Skip to Content
Merck
  • GC-MS Screening for the Identification of Potential Migrants Present in Polymeric Coatings of Food Cans.

GC-MS Screening for the Identification of Potential Migrants Present in Polymeric Coatings of Food Cans.

Polymers (2019-12-19)
Antía Lestido Cardama, Raquel Sendón, Juana Bustos, M Isabel Santillana, Perfecto Paseiro Losada, Ana Rodríguez Bernaldo de Quirós
ABSTRACT

The coatings used in cans can release complex chemical mixtures into foodstuffs. Therefore, it is important to develop analytical methods for the identification of these potential migrant compounds in packaged food to guarantee the compliance with European food packaging legislation and ensure consumer safety. In the present work, the type of coating in a total of twelve cans collected in Santiago de Compostela (Spain) were evaluated using an ATR (attenuated total reflectance)-FTIR spectrometer. These samples were analysed after extraction with acetonitrile in order to identify potential migrants through a screening method by gas chromatography coupled to mass spectrometry (GC-MS). A total of forty-seven volatile and semi-volatile compounds were identified in these samples, including plasticizers, photoinitiators, antioxidants, lubricants, etc. Then, in a second step, a targeted analysis was carried out for the simultaneous determination of 13 compounds, including bisphenols (BPA, BPB, BPC, BPE, BPF, BPG) and BADGEs (BADGE, BADGE.H2O, BADGE.2H2O, BADGE.HCl, BADGE.2HCl, BADGE.H2O.HCl, cyclo-di-BADGE) by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) with atmospheric pressure chemical ionisation (APCI) source. Among all the bisphenols analysed, only the bisphenol A was detected in four samples; while cyclo-di-BADGE was the predominant compound detected in all the samples analysed.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
D.E.R. 332, used as embedding medium
Supelco
Bisphenol A (2,3-dihydroxypropyl) glycidyl ether, analytical standard
Supelco
Bisphenol A (3-chloro-2-hydroxypropyl) glycidyl ether, analytical standard
Supelco
Bisphenol A bis(3-chloro-2-hydroxypropyl) ether, analytical standard
Sigma-Aldrich
Bis(4-hydroxyphenyl)methane, 98%
Supelco
Bisphenol A (3-chloro-2-hydroxypropyl) (2,3-dihydroxypropyl) ether, analytical standard
Supelco
Bisphenol A bis(2,3-dihydroxypropyl) ether, analytical standard
Supelco
Bisphenol B, analytical standard