氯化物的检查是药物杂质检查的重要项目之一。对标准管的氯化钠浓度(即取标准氯化钠溶液的量)究竟以多少为宜,现有的规定各异。中国药典1977年版二部收载的品种中,对氯化物的检查,是取用标准氯化钠溶液的量2～10ml,即标准管溶液的浓度为0.0004～0.002mgCl~-/ml。有文献报道[药检工作通讯1978:8(1):42.1979;9(3):170] 取 Chloride inspection is one of the important items of drug impurity inspection. The standard tube of sodium chloride concentration (that is, take the standard amount of sodium chloride solution) what is appropriate, the existing provisions vary. Chinese Pharmacopoeia 1977 edition of the two contained in the varieties, the inspection of chloride is to take the standard amount of sodium chloride solution 2 ~ 10ml, the concentration of the standard tube solution was 0.0004 ~ 0.002mgCl ~ - / ml. It has been reported in the literature [Drug Test Communication 1978: 8 (1): 42.1979; 9 (3): 170] to take