000 00302nam a2200097Ia 4500
001 MPKV108834
008 120911s9999 xx 000 0 und d
245 _aJournal of association of analytical chemists Vol.70 No. 4-6
_c;
246 _aJournal of association of analytical chemists Vol.49
260 _c1987
999 _c72185
_d72185