6European Parliament and Council Directive 2002/96/EC of 27 January 2003 on Waste Electrical and Electronic Equipment (WEEE). Official Journal L 37, 13/2/2003 P. 0024-0038.
7European Parliament and Council Directive 2002/95/EC of 27 January 2003 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RollS). Official Journal L 37, 13/2/2003 P. 0019-0023.
8Belarra M A, Belategui I, Lavilla I, et al. Talanta, 1998, 46: 1265.
9Hemmerlin M, Mermet J M, Bertucci M, et al. Speetrochim. Acta, B, 1997, 52: 421.
10Shinichi Chiba, Akiko Hokura, Izumi Nakai, Manabu Mizuhira, et al. Advances in X-Ray Chemical Analysis, 2004, 35: 1165.