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Shuangjun Xu 보안공학연구지원센터 2015 International Journal of Security and Its Applicat Vol.9 No.12
With the development of the Internet economy, most people begin to accept online shopping. From the perspective of information economics, consumer credit market is particularly important. The protection of credit consumer rights can improve the shopping satisfaction, and thus to overcome the negative impact of the information asymmetry and the moral hazard. In this paper, we make empirical analysis about the consumer rights protection in online shopping, and test the impact of shopping satisfaction on customer relationship quality. The result shows that consumer rights protection will improve the Customer satisfaction and trust, and conduce to improving the quality of customer relationships. Therefore, construct and improve the legal system of consumer credit law is particularly important.
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Pyrene-based bisboronic sensors for multichannel enantioselective recognition of tartaric acid
Xiao, Ting,Wang, Fang,Chen, Yahui,Yang, Xiao,Wei, Tingwen,Liu, Chuantao,Chen, Shuangjun,Xu, Zhijun,Yoon, Juyoung,Chen, Xiaoqiang Elsevier 2019 Dyes and pigments Vol.163 No.-
<P><B>Abstract</B></P> <P>New chiral bisboronic receptors based on pyrene-excimer were synthesized and applied for the determination of absolute configuration and enantiomeric composition of tartaric acid. The distinction was visualized by portable UV lamp in certain concentration range. There were three ways for the sensors to enantioselectively recognize tartaric acid, including the fluorescence spectrum, UV–vis spectrum, and CD spectrum. The enantiomeric excess of tartaric acid was measured quantitatively by using fluorescence analytical technique. Compared with the previous chiral boronic acid sensors, sensor <B>1</B> showed weaker background fluorescence and excellent chiral recognition ability of D/<SMALL>L</SMALL>-tartaric acid throughout the whole pH range.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Two pyrene-based sensors for enantioselective recognition of tartaric acid were synthesized. </LI> <LI> Three ways to recognize tartaric acid, including the fluorescence spectrum, UV–vis spectrum, and CD spectrum. </LI> <LI> Sensor <B>1</B> showed weaker background fluorescence and recognized tartaric acid throughout wider pH range. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Pyrene-based chiral discrimination of tartaric acid including the fluorescence spectrum and CD spectrum.</P> <P>[DISPLAY OMISSION]</P>
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