Determination of leucomalachite green, leucocrystal violet and their chromic forms using excitation–emission matrix fluorescence coupled with second-order calibration after dispersive liquid–liquid microextraction

2015 ◽  
Vol 185 ◽  
pp. 479-487 ◽  
Author(s):  
Saiqin Ju ◽  
Jian Deng ◽  
Jianlin Cheng ◽  
Ni Xiao ◽  
Kaihui Huang ◽  
...  
Keyword(s):  
Second Order ◽  
Excitation Emission Matrix ◽  
Leucocrystal Violet ◽  
Leucomalachite Green ◽  
Second Order Calibration ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

scholarly journals A Comparison of Second-Order Calibration Methods Applied to Excitation-Emission Matrix Fluorescence Data

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hui Chen ◽  
Zan Lin ◽  
Tong Wu ◽  
Chao Tan
Keyword(s):  
Performance Comparison ◽  
Second Order ◽  
Trilinear Decomposition ◽  
Excitation Emission Matrix ◽  
Calibration Methods ◽  
Mathematical Algorithms ◽  
Spectral Profiles ◽  
Second Order Calibration ◽  
Potential Tool

Due to the variety of second-order data being generated by modern instruments and various mathematical algorithms being available for analysis purposes, second-order calibration is gaining widespread acceptance by analytical community. It has the so-called second-order advantage; that is, it enables concentration and spectral profiles of sample components to be extracted even in the presence of unexpected interferences. A comprehensive performance comparison of alternating trilinear decomposition (ATLD) and its two variants, that is, alternating penalty trilinear decomposition (APTLD) and self-weighted trilinear decomposition (SWATLD), was presented in this paper. The experiment was based on the simultaneous determination of three dihydroxybenzenes, that is, catechol, hydroquinone, and resorcinol, by excitation-emission matrix fluorescence (EEMF) spectroscopy. Two special measures, that is, the consistency (COS) between the resolved and actual profiles and the mean of recovery, were used for evaluation. The optimal result was obtained by the APTLD model with five components. No perceptible difference on the speed of convergence was found. It indicates that EEMF linked with the APTLD algorithm can serve as a potential tool of quantifying dihydroxybenzenes simultaneously in environmental samples.

A chemometrics-assisted excitation–emission matrix fluorescence method for simultaneous determination of arbutin and hydroquinone in cosmetic products

2016 ◽  
Vol 8 (24) ◽  
pp. 4941-4948 ◽  
Author(s):  
Li Zhu ◽  
Hai-Long Wu ◽  
Li-Xia Xie ◽  
Huan Fang ◽  
Shou-Xia Xiang ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Calibration Method ◽  
Second Order ◽  
Fluorescence Method ◽  
Cosmetic Products ◽  
Excitation Emission Matrix ◽  
Second Order Calibration

Simultaneous determination of arbutin and hydroquinone in cosmetic products using a second-order calibration method coupled with excitation–emission matrix fluorescence.

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