Simultaneous spectrophotometric determination of trace amount of malachite green and crystal violet in water after cloud point extraction using partial least squares regression

An, Lin; Deng, Jian; Liang, Zhou; Li, Hui; Chen, Fei; Wang, Hui; Liu, Yating

doi:10.1016/j.jhazmat.2009.10.092

Cited by 115 publications

(56 citation statements)

References 33 publications

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“…Over the years, an increasing number of analytical techniques such as spectrophotometry [6][7][8], high performance liquid chromatography (HPLC) [9][10][11], capillary electrophoresis Raman spectroscopy (CE-RS) [12], liquid chromatography tandem mass spectrometry (LC/MS n ) [2,13,14] and RNA-Aptamer-based assay [15] have been adapted for the detection of MG in various water matrices. Although the aforementioned techniques are considered as routine MG detection techniques, they are time-consuming and require complicated sample pretreatment (e.g., extraction, pre-concentration, derivatization, etc.).…”

Section: Introductionmentioning

confidence: 99%

Quantitative detection of trace malachite green in aquiculture water samples by extractive electrospray ionization mass spectrometry

Fang¹,

Yang²,

Chingin³

et al. 2016

Preprint

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Exposure to malachite green (MG) may pose great health risks to humans; thus, it is of prime importance to develop fast and robust methods to quantitatively screen the presence of malachite green in water. Herein the application of extractive electrospray ionization mass spectrometry (EESI-MS) has been extended to the trace detection of MG within lake water and aquiculture water, due to the intensive use of MG as a biocide in fisheries. This method has the advantage of obviating offline liquid-liquid extraction or tedious matrix separation prior to the measurement of malachite green in native aqueous medium. The experimental results indicate that the extrapolated detection limit for MG was~3.8 µg·L −1 (S/N = 3) in lake water samples and 0.5 µg·L −1 in ultrapure water under optimized experimental conditions. The signal intensity of MG showed good linearity over the concentration range of 10-1000 µg·L −1 . Measurement of practical water samples fortified with MG at 0.01, 0.1 and 1.0 mg·L −1 gave a good validation of the established calibration curve. The average recoveries and relative standard deviation (RSD) of malachite green in lake water and Carassius carassius fish farm effluent water were 115% (6.64% RSD), 85.4% (9.17% RSD) and 96.0% (7.44% RSD), respectively. Overall, the established EESI-MS/MS method has been demonstrated suitable for sensitive and rapid (<2 min per sample) quantitative detection of malachite green in various aqueous media, indicating its potential for online real-time monitoring of real life samples.

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Section: Introductionmentioning

confidence: 99%

Quantitative detection of trace malachite green in aquiculture water samples by extractive electrospray ionization mass spectrometry

Fang¹,

Yang²,

Chingin³

et al. 2016

Preprint

View full text Add to dashboard Cite

show abstract

“…Frequently, the multivariate calibration methods like partial least squares (PLS) (Martens and Naes 1989;Geladi and Kowalski 1986) have been applied to mixtures without resorting to time-consuming chemical separation like chromatography. PLS has been successfully used for the simultaneous determination of pollutants in water and environmental samples (Gholivand et al 2012;An et al 2010;Gao et al 2011;Sarnacchiaro et al 2012).…”

Section: -N (Environmental Protection Agency 1991) the Nationalmentioning

confidence: 99%

Introduction of a spectrophotometric method for simultaneous determination of nitrite and nitrate in water samples using partial least squares

Shariati-Rad

Irandoust

Haghighi

2015

Int. J. Environ. Sci. Technol.

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A simple and sensitive spectrophotometric method for simultaneous determination of nitrite and nitrate was introduced. The method is based on the reaction of nitrite and nitrate with 2,4-xylenol as reagent in the concentrated sulfuric acid. Calibration curves were linear in the range of 0.2-20.0 and 0.5-7.0 mg L -1 for nitrite and nitrate, respectively. Due to the severe spectral overlapping of the reaction products of two anions with 2,4-xylenol, partial least squares (PLS) was used for simultaneous determination of nitrite and nitrate in the mixtures. For calibration and validation, 25 binary mixtures of nitrite and nitrate (17 calibration and eight external test samples) were designed by simplex lattice design with lattice degree of one. PLS models with Q 2 values of 0.988 and 0.976 were constructed for nitrite and nitrate, respectively. The validated models were used to analyze real water samples. With the recommended method, simultaneous determination of nitrite and nitrate in water samples is possible with satisfactory results.

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“…Over the years, an increasing number of analytical techniques such as spectrophotometry [6,7,8], high performance liquid chromatography (HPLC) [9,10,11], capillary electrophoresis Raman spectroscopy (CE-RS) [12], liquid chromatography tandem mass spectrometry (LC/MS n ) [2,13,14] and RNA-Aptamer–based assay [15] have been adapted for the detection of MG in various water matrices. Although the aforementioned techniques are considered as routine MG detection techniques, they are time-consuming and require complicated sample pretreatment (e.g., extraction, pre-concentration, derivatization, etc.).…”

Section: Introductionmentioning

confidence: 99%

Quantitative Detection of Trace Malachite Green in Aquiculture Water Samples by Extractive Electrospray Ionization Mass Spectrometry

Fang

Yang

Chingin

et al. 2016

IJERPH

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Exposure to malachite green (MG) may pose great health risks to humans; thus, it is of prime importance to develop fast and robust methods to quantitatively screen the presence of malachite green in water. Herein the application of extractive electrospray ionization mass spectrometry (EESI-MS) has been extended to the trace detection of MG within lake water and aquiculture water, due to the intensive use of MG as a biocide in fisheries. This method has the advantage of obviating offline liquid-liquid extraction or tedious matrix separation prior to the measurement of malachite green in native aqueous medium. The experimental results indicate that the extrapolated detection limit for MG was ~3.8 μg·L−1 (S/N = 3) in lake water samples and ~0.5 μg·L−1 in ultrapure water under optimized experimental conditions. The signal intensity of MG showed good linearity over the concentration range of 10–1000 μg·L−1. Measurement of practical water samples fortified with MG at 0.01, 0.1 and 1.0 mg·L−1 gave a good validation of the established calibration curve. The average recoveries and relative standard deviation (RSD) of malachite green in lake water and Carassius carassius fish farm effluent water were 115% (6.64% RSD), 85.4% (9.17% RSD) and 96.0% (7.44% RSD), respectively. Overall, the established EESI-MS/MS method has been demonstrated suitable for sensitive and rapid (<2 min per sample) quantitative detection of malachite green in various aqueous media, indicating its potential for online real-time monitoring of real life samples.

show abstract

Simultaneous spectrophotometric determination of trace amount of malachite green and crystal violet in water after cloud point extraction using partial least squares regression

Cited by 115 publications

References 33 publications

Quantitative detection of trace malachite green in aquiculture water samples by extractive electrospray ionization mass spectrometry

Quantitative detection of trace malachite green in aquiculture water samples by extractive electrospray ionization mass spectrometry

Introduction of a spectrophotometric method for simultaneous determination of nitrite and nitrate in water samples using partial least squares

Quantitative Detection of Trace Malachite Green in Aquiculture Water Samples by Extractive Electrospray Ionization Mass Spectrometry

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