HPTLC determination of vasicine and vasicinone in Adhatoda vasica

C Das, R Poi, A Chowdhury - Phytochemical Analysis: An …, 2005 - Wiley Online Library
A simple high‐performance thin‐layer chromatographic (HPTLC) method has been
developed for the simultaneous determination of the pharmacologically important …

Comparative study of fourteen alkaloids from Uncaria rhynchophylla hooks and leaves using HPLC-diode array detection-atmospheric pressure chemical ionization …

J Qu, T Gong, B Ma, L Zhang, Y Kano… - Chemical and …, 2012 - jstage.jst.go.jp
The purpose of the study is to compare alkaloid profile of Uncaria rhynchophylla hooks and
leaves. Ten oxindole alkaloids and four glycosidic indole alkaloids were identified using …

Simultaneous determination of 11 alkaloids in rat plasma by LC-ESI-MS/MS and a pharmacokinetic study after oral administration of total alkaloids extracted from …

G Wang, H Wang, Z Lin, L Hou, JY Wang… - Journal of …, 2022 - Elsevier
Ethnopharmacological relevance Nauclea officinalis, a widely used Li medicine, has been
used for the treatment of cold, fever, bronchitis, pneumonia, acute tonsillitis, and other …

Supercritical fluid extraction of quinolizidine alkaloids from Sophora flavescens Ait. and purification by high-speed counter-current chromatography

JY Ling, GY Zhang, ZJ Cui, CK Zhang - Journal of Chromatography A, 2007 - Elsevier
Supercritical fluid extraction (SFE) was used to extract quinolizidine alkaloids from Sophora
flavescens Ait.(Kushen). An orthogonal test L9 (3) 4 including pressure, temperature, flow …

Direct characterization of isoquinoline alkaloids in a crude plant extract by ion-pair liquid chromatography–electrospray ionization tandem mass spectrometry …

N Fabre, C Claparols, S Richelme, ML Angelin… - … of Chromatography A, 2000 - Elsevier
An ion-pair HPLC–ESI-MS–MS method has been developed for the direct and rapid
characterization of isoquinoline alkaloids in a crudely purified extract of the aerial parts of …

Quinolizidine alkaloids from the roots of Sophora flavescens

JC Li, ZJ Zhang, D Liu, MY Jiang, RT Li… - Natural Product …, 2022 - Taylor & Francis
Seventeen quinolizidine alkaloids, including a new matrine-type one, sophcence A (1), were
isolated from the roots of Sophora flavescens Alt. The structure of compound 1 was …

Structural Characterisation of Alkaloids in Leaves and Roots of Stephania kwangsiensis by LC‐QTOF‐MS

Y Shangguan, J He, Y Kang, Y Wang… - Phytochemical …, 2018 - Wiley Online Library
Introduction The tuberous roots of Stephania kwangsiensis, which contain bioactive
alkaloids, are used as a traditional Chinese medicine. Overexploitation of the roots has …

The classification and identification of complex chemical compositions in yanhusuo herb using UPLC-Q-TOF/MS

L Yuan, J Yin, M Tian, J Xie, Y Wang, Z Hou, Y Li… - Analytical …, 2016 - pubs.rsc.org
The yanhusuo herb used in our study is derived from the yanhusuo's dried tubers, which
belong to the Poppy Corydalis genus, and it is one of the traditional Chinese medicines …

Subcritical water extraction of alkaloids in Sophora flavescens Ait. and determination by capillary electrophoresis with field-amplified sample stacking

H Wang, Y Lu, J Chen, J Li, S Liu - Journal of pharmaceutical and …, 2012 - Elsevier
The extraction and determination of cytisine, sophocarpine, matrine, sophoridine and
oxymatrine in Sophora flavescens Ait. were performed using subcritical water extraction and …

A sensitive and specific HPLC-MS method for the determination of sophoridine, sophocarpine and matrine in rabbit plasma

Y Wu, J Chen, Y Cheng - Analytical and bioanalytical chemistry, 2005 - Springer
A sensitive and specific method was developed for the determination of sophoridine (SRI),
sophocarpine (SC) and matrine (MT) in rabbit plasma by HPLC-MS. After an administration …