Our rapid technological progress and at same time enhanced concern for the environment are guarantees that the number of analytical problem will certainly increase and become more complex. Let us hope that this timely textbook will make contribution to the education and training of future analytical chemists in order to have enough analytical problem-solvers qualified to meet these new challenges September 1997 President FecsOur rapid technological progress and at same time enhanced concern for the environment are guarantees that the number of analytical problem will certainly increase and become more complex. Let us hope that this timely textbook will make contribution to the education and training of future analytical chemists in order to have enough analytical problem-solvers qualified to meet these new challenges. September 1997 President FECS