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- Title
Simultaneous chromatographic analysis of photoinitiators and amine synergists in food contact materials.
- Authors
Lago, M.; Rodríguez-Bernaldo de Quirós, A.; Sendón, R.; Bustos, J.; Santillana, M.; Paseiro, P.
- Abstract
Photoinitiators (PIs) are components of UV-cured inks widely used in printing of food packaging. These substances can migrate into food and may be a hazard to human health. High-performance liquid chromatography with diode-array detection (HPLC-DAD) has been used for analysis of PIs and amine synergists in food packaging. Analysis was performed with a Kromasil C18 column (250 mm × 3.2 mm i.d., 5 μm particle size) with a binary mobile phase gradient prepared from acetonitrile and Milli-Q water. The flow rate was 0.5 mL min. The method enables separation of fourteen PIs and amine synergists in a single run. The method was validated for linearity, repeatability, and limits of detection and quantification. Excellent sensitivity (LODs ≤ 1.56 μg dm) and appropriate repeatability (RSD ( n = 10) <0.9 %) were achieved. Different types of food packaging material including plastic films, cardboard, and cans were analyzed and PIs were detected in 47 % of the samples tested ( n = 17). Positive samples were confirmed by use of LC-MS-MS in positive electrospray ionization (ESI) mode.
- Subjects
MOBILE phase (Chromatography); FOOD packaging equipment; AMINES; HIGH performance liquid chromatography; LIQUID chromatography-mass spectrometry; ELECTROSPRAY ionization mass spectrometry
- Publication
Analytical & Bioanalytical Chemistry, 2014, Vol 406, Issue 17, p4251
- ISSN
1618-2642
- Publication type
Academic Journal
- DOI
10.1007/s00216-014-7792-x