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Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness
Sun, Wen1,2; Li, Hui2; Wang, Han1; Xiao, Shan1; Wang, Jihui1; Feng, Liang2
关键词Sensitivity Ph Indicator Color Transition Point Fish Freshness
刊名TALANTA
2015-10-01
DOI10.1016/j.talanta.2015.05.021
143页:127-131
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]COLORIMETRIC SENSOR ARRAY ; OPTOELECTRONIC NOSE ; MOLECULAR RECOGNITION ; SENSING ARRAYS ; IDENTIFICATION ; DISCRIMINATION ; MEAT
英文摘要The sensitivity of pH indicators is always confined in acidic solvents used during the immobilization because of the large deviation from their color transition points. By regulating the pH of indicators using organic acid or base, the color transition points of indicators could be readily achieved and the sensitivity could be greatly enhanced. In this study, bromophenol blue was selected as an example to interpret this improvement. And Hue, Saturation and Value (HSV) color model was applied to obtain digital color information of pH indicators. In addition, other two kinds of pH indicators were chosen and regulated to their color transition points as well. The resultant indicators together with the original ones were composed to a colorimetric sensor array and utilized to determine fish freshness. Compared with the original indicators, much higher sensitivity in the detection of fish freshness was obtained by the pH regulated indicators. (C) 2015 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000357750200019
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146378
专题中国科学院大连化学物理研究所
作者单位1.Dalian Polytech Univ, Sch Food Sci & Technol, Dalian 116034, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Liaoning, Peoples R China
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Sun, Wen,Li, Hui,Wang, Han,et al. Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness[J]. TALANTA,2015,143:127-131.
APA Sun, Wen,Li, Hui,Wang, Han,Xiao, Shan,Wang, Jihui,&Feng, Liang.(2015).Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness.TALANTA,143,127-131.
MLA Sun, Wen,et al."Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness".TALANTA 143(2015):127-131.
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