Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness

	Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness
	Sun, Wen 1,2; Li, Hui 2; Wang, Han 1; Xiao, Shan 1; Wang, Jihui 1; Feng, Liang 2
刊名	talanta
	2015-10-01
卷号	143 页码:127-131
关键词	Sensitivity pH indicator Color transition point Fish freshness
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.
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
收录类别	SCI
语种	英语
WOS记录号	WOS:000357750200019
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/146378]
专题	大连化学物理研究所_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
推荐引用方式 GB/T 7714	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.