Determination of Iodine in Foods by Inductively Coupled Plasma Mass Spectrometry After Tetramethylammonium Hydroxide Extraction

In this study, the determination of iodine in 123 different types of foods was conducted. Iodine-selective electrode, microwave digestion/inductively coupled plasma mass spectrometry and tetramethylammonium hydroxide extraction/ inductively coupled plasma mass spectrometry (TMAH/ICP-MS) methods were tested to achieve the highest recoveries for the determination of iodine. Among them, TMAH/ICP-MS method was the most effective with respect to analytical recoveries (90-99%), limits of detection (0.013 [micro]g/kg) and quantification (0.04 [micro]g/kg) values. The intra- and inter-day relative standard deviations for iodine SRM were
Author(s): Jinbong Hwang [sup.1], Ji-Su Park [sup.1], So Young Kim [sup.1], Nho-Eul Song [sup.1], Miyoung Yoo [sup.1], Youngmin Choi [sup.2], Jin-Sik Nam [sup.3], Dongwon Seo [sup.1] Author Affiliations: (1) grid.418974.7, [...]