Perfluorinated compounds (PFCs) are used in manufacturing food contact materials, including non-stick cookware coatings and oil- and moisture-resistant paper coatings. The chemical stability of PFCs poses an issue for human safety, as they do not degrade well naturally and hence may accumulate in the body. In terms of food safety, since dietary intake is thought to be a major source of exposure to PFCs, it is necessary to assess the migration of PFCs from food packaging articles to food under typical cooking and storage conditions. An analytical method was developed for assessing the migration of 16 PFCs from food contact materials to food simulants using liquid chromatography-tandem mass spectrometry. The applicability of the method for regular inspection was assessed by monitoring 312 samples. Based on the results of the exposure assessment, all food contact materials deemed to be safe for use, which evaluated migrated concentrations and dietary food intake.

A polysaccharide-immobilized chiral stationary phase (CSP) was prepared by the surface-initiated atom transfer radical polymerization (SI-ATRP), in pyridine, of cellulose 2,3-bis(3,5-dimethylphenylcarbamate), having a polymerizable vinyl group, on the surface of SiO 2 support. The successful preparation of the CSP was confirmed via Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, X-ray photoelectron spectroscopy, elemental analysis and thermal analysis. The chiral recognition ability of the prepared CSP was evaluated with high-performance liquid chromatography using 10 racemates with various mobile phases of hexane/alcohol, hexane/tetrahydrofuran and hexane/chloroform. As a result, this CSP prepared using SI-ATRP can be used in tetrahydrofuran and chloroform solutions as eluents.

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This paper describes the preparation of the metallic affinity column by atom transfer radical polymerization of glycidyl methacrylate (GMA) on Wang resin surface. The metallic ions (Zr 4þ , Fe 3þ , and Pd 2þ ) were introduced after phosphonation of the epoxy group of the grafted poly(GMA) on Wang resin surface. The successful results on metallic ion-immobilized polymeric microsphere stationary phase were confirmed via Fourier transform infrared, scanning electron microscopy, X-ray photoelectron spectra (XPS), and inductively coupled plasma-atomic emission spectrometer. The resolution degree of the phosphonated casein and dephosphonated casein for Zr 4þ , Fe 3þ , and Pd 2þ affinity column was examined. The result shows that the resolution time (min) of the phosphonated casein was higher than that of the dephosphated casein on the Zr 4þ affinity column by liquid chromatography. However, the phosphonated casein and dephosphonated casein were not separated on the Fe 3þ affinity column and Pd 2þ affinity column by liquid chromatography.

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