Results 31 to 40 of about 1,037 (167)

Simultaneous Determination of Purpurin, Munjistin and Mollugin in Rat Plasma by Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry: Application to a Pharmacokinetic Study after Oral Administration of Rubia cordifolia L. Extract

Molecules, 2016
A specific, simple, sensitive Ultra High Performance Liquid Chromatography-tandem Mass Spectrometry (UHPLC-MS/MS) method has been developed and validated for the simultaneous determination and pharmacokinetic study of purpurin, munjistin, and mollugin in
Mingjie Gao, Jing Yang, Zhibin Wang, Bingyou Yang, Haixue Kuang, Lu Liu, Liqian Wang, Chunjuan Yang   +7 more
doaj   +1 more source

LV.—On indigo-purpurin and indirubin [PDF]

J. Chem. Soc., Trans., 1879
n ...
openaire   +1 more source

UPLC-QTOF-MS Identification of the Chemical Constituents in Rat Plasma and Urine after Oral Administration of Rubia cordifolia L. Extract

Molecules, 2017
An effective ultra-performance liquid chromatography coupled with the quadrupole time-of-flight tandem mass spectrometry (UPLC/Q-TOF/MS) method was developed for analysing the chemical constituents in rat plasma and urine after the oral administration of
Zuoliang Zheng, Shengqing Li, Yuping Zhong, Ruoting Zhan, Yan Yan, Huafeng Pan, Ping Yan   +6 more
doaj   +1 more source

Identification of Dyes in Coptic Textiles from the Museum of Faculty of Archaeology, Cairo University

Heritage, 2021
High Performance Liquid Chromatography coupled to a Diode-Array-Detector (HPLC-DAD) is used to investigate samples which were extracted from ancient Egyptian textiles (4th–5th c. AD) of the Museum of Faculty of Archaeology, Cairo University.
Ioannis Karapanagiotis, Omar Abdel-Kareem, Paraskevi Kamaterou, Dimitrios Mantzouris   +3 more
doaj   +1 more source

Application of liquid-liquid microextraction based on deep eutectic solvent for preconcentration and spectrophotometric determination of purpurin [PDF]

شیمی کاربردی روز
This research used a simple and efficient liquid-phase microextraction method based on deep eutectic solvents for preconcentration and spectrophotometric determination of purpurin (1, 2, and 4-trihydroxyanthraquinone) dye.
Mojtaba Fathi, Hamid Reza Rajabi, Habibollah Khajehsharifi, Ali Gorjizadeh Kohvadeh   +3 more
doaj   +1 more source

Antibacterial Activity of Synthesized Derivatives of Purpurin Containing Cyсlopropane and Cyclobutane Fragment

Eurasian Chemico-Technological Journal, 2020
The present study is a continuation of the scientific research works for the synthesis of anthraquinonе-containing derivatives with cyclic ring systems by the interaction of 1,2,4-trihydroxyanthraquinone (purpurin) with cyclopropanecarboxylic acid ...
Т. V. Kharlamova, A. V. Gabdrakipov, P. B. Seidakhmetova, K. D. Praliyev   +3 more
doaj   +1 more source

Ueber Munjistin, ϵ‐Purpurin und Purpuroxanthincarbonsäure [PDF]

Berichte der deutschen chemischen Gesellschaft, 1877
n ...
Schunck, E., Römer, H.
openaire   +1 more source

Self‐Photosensitizing Cobalt Complexes for Photocatalytic CO2 Reduction Coupled with CH3OH Oxidation

Angewandte Chemie, Volume 137, Issue 26, June 24, 2025.
Self‐photosensitizing non‐noble metal complexes achieve CO2 photoreduction coupled with CH3OH photooxidation, simultaneously synthesizing formic acid in the absence of any additional photosensitizers and electron sacrificial reductants. Abstract The use of metal complexes as homogeneous molecular catalysts has attracted considerable attention regarding
Ji‐Hong Zhang, Zhao‐Ming Ge, Di‐Chang Zhong, Jing‐Lin Zuo, Marc Robert, Tong‐Bu Lu   +5 more
wiley   +2 more sources

Synthesis and crystal structures of two purpurin derivatives: 1,4-dihydroxy-2-propoxyanthraquinone and 2-butoxy-1,4-dihydroxyanthraquinone

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title compounds were obtained by deprotonation of 1,2,4-trihydroxyanthraquinone (purpurin) using sodium hydride followed by reaction with either 1-bromopropane or 1-bromobutane.
Eric Bosch, Emily N. McClain
doaj   +1 more source

Advancing Single‐Walled Carbon Nanotubes toward Next‐Generation Electronic Materials: The Critical Roles of Purity and Processability

Small Methods, Volume 10, Issue 4, 23 February 2026.
Single‐walled carbon nanotubes (SWNTs) are promising for a wide range of applications. In particular, their exceptional electrical conductivity positions them as potential alternatives to traditional metal conductors. This review identifies the key mechanisms governing their conductivity within composites and proposes practical pathways for translating
Xiao Yu, Alex Adronov
wiley   +1 more source