基于二氰基异佛尔酮的比色型pH探针  

Colorimetric pH Sensor Based on Dicyanoisophorone

作　　者：刘涛[1] 王冠蕾[1] 刘春艳[1] 张怡 Liu Tao;Wang Guanlei;Liu Chunyan;Zhang Yi(Department of Chemical Engineering,Students' Affairs Division,Chengde Petroleum College,Chengde,Hebei 067000,China)

机构地区：[1]承德石油高等专科学校化学工程系学生处,河北承德067000

出　　处：《化学世界》2020年第5期378-380,共3页Chemical World

摘　　要：合成了一种基于二氰基异佛尔酮的比色型pH检测探针.该探针随着pH的增大,430 nm处吸收峰逐渐下降,542 nm处出现新的吸收峰且逐渐升高,伴随着溶液颜色很明显的由黄色变为紫色.同时,在不同的pH范围内吸收强度比(I542/I430)与pH呈现不同的线性关系,可用于pH的检测.A colorimetric pH sensor based on dicyanoisophorone was synthesized.With the increase of pH,the absorption at 430 nm decreased and a new absorption at 542 nm emerged and increased gradually.Simultaneously,the yellow solution turned violet distinctly.The ratio of absorption intensity(I542/I430)was found to be linear on pH in different ranges so that this sensor can be used to detect pH.

关 键 词：二氰基异佛尔酮 比色 pH探针 裸眼观测 

分 类 号：O657.3[理学—分析化学]