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1·Soluble lead sulfide can be extracted from the residue by 10% hydrogen peroxide, 15% ammonium acetate and 5% acetyl hydrate.

用10%过氧化氢—5%醋酸—15%醋酸铵浸取上述残渣，可浸取溶解硫化态铅；

2·The method comprises the following steps: 1) adding 3,5-dimethylphenol and ammonium acetate into the organic solvent, mixing and dissolving;

方法的步骤如下：1） 在有机溶剂中，加入3，5-二甲基苯酚与乙酸铵，搅拌溶解；

3·Using hydrochloric acid and acetic acid-ammonium acetate buffer solution instead of acetic acid to adjust the acidity of solution, the content of iron in the CO_(2) removed liquid is determined.

采用盐酸和乙酸—乙酸铵缓冲溶液取代原方法中的乙酸调溶液酸性，用于测定脱碳液中铁含量。

4·Spectrophotometric determination of cobalt in bright nickel plating bath was advanced with ammonium thiocyanate as complexing agent and butyl acetate as extracting agent.

以硫氢酸铵络合钴离子，随后用乙酸丁酯进行萃取，利用分光光度法测量光亮镀镍溶液中的钴离子。

5·This article studies benzyl - triethyl ammonium chloride as catalyst of phase - transfer to prepare for phenyl acetate. Get the best operating condition and get the yield of 86%.

研究了以苄基三乙基氯化铵为相转移催化剂制备乙酸苄酯，得出了最佳操作条件，使反应收率达86%。