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引言 硅酸盐岩石和矿物中总水量快速分析的标准方法有三个步骤:(1)样品与钨酸钠置于一个倾斜的试管中熔融;(2)将已预先称重过的滤纸插入试管的顶端捕集被释放的水;(3)随即称重滤纸以测定捕集水的量。这一技术的主要前提是用滤纸捕集被释放的水(不是从试管端塞子的洞中逸出,因这种逸出需要增大气压)。Shapiro和Brannock(1956)建议,为了加速水的冷凝和捕集,试管外壁用湿纸包裹以冷却试管的顶端。
Introduction The standard method for rapid analysis of total water in silicate rocks and minerals has three steps: (1) the sample and sodium tungstate are melted in a tilted test tube; (2) the pre-weighed filter paper is inserted into the test tube The top captures the released water; (3) The filter paper is then weighed to determine the amount of trapped water. The main prerequisite for this technique is to trap the released water with filter paper (not from the hole in the end of the tube at the test tube, as this escape requires an increase in air pressure). Shapiro and Brannock (1956) suggested that in order to speed up water condensation and capture, the outer wall of the tube was wrapped with wet paper to cool the top of the tube.