000			00301nam a2200097Ia 4500
001			MPKV112634
008			120911s9999 xx 000 0 und d
245			_aJournal of association of analytical chemists Vol.73 No.1-3 _c;
246			_aJournal of association of analytical chemists Vol.49
260			_c1990
999			_c75909 _d75909