论文部分内容阅读
在表面活性剂存在下，用邻苯二酚紫作显色剂，光度法测定钨铁中钨的含量，并进行了条件试验和结果对照。
In the presence of surfactant, pyrocatechol purple as a chromogenic agent, tungsten content of tungsten in the determination of tungsten, and the conditions of the test and the results of the control.