Migrating components in a polyurethane laminating adhesive identified using gas chromatography/mass spectrometry

Athenstädt, Behnusch; Fünfrocken, Michael; Schmidt, Torsten

doi:10.1002/rcm.6286

Cited by 20 publications

(9 citation statements)

References 43 publications

(50 reference statements)

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“…This is attributed to the presence of isomers or substances with the same composition but different structure or oligomers with different identities [13] as well as oligomers high MW fragmenting in the source to give same fragment compound but at different retention time. Most of the oligomers correspond to linear structures, but cyclic structures were also identified, which is consistent with previous literature in can coatings [5,13] and also in certain adhesives employed for packaging [28,29].…”

Section: Analysis Of Polyester Coating Extract By Hplc-dad/ms Hplc-dsupporting

confidence: 90%

Identification of unknown compounds from polyester cans coatings that may potentially migrate into food or food simulants

Paseiro-Cerrato

MacMahon

Ridge

et al. 2016

Journal of Chromatography A

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Cross-linked polyester resins are being introduced into the market as alternatives to epoxy resins as coatings for metal food cans. Identification of potential migrants, from these coatings into food, is a significant analytical challenge due to the diversity of substances employed in the manufacture of the coatings. However, such identification is required to assess migration from the can coating into the food and quantify dietary exposure. Polyester can coatings were extracted with acetonitrile at 40°C for 24h and the extracts were analyzed by a variety of analytical techniques, including GC-MS, HPLC-DAD/MS, HPLC-DAD/CAD and UHPL C-HRMS. Twenty nine non-volatile oligomers were tentatively identified using retention times, UV spectra, and accurate mass measurements. Identified oligomers suggest the coating in use for food cans is a polyester coating and is mainly based on the monomers isophthalic acid, terephthalic acid and nadic acid. To give confidence in the identification, one of the tentatively identified oligomer was synthetized and analyzed by (13)C and (1)H NMR and UHPL C-HRMS. The NMR and HRMS results, confirmed the presence of this compound in the can extracts. Finally, to determine if rapid, direct detection of the oligomers was practical, the coatings were analyzed by DART-HRMS. Twenty three out of the 29 oligomers were identified in the coating by direct measurement with DART-HRMS in few minutes.

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Section: Analysis Of Polyester Coating Extract By Hplc-dad/ms Hplc-dsupporting

confidence: 90%

Identification of unknown compounds from polyester cans coatings that may potentially migrate into food or food simulants

Paseiro-Cerrato

MacMahon

Ridge

et al. 2016

Journal of Chromatography A

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“…17 With BPA non-intent (BPANI), migration studies have been carried out on coatings of similar chemistry, 18,19 as is common with all new coating formulations, with a multitude of analytical techniques used such as gas chromatography and mass spectrometry. 20 While these methods of interaction are relatively well reported, the effect of the simulant solution/foodstuff on the adhesion of a coating to the substrate, or the substrate itself post-retort, has not been reported in depth. Some work has been conducted exploring the delamination mechanism of an epoxy coating from a steel substrate, using electrochemical impedance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS) to determine than an acid treatment improves the resistance against cathodic delamination, 21 most notably in a NaCl solution.…”

Section: Manymentioning

confidence: 99%

“…With BPA non‐intent (BPANI), migration studies have been carried out on coatings of similar chemistry, as is common with all new coating formulations, with a multitude of analytical techniques used such as gas chromatography and mass spectrometry . While these methods of interaction are relatively well reported, the effect of the simulant solution/foodstuff on the adhesion of a coating to the substrate, or the substrate itself post‐retort, has not been reported in depth.…”

Section: Introductionmentioning

confidence: 99%

Food packaging simulant failure mechanisms in next generation steel packaging

et al. 2019

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Legislative pressures have led to the mature dominant chromium-coated steel (ECCS) substrate and epoxy phenolic lacquer replacement in Europe. An investigation was carried out to examine the interaction between a steel surface engineered with a novel, developmental substrate coated using Cr (III)-based electrolytes and the food stuff being canned. Samples of lacquered material were subjected to a typical retort process (121°C for 90 minutes) and examined using a variety of laboratory analytical techniques. The foodstuff being packaged has a significant impact on the substrate/lacquer adhesion with clear differences in failure mechanisms between foodstuffs. There is clear evidence of chemical species transfer through the next generation lacquer, and this can instigate corrosion at the surface where incomplete chromium coverage leads to exposed iron. In general, the novel developmental material exhibits lower adhesive properties and shows a greater sensitivity to the foodstuff, although this is largely attributed to the homogeneity of the coverage. The novel substrate proves to be a promising alternative to ECCS due to REACH legislation, but improvement is required to achieve equivalent performance.

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“…Although in the most common applications, the adhesive is not in direct contact with the packed food, it has been demonstrated that volatile and nonvolatile compounds can migrate from the adhesive through the different layers, except aluminium, to the food (Athenstadt et al, 2012;Aznar et al, 2011;Canellas et al, 2010a;Nerin et al, 2012;Sendon et al, 2012;Vera et al, 2011Vera et al, , 2013Vera et al, , 2014.…”

Section: Introductionmentioning

confidence: 99%

Risk assessment derived from migrants identified in several adhesives commonly used in food contact materials

Canellas

Vera

Nerı́n

2015

Food and Chemical Toxicology

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Migrating components in a polyurethane laminating adhesive identified using gas chromatography/mass spectrometry

Cited by 20 publications

References 43 publications

Identification of unknown compounds from polyester cans coatings that may potentially migrate into food or food simulants

Identification of unknown compounds from polyester cans coatings that may potentially migrate into food or food simulants

Food packaging simulant failure mechanisms in next generation steel packaging

Risk assessment derived from migrants identified in several adhesives commonly used in food contact materials

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