitivity and selectivity.

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  • 目前山莨菪质控方法高氯醚滴定酸性染料比色法,二者灵敏度和选择性方面存在不足

    The currently used quality control methods for anisodamine are perchloric titrimetry and colorimetry. They are insufficient in sensitivity and selectivity.

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