| Titre : |
Influence of the chromatographic conditions of the EN ISO 17226-1 standard "determination of formaldehyde content in leather. Part 1. Quantification by HPLC” on the robustness of the method |
| Type de document : |
texte imprimé |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 55-61 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Chimie analytique -- Normes
Chromatographie
Cuir -- Teneur en formaldéhyde
Cuirs et peaux -- Analyse
Normalisation
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Given the carcinogenic character of formaldehyde, it should be reliably determined in any substrate. The EN ISO 17226 Standard is the Official Method to quantify formaldehyde in leather using either the chromatographic or the colorimetric methods. In cases of discrepancy between results, according to the ISO Organization, preference should be given to the chromatographic method (EN ISO 17226-1 Standard) instead of the colorimetric one (EN ISO 17226-2 Standard). The EN ISO 17226-1 Standard recommends chromatographic conditions of column, mobile phase composition and flow rate.
The paper studies the influence of changes in flow rate, composition of the mobile phase and separating columns recommended by the EN ISO 17226-1 Standard for the determination of formaldehyde content in leather. It has been made relevant that small variations in the flow rate and differences in mobile phase compositions ranging from 35/65 to 45/55 Water/Acetonitrile does not significantly affect the results of formaldehyde concentration.
As regards the different separating columns, non-significant differences between them were observed. However, considering the effectiveness and the retention time of the separating columns, the solid-core particle (Cortecs®C18) column can be recommended because it has in excess the capacity to separate the formaldehyde peak from that of the residual DNPH reagent in less than 2 minutes which is lower than those of the other columns tested. Consequently, the productivity of the analytical laboratories is improved. |
| Note de contenu : |
- Aim of the work
- Influence of the chromatographic conditions of the EN ISO 17226-1 standard "Determination of formaldehyde content in leather. Part 1. Quantification by HPLC" in the robustness of the method
- MATERIALS AND METHODS : Influence of the flow rate - Influence of the composition of the mobile phase - Influence of the separating columns : retention time and effectiveness |
| En ligne : |
https://drive.google.com/file/d/1OfV9TN-H3pjk1Mv92_8owQVm4AJABO5_/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31718 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIV, N° 2 (02/2019) . - p. 55-61
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Influence of the chromatographic conditions of the EN ISO 17226-1 standard "determination of formaldehyde content in leather. Part 1. Quantification by HPLC” on the robustness of the method in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 2 (02/2019)
