エネルギー分散型蛍光X線分析法による昆布佃煮中ヨウ素の簡易定量分析法

概要

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We have established the quick and simplified assay method of iodine in cooked kombu using the technique of energy dispersive X-ray fluorescence spectrometry (EDXRF). We have examined the second target for iodine and the assay condition for the fundamental parameter (FP). We have decided to use Al_2O_3 as the second target for iodine, the cellulose as the balance ingredient, fixing water to 50%. Iodine contents of the commercial cooked kombu were assayed by this method. The iodine contents were 35-532μg/g, showing a good consistent with those done by the conventional gas liquid chromatographic method. This new method needs no pre-processing before the assay, making the assay operation simple and short-time. And many kind of elements can be measured at the same time. We hope this new method would be widely utilized in stead of the conventional gas liquid chromatographic method.
2010-04-14