This method has been successfully used to determine benzoic acid and salicylic acid in commercial preservative and bactericide simultaneously.
将该方法用于商品杀菌防腐剂中苯甲酸及水杨酸的同时测定，结果满意。
The method for preparing the acid pectase preparation still can ensure slow growth of bacteria in the acid pectase preparation in the absence of preservative.
应用本发明的方法制备的酸性果胶酶制剂，在不加防腐剂的情况下，仍然能够保证酸性果胶酶制剂中细菌的生长缓慢。
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