Determination of metals in phospholipids by atomic-absorption spectrophotometry.
A procedure is described for the determination of sodium, potassium, calcium, magnesium and manganese in phospholipids by atomic-absorption spectrophotometry. The method uses a solution of phospholipid in isopentyl acetate; phosphate interference is controlled by the addition of aqueous lanthanum chloride solution homogenized with ethanol. Standards are prepared in a similar solvent mixture. A comparison between the described method and that of standard additions show it to be free of phospholipid matrix effects.
Montford
B
B
Chemical Technology Branch Atomic Energy of Canada Limited Whiteshell Nuclear Research Establishment Pinawa, ManitobaCanada.
Cribbs
S C
SC