On-line concentration of s-triazine herbicides in micellar electrokinetic chromatography using a cationic surfactant

Lin, Chin‐Feng; Liu, Yu-Chih; Yang, Tzung-Ying; Wang, Ta-Zen; Yang, Chih-Chyau

doi:10.1016/s0021-9673(00)01269-3

Cited by 39 publications

(8 citation statements)

References 39 publications

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“…The determination of triazines and their decomposition products in environmental waters by MEKC has also been reported (Turiel et al, 2000). CE methods applied for the analysis of herbicides and plant growth regulators in water, food and soil has been previously revieweved (Eash and Bushway, 2000) and its application for the separation of triazines has been also reported (Lin et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Chromatographic determination of herbicide residues in various matrices

Cserháti

Forgács

Deyl

et al. 2004

Biomedical Chromatography

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Section: Introductionmentioning

confidence: 99%

Chromatographic determination of herbicide residues in various matrices

Cserháti

Forgács

Deyl

et al. 2004

Biomedical Chromatography

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“…According to the study of Lin et al, an acceptor phase conductivity of 1.2-1.4 times conductivity of BGS gave the optimum focusing effect of sweeping [24]. Taking the above factors into account, 100 mM H 3 PO 4 (0.40 ms/cm) with 1.2 times conductivity of BGS (0.34 ms/cm), was chosen as acceptor phase component.…”

Section: Influence Of Acceptor Phasementioning

confidence: 99%

Trace analysis of three antihistamines in human urine by on-line single drop liquid–liquid–liquid microextraction coupled to sweeping micellar electrokinetic chromatography and its application to pharmacokinetic study

Gao

Chen

et al. 2012

Journal of Chromatography B

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“…Some researchers used ultrasonic solvent extraction (USE), solid–liquid extraction (SLE), dispersive micro solid‐phase extraction (DMSPE), or matrix solid‐phase dispersion . There are published records of triazine determination by capillary electrophoresis (CE) with the online sample preconcentration technique or by micellar electrokinetic chromatography (MECK) …”

Section: Introductionmentioning

confidence: 99%

Optimization and validation of the kinetic spectrophotometric method for quantitative determination of the pesticide atrazine and its application in infant formulae and cereal‐based baby food

et al. 2019

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BACKGROUND: Pesticides are potentially toxic to humans and can produce both acute and chronic health effects, depending on the quantity and the ways in which a person is exposed. Exposure to pesticides can cause serious health problems. Infants and young children are particularly sensitive to these contaminants because their brains and organ systems are not fully developed. For this reason, it is important to determine the quantities of pesticides in baby food. RESULTS:The aim of this study was to develop a kinetic-spectrophotometric method for atrazine determination and to apply it to determine pesticide in baby-food samples, using solid-phase extraction (SPE) followed by the kinetic-spectrophotometric method and the high-performance liquid chromatography (HPLC) method. This method is based on the inhibition effect of atrazine (the oxidation of sulfanilic acid (SA) by hydrogen peroxide in the alkaline medium in the presence of the Co 2+ ion). Under the experimental conditions used, atrazine showed a linear dynamic range of 0.5 to 5.0 g mL −1 , and from 5.0 to 70.00 g mL −1 with relative standard deviations (RSD) from 1.91% to 9.41%. The limit of detection and the limit of quantification were 0.074 and 0.225 g mL −1 , respectively. The kinetic method was successfully applied to determine the atrazine concentration in spiked samples after SPE of samples. High-performance liquid chromatography was used to verify the results. CONCLUSION: The proposed method is highly sensitive, simple, easy, requires cheap reagents, and leads to good recovery levels. It is linear, precise, and accurate. It can be used successfully for the routine analysis of atrazine in infant formulae and cereal-based food samples. A chromatographic analytical-reagent-grade solvent, methanol with a purity of ≥ 99.9%, supplied by Baker (UK), was used for atrazine elution. The solvents, acetone ((CH 3 ) 2 CO) and acetonitrile (ACN), were super-purity solvents obtained from Baker. A J Sci Food Agric 2019; 99: 5424-5431

show abstract

On-line concentration of s-triazine herbicides in micellar electrokinetic chromatography using a cationic surfactant

Cited by 39 publications

References 39 publications

Chromatographic determination of herbicide residues in various matrices

Chromatographic determination of herbicide residues in various matrices

Trace analysis of three antihistamines in human urine by on-line single drop liquid–liquid–liquid microextraction coupled to sweeping micellar electrokinetic chromatography and its application to pharmacokinetic study

Optimization and validation of the kinetic spectrophotometric method for quantitative determination of the pesticide atrazine and its application in infant formulae and cereal‐based baby food

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