n-Dodecyl gallate (DG), n-octyl gallate (OG), n-propyl gallate (PG) and nordihydroguaiaretic acid (NDGA). Detection in fat. TLC method. (NMKL 84, 2. Ed., 1984)


This method describes detection of DG, OG, PG and NDGA. The detection limit is 0.001% (m/m). DG, OG, PG and NDGA are extracted from the fat by shaking with methanol. The methanol layer is evaporated to dryness, and the residue is dissolved in ethanol. The solution is analysed by thin layer chromatography, and the spots are visualized by spraying with phosphomolybdic acid solution.
  • Produkt ID: NMKL84
  • Copyright: NMKL
  • Edition: 1984, 2. ed.

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