3) Onoda, Y., Imamura, M., Utility of basic lead acetate for analysis of pesticides residues in tea infusion. Nihon Noyaku Gakkaishi (J. Pesticide Science), 5, 101-105 (1980).
4) Fujino, Y., “Shokuhin Kagaku Gairon”, Tokyo, Shokabou, 1970, p. 110-111.