In accordance with ferrous ammonium sulfate in water samples to calculate the amount of material to restore the volume of oxygen consumption, which was potassium dichromate titration reflux. 根据硫酸亚铁铵的用量算出水样还原性物质消耗氧的量,这就是重铬酸钾回流滴定法。
Determination of metallic iron in direct reduced iron by potassium dichromate titration after decomposition of sample by ferric chloride 三氯化铁分解重铬酸钾滴定法测定直接还原铁中金属铁
Potassium dichromate titration method was used for determining sodium lactate in compound sodium lactate injection. 用重铬酸钾法测定复方乳酸钠注射液中的乳酸钠,方法简便、速,准确。
Study of copper reduction& potassium dichromate titration measuring total iron 金属铜还原-重铬酸钾滴定法测定总铁的研究
30 ℃ with the initial pH 2.0.The determination of Fe by the potassium dichromate titration method indicated that at the shaking bath speed of 160 r/ min, and pH 1.7 and temperature of 30 ℃ the rate of ferrous iron oxidation by T. 用重铬酸钾滴定法测定铁的结果表明,在摇床转速为160r/min的条件下,pH值1.7,温度30℃时T。
There exists a problem of lower percentage of oxidization to the organic matters of benzene and aromatic hydrocarbons when we determine the COD by the method of potassium dichromate titration. 重铬酸钾法测定COD时,一般存在着该法对苯及其芳烃类的有机物氧化率偏低的问题。
Based on the principle of classical potassium dichromate oxidation-outer heating, a method for the determination of organic matters in soil samples by oxidation-reduction titration with furnace digestion was proposed. 沿用经典重铬酸钾氧化-外加热法的原理,建立了消解炉消解-氧化还原滴定法测定土壤样品中有机质的方法。
To control the content of the poisonous ion in the analytical chemistry experiment, in this paper, the study about the method of potassium permanganate, potassium dichromate, iodine measure and acid-basic titration was done, which was started with the reactant content reduced. 为控制分析化学实验废液中有害离子含量,本文从降低反应物浓度入手,对高锰酸钾,重铬酸钾,碘量法,酸碱滴定等方法进行了研究。
Using of acid to solubilize samples, using of stannous chloride to reduce most of ferric iron in the acid medium, using of titanous chloride to reduce residual ferric iron, total ferro quantity can be determined by potassium dichromate titration. 采用酸分解试样,在酸性介质中,以二氯化锡还原大部分三价铁,三氯化钛还原剩余三价铁,用重铬酸钾滴定测全铁量。