查询词典 iodometry

When the measured value greater than or equal to 5mg/100mg usually allows iodometry; When measured value is less than 5mg/100mg, the method used to ensure the accuracy of measurements.

当测定值大于或等于5mg/100mg时，通常允许用碘量法；当测定值小于5mg/100mg时，通常使用光度法，以保证测定结果的精度[1]。

Taking 2% oxalic acid and 10% hydrochloric, mixture of 2% oxalic acid and 4% acetic acid as extraction agent, the content of vitamin C was determined by using iodometry.

方法］以2%草酸、10%盐酸以及2%草酸和4%醋酸的混合液作为提取试剂，对4种蔬菜中维生素C进行提取，并用碘量法测定蔬菜中维生素C的含量。

Pointing at fluctuant sulfur content and burning character of metallurgical quicklime sample, determining sulfur in metallurgical quicklime by combustion iodometry is improved.

针对冶金石灰试样中硫含量波动大及燃烧的特征，改进了燃烧碘量法测定冶金石灰中的硫。

Dermination of arsenic in zinc concentrates by the iodometry

对锌精矿氧压酸浸液中铟的提取进行了研究，在1。

Pararosaniline was the most accurate and sensitive method of determining SO2 residue, and it was fit for the samples of any SO2 content. Improvement pararosaniline method was only fit for the samples of high SO2 residue. Iodometry was not fit for the deep color samples and low SO2 residue samples. The fast determination method could be used the quality and semi-quantitative determination of SO2 residue in edible fungus.

副玫瑰苯胺比色法是检测SO2残留最准确、最灵敏的方法，适合于各种SO2浓度的样品；改良的副玫瑰苯胺比色法只适合于高SO2残留的样品；碘量法不适宜检测深颜色的食用菌，而且在检测低SO2残留样品时准确度不高；快速测定法可用于食用菌产品中SO2残留的定性检测和半定量分析。

Using Agilent 8453 ultraviolet-visible spectrophotometer, the affecting factors were studied on the kinetic processes in iodometry involved in the volatilization of iodine and the oxidation of iodide ion by dissolved oxygen, in particular such as the shape of the vessel, the volume of the solution tested, the concentration of KI and the temperature and the acidity of tested solution.

利用紫外－可见分光光度仪测量了I2挥发、I在酸性介质中被溶解氧氧化的动力学过程，着重研究了容器形状、溶液体积、KI浓度、温度等因素对I2挥发速率的影响以及溶液酸度与I氧化反应速率的关系。

This paper gives a new method which determines the content of zinc chloride in activator solution for producing activated carbon by indirect iodometry method after prcdccolor and removing iron (Fc3+and Fe2+).

本文报道了采用间接碘量法配合预脱色及除铁离子Fe~(3+，Fe~(2+)处理对氯化锌法生产活性碳的活化剂溶液中锌含量进行测定的新方法。

The result shows that this is a easy-operating way with the fast determination and high accuracy. It is less disturbed, the changing of the colors is acuity and the end point is easily estimated. The result of this method is very much accurate than that in the iodometry. RSD%=0.3%, and R is between 97.56 % and 101.08%. The result, got according to this method, is much better by the students experiment.

实验表明，这种方法操作简单、测定快速、准确度高、干扰小且颜色变化敏锐，终点易于判断，测定结果的准确度远远高于间接碘量法，其相对标准偏差RSD%=0.3%，加标回收率为

Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is

Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。