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茚三酮与酪氨酸在双子表面活性剂胶束介质中的反应研究。

Study of the reaction of ninhydrin with tyrosine in gemini micellar media.

作者信息

Kumar Dileep, Rub Malik Abdul

机构信息

Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University Ho Chi Minh City Vietnam.

Faculty of Applied Sciences, Ton Duc Thang University Ho Chi Minh City Vietnam

出版信息

RSC Adv. 2019 Jul 16;9(38):22129-22136. doi: 10.1039/c9ra03557e. eCollection 2019 Jul 11.

DOI:10.1039/c9ra03557e
PMID:35518869
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9066800/
Abstract

This paper reports the study of the ninhydrin and l-tyrosine (Tyr) reaction in gemini micellar media. The aim of the study was to see the influence of different parameters on the reaction rate, including the influence of reactant concentration, temperature and pH. Spectrophotometric and conductometric techniques were employed to record the absorption of the product formed and cmc values as a function of the surfactants, respectively. The effect of varied surfactant concentrations on the reaction rate was also investigated. The quantitative treatment of the rate constant ( ) surfactant concentration was carried out on the basis of the pseudo-phase model suggested by Martinek , Menger and Portnoy, and established by Bunton. Micellar binding parameters and thermodynamic parameters have been calculated and are discussed in detail. A plausible reaction mechanism that is consistent with observed kinetic data has been proposed.

摘要

本文报道了在双子表面活性剂胶束介质中茚三酮与L-酪氨酸（Tyr）反应的研究。该研究的目的是考察不同参数对反应速率的影响，包括反应物浓度、温度和pH值的影响。分别采用分光光度法和电导法记录所形成产物的吸收情况以及临界胶束浓度（cmc）值随表面活性剂的变化情况。还研究了不同表面活性剂浓度对反应速率的影响。基于Martinek、Menger和Portnoy提出并由Bunton确立的假相模型，对速率常数与表面活性剂浓度进行了定量处理。计算并详细讨论了胶束结合参数和热力学参数。提出了一个与观察到的动力学数据一致的合理反应机理。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5252/9066800/a999f18e3c60/c9ra03557e-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5252/9066800/8e6be45ec771/c9ra03557e-s1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5252/9066800/8e6be45ec771/c9ra03557e-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5252/9066800/bf654d3b9d1c/c9ra03557e-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5252/9066800/f7afb270628d/c9ra03557e-f2.jpg
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Synthesis and characterization of geminis and implications of their micellar solution on ninhydrin and metal amino acid complex.双子表面活性剂的合成、表征及其胶束溶液对茚三酮和金属氨基酸络合物的影响
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