摘要
以氨基磺酸为稳定剂,配制质量浓度为25. 3 g/L的二溴海因水溶液,测定了水溶液的紫外吸收光谱、稳定性和杀菌性。由实验结果可知,该水溶液在波长280 nm处有吸收峰,表明水溶液中氨基磺酸氮原子与二溴海因分子中的部分活性溴形成共价键,从而减缓活性溴的释放,增强二溴海因在水溶液中的稳定性;稳定性实验表明该水溶液具有良好的稳定性;二溴海因质量浓度为1 000 mg/L的消毒液对悬液中大肠杆菌、金黄色葡萄球菌、铜绿假单胞菌具有优异的杀菌效果,二溴海因质量浓度为2 500 mg/L的消毒液对悬液中白色念珠菌具有优异的杀菌效果;现场消毒实验表明二溴海因消毒液对物体表面自然菌具有良好的杀菌效果。
An aqueous solution of dibromohydantoin( DBDMH) whose concentration was 25.3 g/L was prepared with sulfamic acid as the stabilizer. The UV absorption spectrum, stability and bactericidal activity of this solution were examined. The experimental results show that, there is an absorption peak at the wavelength of 280 nm, indicating that covalent bonds have been formed between the nitrogen atoms in the sulfamic acid molecules and part of active bromine atoms in the DBDMH molecules. This can reduce the release of the active bromines and help to stabilize the DBDMH in the water. The results of stability test reveal that the solution is very stable. It is found that the solution containing 1 000 mg/L DBDMH shows superior disinfection effects against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. The solution containing 2 500 mg/L DBDMH shows superior disinfection effects against Candida albicans in the suspension. The results of the spot test show that the solution of DBDMH also shows good disinfection effects against natural germs.
作者
周龙梅
张亮亮
王金燕
ZHOU Long-mei;ZHANG Liang-liang;WANG Jin-yan(Shanghai Research and Development Center of Shandong Lircon Medical Technology Co., Ltd.,Shanghai 201203, China;Shandong Lircon Medical Technology Co., Ltd., Dezhou, Shandong 253032, China)
出处
《日用化学工业》
CAS
CSCD
北大核心
2019年第1期40-43,57,共5页
China Surfactant Detergent & Cosmetics
