Determination of heroin by means of the pitch of induced cholesteric mesophases.
A method is described for the determination of chromatographic fractions of heroin and strychnine in the mug and sub-mug range by measurement of the pitch and handedness of their induced cholesteric mesophases in MBBA and Phase IV, respectively.
Bertocchi
G
G
Istituto di Chimica Farmaceutica e Tossicologica, Facoltà di Farmacia, Università di Bologna, Italy.
Gottarelli
G
G
Prati
R
R