Determination of volatile organic compounds in materials from polystyrene intended for contact with food: comparison of HS-GS/MS and SPME-GC/MS techniques
Journal Title: Roczniki Państwowego Zakładu Higieny - Year 2018, Vol 69, Issue 3
Abstract
Background. Plastic materials intended for contact with food sometimes exhibit unfavorable organoleptic properties which is related to the presence of volatile organic compounds. These substances not only worsen organoleptic properties, but can be very harmful to humans health. For the sake of consumer safety, it is necessary to control such materials for the content of substances harmful to health, as well as the possibility of their migration to food. Therefore, there is a need to have an appropriate and verified analytical method that could be used in the routine analysis of volatile organic substances present in food contact materials. Objective. In this study, the possibilities of the application of HS-GC/MS and SPME-GC/MS analytical techniques for analyses of volatile organic compounds present in polystyrene food contact materials, demonstrating disadvantageous organoleptic properties were evaluated. Materials and methods. On the basis of sensory tests four types of food contact materials (plastic dishes) were selected for the study. The analytical measurement was performed by HS-GC/MS and SPME-GC/MS techniques parallel. Results. In quality examinations of samples the aliphatic and aromatic, saturated and unsaturated hydrocarbons, as well as other compounds, e.g. ketones contamination was estimated. For all the samples a quantitative analysis of the content of styrene, ethylbenzene and cyclohexane was carried out. Additionally, the optimization of SPME analysis parameters was carried out. It was assumed that the optimal SPME extraction conditions for this purposes are: extraction time of 15 - 30 min, extraction temperature of 80°C, CAR/PDMS fibre. Conclusions. The results of this study indicated that from two chosen analytical methods, definitely HS-GC/MS technique was more universal, as well as more comfortable and faster. Sometimes, however additional studies should be undertaken and then it is recommended to use the SPME-GC/MS technique optimized for our purposes.
Authors and Affiliations
Dominika Kubica, Karol Bal, Monika Kaczmarczyk, Alicja Kaszuba
Assessment of nutritional behaviours of children aged 7-12 attending to primary schools in Biala Podlaska, Poland
Background. Children and youth constitute a group that is particularly prone to the effects of improper diet. In the puberty period, numerous significant lifestyle choices are made, for instance regarding particular nutr...
The assessment of the ionizing radiation dose received by patients during some diagnostic X-ray examinations carried out on the basis of the working procedures in the health care entities
Background. X-ray examination is a popular and universally used injury and disease diagnostic method. A distinctive X ray examination feature is that it can be done quickly which is extremely important in case of the nee...
Utilization of services and referrals through dental outreach programs in rural areas of India. A two year study
Background. Oral health care services are often sparse and inconsistent in India therefore it is often difficult for poor people to get access to the oral health care services. The approach by dental institutions with th...
Analysis of the declared nutritional behaviors in a group of diabetology nurses educating patients about diabetes diet therapy
Background. The proper nutrition in diabetes is one of the crucial elements of therapy, but in practice, diet of diabetic individuals is commonly improperly balanced, that is associated with lack of nutritional knowledge...
Salivary cotinine levels as a biomarker for green tobacco sickness in dry tobacco production among Thai traditional tobacco farmers
Background. Dry Thai traditional tobacco (Nicotiana Tabacum L.) production involves a unique process: (a) picking tobacco leaves, (b) curing tobacco leaves, (c) removing stems of tobacco leaves, cutting leaves and puttin...