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黄河是多泥沙河流,而泥沙对微量汞是有一定吸附作用的。“黄河水系水质污染测定方法”中规定取原状浑水(即混有泥沙)作水样进行汞的分析,这样所测得的汞实质上是泥沙与水中含汞总量,而影响水质的主要是溶于水中的汞。因此,为了弄清黄河水系水质被汞污染的情况,我们认为采用分别测定清水与泥沙中汞含量的分析方法较为合适,为此我们对这一方法进行了试验。结果表明,用所拟方法分别测定水与泥沙中的无讥汞可取得较为满意的结果。
The Yellow River is more sediment rivers, and sediment on the trace mercury has a certain adsorption. The Yellow River Water Quality Determination of Water Pollution stipulates that intact muddy water (that is, mixed with sediment) is used for mercury analysis, so that the measured mercury is essentially the total amount of mercury in sediment and water and affects the quality of water The main is mercury dissolved in water. Therefore, in order to understand the mercury pollution of the water quality of the Yellow River water system, we think that it is more appropriate to adopt the analytical methods for the separate determination of mercury in clean water and sediment. Therefore, we test this method. The results show that the proposed method for the determination of mercury and sediment in the mercuric chloride can be more satisfactory results.