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JL消毒剂杀灭微生物效果与腐蚀性的试验观察 |
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黄新宇 宋铁 王艳秋 孙利群 蒋健平
提要 JL消毒剂为含二氯异氰尿酸钠、非离子表面活性剂等的复方消毒剂。以载体试验测定其杀灭微生物效果。结果，以其含有效氯1 250 mg/L溶液作用40 min，对布片表面枯草杆菌黑色变种芽胞的杀灭率达100％，以其含有效氯1 000 mg/L溶液作用30 min，可将不锈钢片表面HBsAg抗原性破坏。其杀菌效果随有效氯浓度减少、作用时间缩短、有机物存在而下降。其含有效氯1 250 mg/L溶液对不锈钢、碳钢与铜无腐蚀，对铝基本无腐蚀。其原包装置54℃下14 d，有效氯下降率为4.3％。
关键词 含氯复方消毒剂 二氯异氰尿酸钠 杀芽胞剂 枯草杆菌黑色变种 HBsAg 腐蚀性 稳定性
EXPERIMENTAL OBSERVATION ON GERMICIDAL EFFICACY AND
CORROSIVENESS OF JL DISINFECTANT
Huang Xinyu Song Tie Wang Yanqiu Sun Liqun Jiang Jianping
(Jilin Provincial Sanitary and Anti-epidemic Station, Changchun 130021)
Abstract
JL Disinfectant is a compound disinfectant containing sodium dichloroisocyanurate, non-ionic surfactant, etc.. Its germicidal efficacy was measured with carrier test. The results indicated that its solution containing available chlorine 1250 mg/L with a 40 min contact time could kill 100% of Bacillus subtilis var. niger spores on surface of cloth strip and its solution containing available chlorine 1000 mg/L with a 30 min contact time could destroy HBsAg antigenicity on surface of stainless steel coupon. Its germicidal efficacy decreased with decreasing available chlorine concentration, shortening contact time or presence of organic substance. Its solution containing available chlorine 1250 mg/L was not corrosive to stainless steel, carbon steel and copper and essentially not corrosive to aluminum. The available chlorine content of it in original packing decreased by 4.3% after storing at 54℃ for 14 days.
Key words chlorine-containing compound disinfectant sodium dichloroisocyanurate sporicide Bacillus subtilis var. niger HBsAg corrosiveness stability
JL消毒剂是含二氯异氰尿酸钠、非离子表面活性剂等成分的含氯复方消毒剂，原液含有效氯为0.5%。在实验室，对其杀灭微生物效果与腐蚀性进行了试验观察。现将结果报告如下。
1 方法
1.1 中和剂选择试验
试验菌为枯草杆菌黑色变种（ATCC 9372）芽胞。试验时，用0.03 mol/L磷酸盐缓冲液（PBS）稀释成含菌量为107～108cfu/ml的芽胞悬液。取该悬液0.02 ml滴染于1.0 cm×1.0 cm脱脂白平纹布片上，置37℃干燥30[1] [2] 下一页
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