结合实践提出使用双指示剂法测定工业煮炉水中氢氧化钠和磷酸三钠浓度。
With working practice, double indicator method is pointed out to determine the content of sodium Hydroxide and Tri-sodium Phosphate in industrial stove water.
介绍用碱标准溶液直接测定双甘膦生产中回收混合溶液中盐酸与亚磷酸含量的双指示剂法。
Double-tracer technique was used to determine chlorhydric acid and phosphorous acid in the recovered solution of glycine, N-(canboxymethyl)-N-(phosphoromethyl).
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