论文部分内容阅读
目的 :建立苯扎溴铵消毒液中主药苯扎溴铵含量测定的新方法。方法 :利用氨基磺酸铵与亚硝酸钠在酸性条件下反应生成氮气 ,除去苯扎溴铵消毒液中的亚硝酸钠 ,样品不经分离 ,用紫外法测定。结果 :苯扎溴铵在 0 .1～ 0 .4mg·ml-1的浓度范围内呈良好的线性 (r =0 .9998) ,平均回收率在 99.8% ,RSD为 0 .85 %。结论 :本法可用于苯扎溴铵消毒液的测定 ,结果可靠 ,方法简便 ,适用于基层医院
Objective: To establish a new method for the determination of benzalkonium bromide in benzalkonium bromide disinfectant. Methods: Ammonium sulfamate and sodium nitrite were reacted under acidic conditions to produce nitrogen. The sodium nitrite in the benzalkonium bromide disinfectant was removed. The samples were not separated and determined by UV. Results: Benzalkonium bromide showed a good linearity (r = 0.9998) at a concentration of 0.1-1.4 mg · ml-1 with an average recovery of 99.8% and a RSD of 0.85%. Conclusion: This method can be used for the determination of benzalkonium bromide disinfectant, the results are reliable, the method is simple, suitable for primary hospital