Determination of chlorinated acid herbicides and related compounds in water by capillary electrophoresis–electrospray negative ion mass spectrometry

Song, Xinbei; Budde, William L.

doi:10.1016/s0021-9673(98)00801-2

Cited by 52 publications

(24 citation statements)

References 22 publications

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“…by Lee et al [6] and since then, several groups of pesticides have been determined by this technique [2,3,[7][8][9]. Nowadays, among the different interfaces developed to couple CE with MS, electrospray ionization (ESI) [10] is the most frequently used.…”

Section: Introductionmentioning

confidence: 99%

Analysis of pesticides in soy milk combining solid‐phase extraction and capillary electrophoresis‐mass spectrometry

Hernández-Borges

Rodríguez‐Delgado

García-Montelongo

et al. 2005

J of Separation Science

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In this work, the determination of a group of triazolopyrimidine sulfoanilide herbicides (cloransulam-methyl, metosulam, flumetsulam, florasulam and diclosulam) in soy milk by capillary electrophoresis-mass spectrometry (CE-MS) is presented. The main electrospray interface (ESI) parameters (nebulizer pressure, dry gas flow rate, dry gas temperature and composition of the sheath liquid) are optimized using a central composite design. To increase the sensitivity of the CE-MS method, an off-line sample preconcentration procedure based on solid-phase extraction (SPE) is combined with an on-line stacking procedure (i.e. normal stacking mode, NSM). Samples could be injected up to 100 seconds, providing limits of detection (LODs) down to 74 μg/L, i.e., in the low ppb level, with relative standard deviation values (RSD, %) between 3.8% and 6.4% for peak areas for the same day, and between 6.5% and 8.1% for three different days. The usefulness of the optimized SPE-NSM-CE-MS procedure is demonstrated through the sensitive quantification of the selected pesticides in soy milk samples.

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Section: Introductionmentioning

confidence: 99%

Analysis of pesticides in soy milk combining solid‐phase extraction and capillary electrophoresis‐mass spectrometry

Hernández-Borges

Rodríguez‐Delgado

García-Montelongo

et al. 2005

J of Separation Science

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“…In response to these challenges the research involving the application of CE to pesticide and antibiotic residues in real food samples has been innovative, robust and more importantly, relevant. The ability of CE to resolve complex standard mixtures of antibiotics and pesticides has been well established [41][42][43], however, the real challenge for CE has been to detect these compounds at trace levels by employing a number of strategies including: more sensitive or selective detection, precolumn concentration techniques, on-column concentration techniques and often a combination of these. Having gained the sensitivity required, these methods must then be applied to real samples (or fortified samples) to demonstrate the applicability of the method.…”

Section: Organic Contaminantsmentioning

confidence: 99%

Determination of additives and organic contaminants in food by CE and CEC

Boyce¹

2007

Electrophoresis

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The application of CE to the analysis of additives and organic contaminants in food since 2001 has been reviewed. Additives included in the review are dyes, preservatives, antioxidants and sweeteners. Organic contaminants included in the review are pesticides, antibiotics and those produced during processing or cooking food. The review highlights the strategies and approaches adopted in making CE suitable for the determination of analytes at residue level and in complicated matrices.

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“…It is known that exposure to high dose of phenoxy acid herbicides may cause health risks. Song and Budde [70] developed a CE-ESI-MS method for the analysis of 16 phenoxy acid herbicides and several acidic phenols in fortified drinking water. Even though no sample preconcentration techniques were used, LODs were between 8 and 250 ng/mL.…”

Section: Pollutants and Other Exogenous Compoundsmentioning

confidence: 99%

Capillary electrophoresis‐mass spectrometry in food analysis

Simó¹,

Barbas

Cifuentes³

2005

Electrophoresis

116

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This work provides an updated overview (including works published till June 2004) on the principal applications of capillary electrophoresis-mass spectrometry (CE-MS) together with their main advantages and drawbacks in food science. Thus, analysis of amino acids, peptides, proteins, carbohydrates, or polyphenols by CE-MS in different foods is reviewed. Also, other natural compounds (e.g., alkaloids) and toxins analyzed by CE-MS in foods are revised. Moreover, exogenous substances with a potential risk for human health (e.g., pesticides, drugs) detected in foods by CE-MS are included in this work. The usefulness of CE-MS for food analysis and the information that this coupling can provide in terms of processing, composition, authenticity, quality, or safety of foods is also discussed.

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Determination of chlorinated acid herbicides and related compounds in water by capillary electrophoresis–electrospray negative ion mass spectrometry

Cited by 52 publications

References 22 publications

Analysis of pesticides in soy milk combining solid‐phase extraction and capillary electrophoresis‐mass spectrometry

Analysis of pesticides in soy milk combining solid‐phase extraction and capillary electrophoresis‐mass spectrometry

Determination of additives and organic contaminants in food by CE and CEC

Capillary electrophoresis‐mass spectrometry in food analysis

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