| Titre : |
Development of a headspace-solid phase micro extraction method for the analysis of volatile and semi-volatile organic compounds from polyurethane resins for leather finishing |
| Type de document : |
texte imprimé |
| Auteurs : |
Antonia Flores, Auteur ; Silvia Sorolla, Auteur ; Concepcio Casas, Auteur ; Rosa M. Cuadros, Auteur ; Anna Bacardit, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 290-297 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse quantitative (chimie)
Chromatographie en phase gazeuse
Composés organiques volatils -- Analyse
Cuirs et peaux -- Finition
Extraction (chimie)
Polyuréthanes
Spectrométrie de masse
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Volatile organic compounds (VOCs) and Semi-Volatile Organic Compounds (SVOCs) arise from the chemicals used in the various stages of the leather manufacturing process. An important aim of the tanning industry is to minimize or eliminate VOCs and SVOCs, without lowering the quality of leather.
This paper shows the development of a new headspace-solid phase micro extraction coupled with gas chromatography–mass spectrometry (HS-SPME/GC-MS) method for the identification of VOCs and SVOCs emitted by newly designed polymers for the leather finishing operation. These new polymers are polyurethane resins designed to reduce the VOC and SVOC concentration. This method enables a simple and fast determination of the qualitative and semi-quantitative content of VOCs and SVOCs in polyurethane-type finishing resins. The chemicals that are of concern in this paper are the following: Dipropylene glycol Monomethyl Ether (DPGME), DBE-3 (a mixture of dibasic esters) and Triethylamine (TEA). The test conditions that have been determined to carry out the HS-SPME assay are the following: incubation time (2 hours), extraction temperature and time (40°C; 5 minutes) and the desorption conditions (280°C, 50 seconds).
Ten samples of laboratory scale resins were tested by HS-SPME followed by gas chromatography (GC-MS). DPGME and DBE-3 (a mixture of dimethyl adipate, dimethyl glutarate and dimethyl succinate) have been identified effectively. The compounds are identified by a quantitative method using external calibration curves for the target compounds. The technique is not effective to determine the TEA compound, since the chromatograms shown poor resolution peaks for the standard. |
| Note de contenu : |
- EXPERIMENTAL : Chemicals and reagents - Chromatography - HS-SPME method
- OPTIMIZING THE HS-SPME/GC-MS TEST CONDITIONS : SPME fiber - Sample stirring - Sample preparation - Time exposure - Extraction conditions - Desorption and fiber reconditioning
- RESULTS : HS-SPME/GC-MS optimized method for VOV and SVOC determination - Analytical calibration and quantification
- Table 1 : Relation between the incubation time and eluted area for DPGME isomers
- Table 2 : Extraction time and eluted area for DPGME isomers
- Table 3 : Extraction temperature and eluted area for DPGME isomers
- Table 4 : Desorption temperature and eluted area for DPGME isomers
- Table 5 : Desorption time and eluted area for DPGME isomers
- Table 6 : Optimised conditions for the HS-SPME assay of polyurethane resins
- Table 7 : Identification of VOC compounds from NV004 by HS-SPME/GC-MS
- Table 8 : Calibration curves by external standard from the four target compounds
- Table 9 : Concentration of the target compounds in the resin samples by HS-SPME/GC-MS |
| DOI : |
https://doi.org/10.34314/jalca.v116i8.4362 |
| En ligne : |
https://drive.google.com/file/d/19a2FgbbF0GGCcFeDZvxeHmaljBNBVe1f/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36086 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVI, N° 8 (08/2021) . - p. 290-297
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