Results 151 to 160 of about 84,269 (200)

Determination of opium alkaloids in opium by capillary electrophoresis

Journal of Pharmaceutical and Biomedical Analysis, 1995
Steen Honoré Hansen, S H Hansen, Inga Bjørnsdottir   +2 more
exaly   +3 more sources

Oripavine - A New Opium Alkaloid

Planta Medica, 1983
Oripavine was isolated from the dried capsules of a variety of PAPAVER SOMNIFERUM cultivated on Tasmania.
B, Nielsen, J, Röe, E, Brochmann-Hanssen   +2 more
openaire   +2 more sources

Spectrophotometric Determination of the Principal Alkaloids of Opium

Journal of the American Pharmaceutical Association (Scientific ed.), 1955
The spectra of four opium alkaloids; narceine, narcotine, papaverine, and thebaine with its acid decomposition products, were determined at various p H values. A method of assay for samples of opium concentrates is proposed that requires less time and a smaller sample than the existing methods.
M S, DYER, A J, McBAY
openaire   +2 more sources

Analysis of alkaloids in opium

Journal of Chromatography A, 1984
Abstract A rapid analytical procedure for the separation and quantification of the major alkaloids of opium is reported. Separation was effected by Celite column chromatography. Codeine, thebaine, papaverine, and noscapine were eluted in one fraction with an ether—light petroleum (b.p.
openaire   +1 more source

Opium alkaloids V. Structure of porphyroxine

Journal of Pharmaceutical Sciences, 1967
Porphyroxine is a monophenolic alkaloid isolated from opium. It contains a methyl acetal group and has three asymmetric centers. The position of the phenolic hydroxyl group has been determined by NMR spectroscopy. Evidence has been presented for the configuration at position-14.
E, Brochmann-Hanssen, K, Hirai
openaire   +2 more sources

Opium alkaloids IV. Isolation of isoboldine

Journal of Pharmaceutical Sciences, 1967
The aporphine alkaloid isoboldine has been isolated from opium. It has been identified by NMR and mass spectrometry and by comparison of its infrared spectrum with that of synthetic (±)-isoboldine. ORD measurements have shown that the isolated alkaloid has the absolute configuration corresponding to the ( S )-series.
E, Brochmann-Hanssen, B, Nielsen, K, Hirai   +2 more
openaire   +2 more sources

Opium Alkaloids XV: Isolation of Stepholidine

Journal of Pharmaceutical Sciences, 1975
A protoberberine alkaloid was isolated from opium and characterized as (-) 2, 10-dihydroxy-3,9-dimethoxytetrahydroprotoberberine by spectroscopic methods and by comparison with (-) stepholidine.
E, Brochmann-Hanssen, W J, Richter
openaire   +2 more sources

Methods of Analysis of Opium Alkaloids

2013
Ana M García-Campaña, Carmen Cruces-Blanco   +1 more
exaly   +2 more sources

A study of the alkaloids of Kirghiz opium

Chemistry of Natural Compounds, 1970
Morphine, codeine, narcotine, thebaine, papaverine, protopine, xanthaline, prophyroxine, bases with mp 267 and 263°C,l-canadine, and cryptopine have been isolated from Kirghiz opium.
I. A. Bessonova, Z. Sh. Faizutdinova, S. Yu. Yunusov   +2 more
openaire   +1 more source

Opium Alkaloids and Their Importance

2014
Ülkemizde ve dünyada tıbbi amaçla kullanılan afyonun üretimi haşhaş(Papaver somniferum L.) bitkisinden yapılmaktadır. Dünya haşhaş ekimi, Birleşmiş Milletler Teşkilatı’nın denetiminde yapılmaktadır. Birleşmiş Milletler Teşkilatı Türkiye, Hindistan, Avustralya, Fransa, İspanya, Macaristan, Çek Cumhuriyeti ve Çin’i yasal ana üretici ülkeler olarak ...
ARSLAN, Yusuf, KATAR, Duran, KAYAÇETİN, Fatma, SUBASI, İlhan   +3 more
openaire   +1 more source