论文部分内容阅读
用直接对比法测定了WO_(2·9)(四方晶系)中WO_3(正交晶系)的含量。先用了改变的增量法确证F-蓝钨01中不含WO_3,为纯的WO_(2·9)。以此为基础,用直接对比法测定一系列配制混合样品中的WO_3含量(样品中WO_3含量为2～75％)。将测定值与配制值含量相比较,其偏差在1％左右。证实方法的灵敏度和准确度是令人满意的。
The content of WO_3 (orthorhombic) in WO_ (2. 9) (tetragonal system) was determined by direct contrast method. The first incremental method was used to confirm that F-blue tungsten 01 does not contain WO_3 and is pure WO_ (2.9). Based on this, the content of WO_3 in a series of mixed samples was determined by direct contrast method (the content of WO_3 in the sample was 2 ~ 75%). The measured value and the content of the formulated value compared to the deviation of about 1%. Confirmation of the sensitivity and accuracy of the method is satisfactory.