DETERMINATION OF BARIUM IN THE PRESENCE OF A LARGE AMOUNT OF CALCIUM BY MEANS OF THE COMBINATION OF THE SOLVENT EXTRACTION BY 18-CROWN-6 WITH THE ATOMIC ABSORPTION SPECTROPHOTOMETRY
1982 ◽
Vol 55
(11)
◽
pp. 3464-3467
◽
1977 ◽
Vol 284
(1)
◽
pp. 41-41
◽