Literature DB >> 7820273

Derivatization reactions for the determination of aflatoxins by liquid chromatography with fluorescence detection.

W T Kok1.   

Abstract

Various derivatization methods for the fluorometric detection of aflatoxins after separation by HPLC are reviewed. In normal-phase chromatography the sensitivity for aflatoxins B1 and B2 was improved by using special mobile phases or a flow cell packed with silica-gel particles. In the nowadays more popular reversed-phase methods, the fluorescence intensity of B1 and G1 can be increased by precolumn derivatization with trifluoroacetic acid or by postcolumn derivatization with iodine or bromine. Optimum conditions for the reactions are discussed. In terms of sensitivity, the three derivatization schemes give similar results. The methods are compared with respect to experimental convenience, selectivity, reproducibility and suitability for automation.

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Year:  1994        PMID： 7820273     DOI： 10.1016/0378-4347(94)00152-9

Source DB:  PubMed          Journal:  J Chromatogr B Biomed Appl        ISSN： 1572-6495


  10 in total

1.  Human Health Risk Associated with the Consumption of Aflatoxins in Popcorn.

Authors:  Tomás Morales-Moo; Estela Hernández-Camarillo; Magda Carvajal-Moreno; Manuel Vargas-Ortiz; Víctor Robles-Olvera; Marco Antonio Salgado-Cervantes
Journal:  Risk Manag Healthc Policy       Date:  2020-11-12

2.  Simple chromatographic determination of aflatoxins in Korean fermented soybean products doenjang, ganjang, and gochujang, with comparison of derivatization methods.

Authors:  So Young Woo; Hyun Ee Ok; Sang Yoo Lee; A-Yeong Jeong; Tae Kyun Jeong; Hyang Sook Chun
Journal:  Food Sci Biotechnol       Date:  2022-02-28       Impact factor: 2.391

3.  Novel aflatoxin derivatives and protein conjugates.

Authors:  Christian Cervino; Dietmar Knopp; Michael G Weller; Reinhard Niessner
Journal:  Molecules       Date:  2007-03-27       Impact factor: 4.411

4.  Simultaneous Determination of Twenty Mycotoxins in the Korean Soybean Paste Doenjang by LC-MS/MS with Immunoaffinity Cleanup.

Authors:  So Young Woo; So Young Ryu; Fei Tian; Sang Yoo Lee; Su Been Park; Hyang Sook Chun
Journal:  Toxins (Basel)       Date:  2019-10-12       Impact factor: 4.546

Review 5.  A Review: Sample Preparation and Chromatographic Technologies for Detection of Aflatoxins in Foods.

Authors:  Kai Zhang; Kaushik Banerjee
Journal:  Toxins (Basel)       Date:  2020-08-21       Impact factor: 4.546

6.  Interacting Abiotic Factors Affect Growth and Aflatoxin B1 Production Profiles of Aspergillus flavus Strains on Pistachio-Based Matrices and Pistachio Nuts.

Authors:  Alaa Baazeem; Esther Garcia-Cela; Angel Medina; Naresh Magan
Journal:  Front Microbiol       Date:  2021-01-20       Impact factor: 5.640

7.  Impacts of Gaseous Ozone (O3) on Germination, Mycelial Growth, and Aflatoxin B1 Production In Vitro and In Situ Contamination of Stored Pistachio Nuts.

Authors:  Alaa Baazeem; Angel Medina; Naresh Magan
Journal:  Toxins (Basel)       Date:  2022-06-17       Impact factor: 5.075

Review 8.  Mycotoxins Contamination in Rice: Analytical Methods, Occurrence and Detoxification Strategies.

Authors:  Ana Rita Santos; Filipa Carreiró; Andreia Freitas; Sílvia Barros; Carla Brites; Fernando Ramos; Ana Sanches Silva
Journal:  Toxins (Basel)       Date:  2022-09-19       Impact factor: 5.075

9.  Determination of Aflatoxin B1 in Feedstuffs without Clean-Up Step by High-Performance Liquid Chromatography.

Authors:  Sasiprapa Choochuay; Jutamas Phakam; Prakorn Jala; Thanapoom Maneeboon; Natthasit Tansakul
Journal:  Int J Anal Chem       Date:  2018-06-24       Impact factor: 1.885

10.  Effect of Acclimatization in Elevated CO2 on Growth and Aflatoxin B1 Production by Aspergillus flavus Strains on Pistachio Nuts.

Authors:  Alaa Baazeem; Angel Medina; Naresh Magan
Journal:  Microorganisms       Date:  2021-12-27
  10 in total

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