• 写出高氯酸滴定硫酸奎尼丁滴定反应式计算滴定度

    Figure out the chemical reaction equation of Quinidine Sulfate with perchloric acid and the equivalent relationship.

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  • 写出亚硝酸钠滴定盐酸普鲁卡因滴定反应式计算滴定度

    Figure out the chemical reaction equation of Procaine Hydrochloride with sodium nitrite and the equivalent relationship.

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  • 约有80%发作中抗链球菌溶血素“O滴定250单位以上

    The antistreptolysin o titer was above 250 units in 80% of the cases examined.

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  • 滴定样品时终点确定10或者更高情况下。

    In titrating the specimen, determine the endpoint at a temperature of 10 or higher.

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  • 估计一下量,使用滴定确定终定位置确定。用这些计算误差传播而且观测值比较一下

    Estimate what you think the uncertainty is in weighing, using the buret, and in endpoint location. Do error propagation from these values and compare with the observed precision.

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  • 实验首先原料聚糖物理性质进行测定:采用酸碱指示剂滴定法测定壳聚糖的脱乙酰为83%,应用粘法测定其粘均分子量为十万左右。

    The first work of this paper is measuring physical properties of chitosan. Degree of deacetylation(DD)of chitosan determined by acid base titration is about 83%.

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  • 反应过程中应用滴定中和方法控制保证反应体系均一

    Titration or neutralization degree method is used to control the alkalinity and insures the uniform of reaction system.

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  • 用卡尔·容量滴定测定水分滴定终点捕捉正确与否决定分析精确

    For moisture meters based on Karl Fisher capacitance titrimetry, the accuracy of measurement is dependent on capturing correct end point.

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  • 结果表明采用滴定曲线微分曲线确定终点,测定结果的重复性准确较大提高

    The results shows that the repeatability and accuracy are both better than before by using the titration curve or differential curve to determine the destinations.

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  • 目的探讨滴定测定盐酸丁卡因注射液含量采用不同灵敏含量测定影响

    Objective: to evaluate the effect of instrument sensitivity on the concentration determination of tetracaine hydrochloride injection using dead - stop titration method.

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  • 滴定法测定金矿石中贵金属金实例进行不确定评定

    The uncertainty of gold content determined with hydroquinone titration has been evaluated in this example.

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  • 由于妥布霉素固体颗粒常用滴定溶剂中的溶解不大,采用常规的卡氏容量难以快速精确的确定含量

    As for the poor solubility of tobramycin crystalline product in working medium used in volumetric Karl Fischer titration, two new methods for the water content determination were investigated.

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  • 采用溴代十六烷基吡啶滴定时,只有阴离子大于30%时才可以准确测出样品阴离子

    The exact results are obtained when the anion degree of polyacrylamide is bigger than 30% by the titration of cetyl pyridine bromide.

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  • 滴定分析分析化学重要部分对于结果准确要求很严格的。

    Chemical analysis of titration analysis is an important part of the results of the accuracy of its requirements are demanding.

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  • 估计一下量,使用滴定确定终定位置的不确定

    Mean. Estimate what you think the uncertainty is in weighing, using the buret, and in endpoint location.

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  • 采用直观因果,对EDTA滴定测定水中的不确定来源及其测量不确定的影响进行分析

    Making use of the cause and effect diagram to analyse the sources and influences of uncertainty in determination of total hardness in water by EDTA titrimetric method was introduced.

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  • 采用滴定法测定基团贡献法估算酚酞基溶解参数

    The solubility parameter of phenolphthalein poly (ether sulfone) (PES-C) was determinated by using turbidity titration method, and estimated by using group contribution method.

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  • 比较滴定滴定结果,确定了两滴定分析方法通过精密准确试验证明方法可靠

    The two steps titration method has been set up through its comparison with the single step one. The method so adopted shows reliable through its precision and accuracy tests.

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  • 目的探讨加入滴定标准溶液体积酸碱电位滴定准确影响

    Objective: Adding two titrant standard solution volumes affecting acid base double point potentiometric method accuracy are discussed.

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  • 采用高温催化-库仑滴定测定植物叶片中的硫含量相对标准偏差为1.5%,准确为99.7%。

    The sulfur content in Plant leaf is determined by high temperature catalysis-coulomb titration with the RSD is 1.5% and the accuracy is 99.7%.

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  • 我们在实验中发现一等当第二等当之间滴定较高的准确

    According to the experiments, it is found that the titration points between the first equivalence point and the second are more accurate.

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  • 灵敏高于2,6-二氯酚电位滴定

    It is more sensitive than 2,6-diohloroindophenol potentiometer titration.

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  • 建议现行SY 5093—92标准中增加酸化滴定附则,用来测定水媒生产CMC产品取代

    It is suggested that acidizing treatment and titration should be appended to SY 5093 92 to determine the substitution degree of CMC produced with water-medium method.

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  • 采用电位滴定改进测定甲醛含量中性硫酸钠准确影响因素进行了探讨。

    In this paper a potentiometric titration was used to improve the neutral sodium sulfite method for determining the content of formaldehyde, and the accuracy and influential factors were discussed.

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  • 采用EDTA滴定测定水质测量不确定评定

    Uncertain degree is evaluated to adopt EDTA titrimetric law to measure total hardness of water quality.

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  • EDTA滴定检测硫酸盐混合液加入是否适当直接影响到检测的精确

    Testing the content of sulphate with EDTA titration method can directly influence its precision because whether the capacity of barium mixed liquid of magnesium is added suitably.

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  • 本文提出氢离子活为测量值混合滴定计算公式;

    A formula for the calculation of the equivalent volume of acid mixture titration is derived.

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  • 本文提出氢离子活为测量值混合滴定计算公式;

    A formula for the calculation of the equivalent volume of acid mixture titration is derived.

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