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aconitine/dichloromethane
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3 rezultatov
[Determination of the main alkaloids in wu tou (aconite) by TLC-densitometry].
Samo registrirani uporabniki lahko prevajajo članke
Prijava / prijava
A method of TLC densitometry was established in order to determine the main alkaloids: mesaconitine, aconitine and hypaconitine in Aconite root. The powdered sample was alkalinized by ammonia and macerated with ether for 24 h. The mixture was then centrifuged, the residue was washed three times each
Partial synthesis of 6'-hydroxycinchonine and its antiarrhythmic activity in mice.
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Prijava / prijava
The synthesis of 6'-hydroxycinchonine [8R,9S)-cinchonan-6',9-diol] was achieved by demethylating quinidine with boron tribromide in dichloromethane at -75 degrees C. The antiarrhythmic activities of 6'-hydroxycinchonine and quinidine were compared following the infusion of aconitine into the tail
Studies on the stability of diester-diterpenoid alkaloids from the genus Aconitum L. by high performance liquid chromatography combined with electrospray ionisation tandem mass spectrometry (HPLC/ESI/MSn).
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Prijava / prijava
The stability of diester-diterpenoid alkaloids (DDA) from plants of the genus Aconitum L. has been studied in different solvents and pH buffers. The HPLC/ESIMS method for analysing the concentration of DDA was established and DDA's decomposition products were elucidated by HPLC/ESI-MS/MS(n). In
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