Quantitative structure-retention relationships of the chromatographic retentions of phthalic acid ester contaminants in foods.
J Sep Sci
; 42(17): 2771-2778, 2019 Sep.
Article
em En
| MEDLINE
| ID: mdl-31216092
ABSTRACT
The harmful health effects caused by phthalic acid esters have been supported from the increasing scientific evidence, developing the efficient methodologies to monitor the levels of phthalic acid esters in various foods become especially important from the aspects of human exposure assessment and their migration mechanistic understanding. In this study, quantitative structure-retention relationship studies on both the gas and liquid chromatographic retention times of 23 phthalic acid esters were performed by genetic function approximation, and the optimal quantitative structure-retention relationship models (r2 > 0.980, r2 CV > 0.960, and r2 pred > 0.865) passed the statistical tests of cross-validation, randomization, external prediction, Roy' rm 2 metrics, Golbraikh-Tropsha' criteria and applicability domain. The established predictive models elucidate the structural requirements for the retention of phthalic acid esters over different chromatographic columns, which were finally used to predict the retention times of 11 new phthalic acid esters. Hopefully, this work could provide useful guidelines for better understanding and accurate prediction of the retention behavior of undetermined phthalic acid esters when lacking standard samples or under poor experimental conditions, and make the simultaneous identification and quantification of numerous phthalic acid esters possible.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácidos Ftálicos
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Contaminação de Alimentos
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Ésteres
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Análise de Alimentos
Tipo de estudo:
Clinical_trials
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Prognostic_studies
Idioma:
En
Revista:
J Sep Sci
Ano de publicação:
2019
Tipo de documento:
Article