Determination of styrene oligomers in instant noodles contained in a polystyrene container

We examined a quantitative analysis of a styrene oligomer 6 specimen in instant noodles contained in a polystyrene container. Therefore, we made six kinds of poly-deuterated styrene oligomers (surrogate) which coped in it from the viewpoint of chemosynthesis. Furthermore, we established a high-precision analytical procedure in an alimentary form of instant noodle in which the impurity which contains a noodle, an ingredient material, soup by combining extraction and purification is abundant in. This made an accretion recovery of surrogate that more than 80% can be secured indicator. It was confirmed in 17 kinds or instant noodles In ra containers that it had an accurate elusion amount of the styrene oligomers in the alimentary form which used a surrogate body represented by three kinds of PS material. Further, as for the instant noodles with a PS container as well which administered the decrease countermeasure of the styrene oligomer elusion amount, it was confirmed.