Comparative study of ink photoinitiators in food packages using gas chromatography with vacuum ultraviolet detection and gas chromatography with mass spectrometry
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu srovnávací studie, časopisecké články
Grantová podpora
LO1305
Ministry of Education, Youth and Sports of the Czech Republic
IGA_PrF_2018_027
Palacky University
VUV Analytics, Inc
PubMed
30411839
DOI
10.1002/jssc.201800855
Knihovny.cz E-zdroje
- Klíčová slova
- food packaging, food safety, gas phase absorption spectroscopy, leaching, photoinitiators,
- MeSH
- benzofenony analýza MeSH
- fotosenzibilizující látky analýza MeSH
- inkoust * MeSH
- kontaminace potravin analýza MeSH
- obaly potravin * MeSH
- plynová chromatografie s hmotnostně spektrometrickou detekcí MeSH
- spektrofotometrie ultrafialová MeSH
- vakuum MeSH
- Publikační typ
- časopisecké články MeSH
- srovnávací studie MeSH
- Názvy látek
- benzofenony MeSH
- benzophenone MeSH Prohlížeč
- fotosenzibilizující látky MeSH
This work focused on the development and validation of the analytical procedure using gas chromatography equipped with vacuum-ultraviolet detection for the specific and sensitive determination of nine photoinitiators in food packages. Subsequently, a comparison of the combination of vacuum ultraviolet spectroscopy with gas chromatography and a developed gas chromatography with mass spectrometry method was performed. The vacuum-ultraviolet spectra of all tested photoinitiators were collected and found to be highly distinct, even for isomers. Under the optimal conditions, the limits of detection for nine photoinitiators ranged from 1 to 5 mg/L using vacuum ultraviolet detection and from 0.15 to 0.5 mg/L using mass spectrometric detection. Both techniques were successfully applied for screening of photoinitiators in seven kinds of food packages and the obtained data showed good agreement (the relative difference was between 3 and 18%). The variability in concentrations found in triplicate samples was assessed to be below 18%. Predominantly benzophenone was found in all analysed samples in the range of 0.31-4.23 mg/kg. It appears to be preferably selected by food packaging manufacturers. This study proposes a new simple and sensitive technique used for analysis of photoinitiators that could be a good alternative to gas chromatography with mass spectrometry.