00839nam a2200193Ia 4500 CTU_160385 210402s9999 xx 000 0 und d 630.243 O.32 Offical methods of analysis of the Association of official analytical chemists Edited by Sidney Williams Virginia Association Offical Analytical Chemists 1984 There are the new teachniques appearing in this edition are inductively coupled plasma emission spectroscopy for simultaneous multielement determinations, and hydrophobic grid membrane filter methods for enumeration of coliforms in foods. Agricultural chemistry,Chemistry, Analytic Technique Bạch Trúc Trung tâm Học liệu Trường Đại học Cần Thơ