A Fast Chromatographic Method for Determination of Daidzein and Genistein in Spiked Water River Samples Using Multivariate Curve Resolution

Moreira, Edilene Dantas Teles; Pinto, Licarion; Gomes, A. A.; Goicoechea, Héctor C.; Araújo, Mário César Ugulino de

doi:10.5935/0103-5053.20150125

Cited by 2 publications

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“…However, the main limitation of PARALIND is that it is a PARAFAC‐based decomposition, so trilinearity must be assumed. Other studies concerning the different coelution challenges and the handling strategies in this field can be found in the literature …”

Section: The Challenges In the Way Of Chromatographic Modelingmentioning

confidence: 99%

Current challenges in second‐order calibration of hyphenated chromatographic data for analysis of highly complex samples

Vosough

2017

Journal of Chemometrics

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Coupling of multiway and multiset modeling methods with hyphenated chromatographic data for second-order calibration purposes allows the quantification of multiple target analytes in highly complex samples, which otherwise would be impossible or at least a very hard task using univariate calibration scenario. In this regard, there are some chromatographic challenges that complicate attaining the best quantification efficiency through the highlighted advantages such as increased sensitivity and selectivity and the well-known second-order advantage. The present paper tries to overview these issues and to address the most usable strategies for their handling with a special focus on the relevant recent studies in quantitation field. KEYWORDS challenges, complex samples, hyphenated chromatography, multiway and multiset methods, quantitation 1 | INTRODUCTION One of the most important factors that enhances the quality of our life is the depth of our information about the composition of natural or synthetic materials, such as the presence of toxic or potentially dangerous substances in food products, personal care products, environmental resources, and so on. In fact, numerous similar and highly concerned examples can be noted, in addition to the cases that are recently spotlighted, like identification and quantification of new banned drugs in slimming herbal products.Chromatographic analytical systems have been widely used for analysis of complex samples, such as bioanalytical field, food analysis, and metabolomics. Hyphenated chromatographic techniques, such as high-performance liquid chromatography coupled with diode array detection or fast-scanning fluorescence detection (HPLC-DAD/FSFD), liquid chromatography mass spectrometry (LC-MS), and gas chromatography mass spectrometry (GC-MS), have found their place in most of analytical laboratories and routinely provide valuable qualitative and quantitative information. As a result, such powerful techniques enable the analyst to efficiently analyze much more complex samples of various nature. This is especially true for chromatographic systems coupled with mass spectrometric detection, because of additional selectivity and sensitivity, which is the intrinsic and advantageous property of mass spectrometers. However, parameter optimizations in chromatographic systems (especially in LC systems) is a necessary and often laborious step in the path to obtain the best performance of the instrument. In fact, success of the chromatographic separation, robustness and stability of the outcome signal, strongly depends on chromatographic equipment, such as pumping and solvent delivery system, detector performance, column type and its steadiness, and temperature control. Although some chromatographic troubles such as problematic solvent peak, a nonstable or nonuniform background offset, peak tailing or fronting, coelution of analytes with each other or matrix constituents, retention time shifts in different runs, peak shape changes, and a narrow linear response range may usually exist.Fi...

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Section: The Challenges In the Way Of Chromatographic Modelingmentioning

confidence: 99%

Current challenges in second‐order calibration of hyphenated chromatographic data for analysis of highly complex samples

Vosough

2017

Journal of Chemometrics

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“…MCR-ALS was the selected algorithm for the successful determination of the phytoestrogens daidzein and genistein (two potential emerging water contaminants) in river water using LC-DAD second-order data (Moreira et al, 2015). By implementation of the present chromatographic method, the operation time was reduced from 7.00 to 3.25 min, with the concomitant decrease in the amount of organic solvent (used as constituent of the mobile phase: acetonitrile:water 70:30, v/v mixture).…”

Section: Chromatographic Analysis Assisted By Chemometricsmentioning

confidence: 99%

Experimental and chemometric strategies for the development of Green Analytical Chemistry (GAC) spectroscopic methods for the determination of organic pollutants in natural waters

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Escandar

2016

Sustainable Chemistry and Pharmacy

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The development of Green Analytical Chemistry (GAC) methods is one of the most active areas of Green Chemistry. Especially relevant are GAC methods devoted to the detection and quantification of environmental pollutants, because they should not pollute the environment more than the analyte to be determined. While considerable attention has been paid to develop environmentally friendly alternatives for the first stage of the global analytical process (e.g., sample preparation techniques), relatively fewer works are dedicated to implement green approaches for obtaining the analytical signal. Current strategies that are based on the principles of Green Chemistry for the determination of common organic pollutants in natural waters are detailed. The review collects and discusses selected publications from about the last 5 years relating to the topic, highlighting the role of multivariate calibration as a modern and very useful tool to achieve the pursued objectives.

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A Fast Chromatographic Method for Determination of Daidzein and Genistein in Spiked Water River Samples Using Multivariate Curve Resolution

Cited by 2 publications

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Current challenges in second‐order calibration of hyphenated chromatographic data for analysis of highly complex samples

Current challenges in second‐order calibration of hyphenated chromatographic data for analysis of highly complex samples

Experimental and chemometric strategies for the development of Green Analytical Chemistry (GAC) spectroscopic methods for the determination of organic pollutants in natural waters

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