a powerful oxidizing agent; forms perchlorates

methods:the sample, after the nitric acid and the perchloric acid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota.

方法：样品用硝酸和高氯酸消化后，导入火焰原子吸收分光光度计中，与标準系列比较定量。

tianjin xinyuan chemical co. , ltd. was established in 1995, mainly developing perchloric acid , perchlorate and peroxy acetic acid serial products.

天津市鑫源化工有限公司成立于1995年，以开发高氯酸，高氯酸盐和过氧乙酸系列产品为主。

amines were extracted with perchloric acid solution and derived with dansyl chloride.

高氯酸溶液提取，丹酰氯衍生，再用氨水去除尸胺干扰峰。

comparing sour alkali soak with perchloric acid soak, there is a remarkable difference, sour alkali soak results on the lower side.

结果表明，酸堿浸提与高氯酸浸提处理的样品，二者的测定结果存在显着差异，以酸堿浸提法结果偏低。

as manufacturer and exporter , we make a certain contribution to the development of perchloric acid .

使公司作为生产商和出口商， 在国内高氯酸的发展中做出了一定的贡献。

organo mineral compound fertilizers are digested with sulfuric acid hydrogen peroxide and nitric acid perchloric acid respectively and then their total potassium content is determined.

用硫酸—过氧化氢和硝酸—高氯酸分别对有机—无机复混肥料进行消化处理，然后进行总钾含量的测定。

methods: after a pretreatment with nitric acid or perchloric acid wet digestion, we used atomic fluorescence spectrometer methodology to detect selenium in human serum and urine.

方法：采用硝酸、高氯酸对尿样及血清进行湿法消解，利用原子荧光光谱法测定其中的硒含量。

describes the changing of the classical perchloric acid dehydration gravimetric method for determining silicon into the molybdenum blue photometric method to fast determine the content of silicon.

将经典的高氯酸脱水重量法测定硅改为钼蓝光度法快速分析硅含量。

the method is simple, fast and accurate, compared with conventional perchloric acid dehydrate gravimetric analysis.

该法较常用的高氯酸脱水重量法操作简单、快速，具有较好的準确度。

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

采用高氯酸非水滴定法分析废堿液中的甲酸钠，代替了误差较大的高锰酸钾法。

astm d2896-03 standard test method for base number of petroleum products by potentiometric perchloric acid titration.

电位高氯酸滴定法对石油产品堿值的试验方法。

figure out the chemical reaction equation of quinidine sulfate with perchloric acid and the equivalent relationship.

写出高氯酸滴定硫酸奎尼丁的滴定反应式并计算滴定度？

the results indicate that the product yield of perchloric acid reaches 80%.

实验结果表明，可以得到产率80 %以上的高氯酸。

manganese in manganese ore is determined with ammonium ferrous sulfate titration method of perchloric acid oxidation.

对重铬酸钾滴定法测定铁矿石中全铁的不确定度的评定过程、评定方法进行了研究。

adsorption of platinum with d-992 ion exchange resin and desorption of platinum from d-992 resin with perchloric acid or thiourea have been studied.

较系统地研究了d992新功能阴离子交换树脂吸附、解吸铂的条件。