scholarly journals Multicomponent Determination of Chlorinated Hydrocarbons Using a Reaction-Based Chemical Sensor. 3. Medium-Rank Second-Order Calibration with Restricted Tucker Models

1994 ◽  
Vol 66 (20) ◽  
pp. 3345-3351 ◽  
Author(s):  
A. K. Smilde ◽  
R. Tauler ◽  
J. M. Henshaw ◽  
L. W. Burgess ◽  
B. R. Kowalski
Keyword(s):  
Chemical Sensor ◽  
Chlorinated Hydrocarbons ◽  
Second Order ◽  
Second Order Calibration

Spectrophotometric Determination of Melamine in Liquid Milk by Multivariate Second Order Calibration

2015 ◽  
Vol 12 (1) ◽  
pp. 74-84
Author(s):  
Ramia Z. Al Bakain ◽  
Yahya S. Al-Degs ◽  
Amjad H. El-Sheikh ◽  
Sharif H. Arar
Keyword(s):  
Spectrophotometric Determination ◽  
Second Order ◽  
Liquid Milk ◽  
Second Order Calibration

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.

Chemometrics-assisted liquid chromatography-full scan mass spectrometry for simultaneous determination of multi-class estrogens in infant milk powder

2018 ◽  
Vol 10 (12) ◽  
pp. 1459-1471 ◽  
Author(s):  
Xiao-Dong Sun ◽  
Hai-Long Wu ◽  
Zhi Liu ◽  
Li-Xia Xie ◽  
Yong Hu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
Milk Powder ◽  
Calibration Method ◽  
Second Order ◽  
Infant Milk Powder ◽  
Full Scan ◽  
Second Order Calibration

Simultaneous determination of estrogens in infant milk powder using a second-order calibration method coupled with LC-MS operated in full scan mode.

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