Extractive spectrophotometric analysis of potassium in pharmaceutical formulations using 18-crown-6 and picrate.
Raggi
M A
MA
Cavrini
V
V
Di Pietra
A M
AM
Nobile
L
L
D043844:Crown Ethers; D004988:Ethers, Cyclic; D010851:Picrates; D011188:Potassium / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet
D043844:Crown Ethers; D004988:Ethers, Cyclic; D010851:Picrates; C015762:18-crown-6; D011188:Potassium