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The ore sample was dissolved in nitric acid.After enrichment and separation with Xanthic ester cotton,the silver was determined by thiocyanometry.

该方法采用硝酸溶解样品,离,以硫氰酸盐滴定法进行测定。

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in point of fact, in position, in power, in practice, in praise of, in principle, in private, in proportion, in proportion to, in public,

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3G, 401(K), a,

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