工艺：经ro(75%回收率)浓缩水需达到一级排放标准，聚合磷酸盐的去除。

Craft: After RO (75% returns-ratio) the thick synaeresis must achieve a level discharges the standard, polymerization phosphate removing.

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保持金粉过量投料，控制氰化亚金钾溶液的浓缩水量是得到高纯度和高收率产品的关键。

The reduced gold powder was used as a gold source and kept excessive in the process of producing KAu(CN) 2.

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该文对这一方法进行了改进，采用浓缩水样以提高待测元素的含量，并加入二氯化钙作为释放剂来消除硅的干扰。

An improvement on the method is made by using concentrated water sample in order to increase the concentration of trace elements in the samples.

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