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过氧乙酸近年来已在基层推广应用。其缺点为稳定性较差,易于分解,在存放过程中有效浓度逐渐下降。笔者利用稳定度测定法,以非那西丁、阿司匹林、草酸、新洁尔灭、洗必泰、水杨酸、苯甲酸、EDTA、磷酸、聚乙烯吡咯酮(PVP)等作为稳定剂进行了比较,选出其中较好的草酸、EDTA、PVP等,同目前认为较好的稳定剂8-羟基喹啉、枸橼酸进行了加速试验、室温避光贮存及冰箱贮存等观察,现报告如下。实验材料及方法 1.过氧乙酸:原料为二级试剂,依照常规法配制,成品含量为16.32%。
Peracetic acid in recent years has been promoting the use of grassroots. The disadvantage is poor stability, easy to decompose, the effective concentration in the storage process gradually decreased. The authors used the method of stability determination to compare phenacetin, aspirin, oxalic acid, benzalkonium chloride, chlorhexidine, salicylic acid, benzoic acid, EDTA, phosphoric acid and polyvinylpyrrolidone (PVP) Out of which the better oxalic acid, EDTA, PVP, etc., with the currently considered better stabilizer 8-hydroxyquinoline, citric acid was accelerated test, dark storage at room temperature and refrigerator observation, are as follows. Experimental materials and methods 1. Peracetic acid: raw materials for the two reagents, formulated in accordance with conventional methods, the finished product content of 16.32%.