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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工. 有机化学
办公地点：大连市高新区凌工路2号西部校区化工楼E434房间
联系方式：0411-84986265
电子邮箱：zhangshf@dlut.edu.cn
A New Highly Sensitive and Colorimetric pH Indicator Derived from 2-Amino-5-nitrothiazole and H-acid
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论文类型：期刊论文
发表时间：2016-04-05
发表刊物：CHEMISTRY LETTERS
收录刊物：SCIE
卷号：45
期号：4
页面范围：472-474
ISSN号：0366-7022
关键字：pH indicator; Naked eye; Thiazole-containing dye
摘要：A new pH indicator having high sensitivity and significant color change visible to the naked eye from red to blue in a narrow pH range (3.2-4.0) with high molar absorption coefficient was designed and synthesized from 2-amino-5-nitrothiazole and H-acid. The possible mechanism of the indicator was proposed by H-1 NMR and C-13 NMR titration experiments. This pH indicator was successfully applied in visualization of simulated gastric fluid acid pH changes in the simulated curing process of gastric ulcer.