Rapid Analysis of an Additive Medicinal Ingredient (Dried Thyroid) in Dietary Supplements

Dried thyroid added to dietary supplements was analyzed using liquid chromatographyl mass spectroscopy (LC/MS). However, rapid analysis of many dietary supplements on the market is difficult because the analysis uses expensive instruments (LC/MS) and requires a long time for pretreatment. The enzyme-linked immunosorbent assay (ELISA) is rapid, simple, and lowcost and thus suitable for processing many samples. In this study, we investigated rapid analysis of dried thyroid contained in dietary supplements with ELISA using commercial anti-thyroglobulin antibody. The analytical method using ELISA established in this study may be useful for the screening of dried thyroid added to dietary supplements.