The direct titration of pyridine with aqueous standard solution of hydrochloric acid in the presence of concentrated neutral salts have been studied.
本文对浓中性盐存在时，用盐酸标准溶液直接滴定吡啶进行了研究。
The results showed that the SOD-like activity of copper salicylate encapsulated in neutral liposomes was enhanced over 3 times more than that of copper salicylate in aqueous solution.
证明中性脂质体包裹的水杨酸铜的SOD样活性比水杨酸铜在水溶液中提高了3倍多。
The aqueous solution of sodium carboxymethyl cellulose CMC was neutral or weakly alkaline.
羧甲基纤维素钠CMC的水溶液呈中性或弱碱性。
The aqueous solution of sodium carboxymethyl cellulose CMC was neutral or weakly alkaline.
羧甲基纤维素钠CMC的水溶液呈中性或弱碱性。
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