DOPA stability in plasma and plasma extracts.
Unextracted heparinized plasma samples containing L-DOPA can be refrigerated or frozen with negligible losses in drug for at least two weeks. This stability of L-DOPA in the sample obviates difficulties in collection and processing of plasma samples within clinical settings which may be remote from the analytical laboratory facilities.
D004295:Dihydroxyphenylalanine / Q000097:blood*; D004355:Drug Stability; D004356:Drug Storage; D005615:Freezing; D006801:Humans; D008722:Methods; D013997:Time Factors
D004295:Dihydroxyphenylalanine