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苯扎溴铵酊的含量测定方法常用十二烷基硫酸钠或十二烷基磺酸钠滴定法 [1,2 ] ,操作过程复杂、烦琐、误差较大。我院平时采用银量法直接滴定 ,但存在终点不明显、消耗标准溶液太少等缺点 ,对测定结果影响较大。我们应用双波长法测定苯扎溴铵酊的含量 ,操作简便、可靠。1 材料
The determination of benzalkonium bromide tincture commonly used sodium dodecyl sulfate or sodium dodecyl sulfate titration [1,2], the operation is complicated and cumbersome, the error is large. Our hospital usually use the silver method titration, but there is not obvious end point, the consumption of standard solution too little shortcomings, the determination of the greater impact. We use the dual wavelength method for the determination of benzalkonium bromide tincture, easy to operate and reliable. 1 material