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。
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