低浓度磷化氢气体检测管的研制  

Development of Low Concentration Phosphine Gas Detection Tube

作　　者：王海涛 舒航 胡嘉豪 Wang Haitao;Shu Hang;Hu Jiahao(College of Chemical Engineering,Henan Technical Institute,Zhengzhou Henan 450000,China)

机构地区：[1]河南应用技术职业学院化学工程学院,河南郑州450000

出　　处：《山西化工》2024年第8期108-110,共3页Shanxi Chemical Industry

摘　　要：通过实验,优化指示剂配方,制备磷化氢检测管,结果表明当使用氯化汞和氯化钠体系,控制水分在20%,通气量在100 m L,制备的检测管变色界面清晰,重复性好,磷化氢质量浓度在20~200 mg/L范围内,检测管变色长度与气体浓度拟合度较好,线性相关系数在0.999以上。Through experiments,the indicator formula was optimized and a phosphine detection tube was prepared.The results showed that when using a mercury chloride and sodium chloride system,controlling water content at 20%and ventilation at 100 mL,the prepared detection tube had a clear color changing interface,good repeatability,and a phosphine concentration range of 20 mg/L to 200 mg/L.The color changing length of the detection tube was well fitted with gas concentration,with a linear correlation coefficient above 0.999.

关 键 词：磷化氢 检测管 环境检测 

分 类 号：O659[理学—分析化学]