Speciation study of aluminium in beverages by Competitive Ligand Exchange-Adsorptive Stripping Voltammetry.

Competitive Ligand Exchange-Adsorptive Stripping Voltammetry (CLE-AdSV) was used for determining the speciation of aluminium in commonly consumed beverages (water, tea, infusion, coffee, orange juice, tomato juice, beer and red wine). Aluminium determination involves the adsorption of Al-complexes with the ligand cupferron onto a hanging mercury drop electrode. All samples were studied at pH 6.

Evaluation of the migration of 15 photo-initiators from cardboard packaging into Tenax(®) using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).

Photo-initiators are widely used to cure ink on packaging materials used in food applications such as plastic films or cartonboards. In migration studies, food simulants are very often used to simulate food, like Tenax(®), which is the simulant for dry foodstuffs. In this paper a fast and reliable confirmation method for the determination of the following photo-initiators in Tenax(®) is described: benzophenone (BP), 4,4'-bis(diethylamino)benzophenone (DEAB), 2-chloro-9H-thioxanthen-9-one (CTX), 1-chloro-4-propoxy-9H-thioxanthen-9-one (CPTX), 2,4-diethyl-9H-thioxanthen-9-one (DETX), 2,2-dimethoxy-2-phenyl acetophenone (DMPA), 4-(dimethylamino)benzophenone (DMBP), 2-ethylanthraquinone (EA), ethyl-4-dimethylaminobenzoate (EDMAB), 1-hydroxylcyclohexyl phenyl ketone (HCPK), 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone (HMMP), 2-isopropyl-9H-thioxanthen-9-one (ITX), 4-methylbenzophenone (MBP), Michler's ketone (MK), and 4-phenylbenzophenone (PBZ).

Dietary exposure of the Belgian adult population to non-dioxin-like PCBs.

Non-dioxin-like polychlorinated biphenyls (ndl-PCBs), and some of their metabolites, might initiate neurological, neuroendocrinological, immunological and carcinogenic effects. Dietary exposure of the Belgian adult population to ndl-PCBs was investigated in this study. Foods from five food groups, collected in Belgium in 2008, were analyzed by GC-MS/MS for the six indicator PCBs (PCB 28, 52, 101, 138, 153 and 180).

Estimation of dietary aluminum exposure of the Belgian adult population: evaluation of contribution of food and kitchenware.

An exposure assessment was performed to estimate the usual daily intake of aluminum (Al) via food and kitchenware in the Belgian adult population. Food consumption data were retrieved from the National Food Consumption Survey. Measurements of Al were performed by Inductively Coupled Plasma-Atomic Emission Spectrometer on 552 pooled samples.

Modelling aluminium leaching into food from different foodware materials with multi-level factorial design of experiments.

To estimate the contribution of aluminium (Al) leaching from different materials used for food preparation and serving to the dietary Al intake, Al release from foodware typically used in everyday life was investigated using multilevel factorial design (MFD) of experiments. For Al characterisation, sample preparation and an analytical method using inductively coupled plasma atomic emission spectroscopy was developed and validated. Parameter influence (temperature: x₁, contact time: x₂, pH: x₃, salt concentration: x₄, viscosity: x₅), was evaluated with analysis of variance suggesting that the influence of viscosity is not significant compared to the other four studied parameters.