Results 261 to 270 of about 67,204 (291)

Assay of CCNU in Tumor by RP-HPLC

Artificial Cells, Blood Substitutes, and Biotechnology, 2005
This paper reports a RP-HPLC method for the determination of Lomustine (CCNU) in mouse tumor tissue. CCNU was separated and determined on a reverse-phase C18 5 microm column with a mobile phase of H2O-acetonitrile (54:46), detected at 254 nm and no internal standard. The calibration curve was linear (r = 0.9999) within the range of 0.98-15.68 microg/ml
Zhao, Z. Q., Sun, Y., Zhang, Q. Q., Jiang, J.   +3 more
openaire   +3 more sources

Estimation of Lopinavir by RP-HPLC

Research Journal of Pharmacy and Technology, 2019
Simple, sensitive and accurate HPLC method has been developed for the estimation of Lopinavir in pharmaceutical dosage forms. Lopinavir is an antiretroviral drug. Chromatographic separation was conducted on phenomenex lunar (250x4.6mm, 5µ) column at temperature 35°C, using a mobile phase composition of Acetonitrile: Water (70:30). The flow rate was 1ml/
Hemanth Kumar, Deepthi D K, Jane M, Deepthi K   +3 more
openaire   +2 more sources

The RP-HPLC analysis of anthocyanins

Chromatographia, 1998
Conditions were determined for the separation of a complex set of anthocyanins (free aglycones, mono- and multiglycosides and esterified forms) by HPLC. The optimised gradient elution method was then used to carry out qualitative and quantitative analysis of anthocyanin compounds present in the callus tissue ofRudbeckia hirta L. and the tubular flowers
Wojciech Cisowski, Maria Łuczkiewicz
openaire   +2 more sources

RP-HPLC of some metal phthalocyanines [PDF]

Mikrochimica Acta, 1998
The retention parameters of phthalocyanine, tetra-4-t-butylphthalocyanine and the latter's complexes with zinc, copper, rhodium and lutetium, as well as the copper complex of tetra-4-t-butyltetrabenzotriazaporphyrin were determined with μBondapak C18 sorbent.
Oleg A. Shpigun, Mariya I. Uvarova, G. D. Brykina   +2 more
openaire   +1 more source

A RP-HPLC method for the determination of tea catechins

Cancer Letters, 1997
An HPLC method with gradient elution for the quantification of catechins ((-)-epigallocatechin (EGC), (+)-catechin (C), (-)-epicatechin (EC), (-)-epigallocatechingallate (EGCg) and (-)-epicatechingallate (ECg)) in tea was developed. The method was used to determine catechins in black tea, green tea and oolong tea.
Khokhar, S., Venema, D., Hollman, P.C.H., Dekker, M., Jongen, W.M.F.   +4 more
openaire   +4 more sources

Determination of tomatine in Solanum cathayanum by RP-HPLC

China Journal of Chinese Matera Medica, 2010
To develop an HPLC method for determination of tomatine in the dried Solanum cathayanum of China Hubei Enshi.The analysis was performed on a YMC-Pack ODS-AA column (4. 6 mm x 150 mm, 5 microm) eluted with acetonitrile and water in gradient mode. The concentration of acetonitrile in the mobile phase changes from 20% to 100% within 60 minutes.
Mingxia Xie, Kun Zou, Yuan Zhou, Jianghong Guo, Rong Liu   +4 more
openaire   +2 more sources

Determination of flavonoids in Semen Cuscutae by RP-HPLC

Journal of Pharmaceutical and Biomedical Analysis, 2002
Flavonoids contents in 40 samples of Semen Cuscutae collected from areas all around China were investigated. Five principal flavonoids, quercetin 3-O-beta-D-galactoside-7-O-beta-D-glucoside, quercetin 3-O-beta-D-apiofuranosyl-(1-->2)-beta-D-galactoside, hyperoside, quercetin and kaempferol were analyzed simultaneously by using a reversed phase liquid ...
Huwei Liu, Xiuhong Ji, Yan Li, Yuning Yan, Min Ye   +4 more
openaire   +3 more sources

A NOVEL PACKING MATERIAL FOR RP-HPLC

Journal of Liquid Chromatography & Related Technologies, 2000
A simple, practical, and economical procedure had been developed to prepare novel C18 ether-bond reversed phase packing. A soft and long C18 alkyl chain was coupled onto silica (Sinopak-S, particle size d = 5μm, pore diameter Dp=11nm, and surface area s=170m2/g) with γ-glycidoxypropyltrimethoxysilane as a coupling agent.
Zhao Rui, Yu Xin, Liu Guo-quan
openaire   +2 more sources

Bioanalytical RP‐HPLC method for the determination of ponazuril in plasma

Biomedical Chromatography, 2021
AbstractThe goal of this investigation was to establish a reliable technique for the quantitation of ponazuril in limited sample volumes. Samples were extracted with chloroform and separation was achieved with a Symmetry RP18 column. Ultraviolet absorption was measured at 254 nm.
Sherry Cox, Lainey Harvill, Sarah Singleton, Joan Bergman, Becky DeBolt   +4 more
openaire   +3 more sources

Analysis of Invertebrate Neuropeptides by RP-HPLC

Journal of Liquid Chromatography, 1983
Abstract The application of reverse phase-high performance liquid chromatography to the analysis of four synthetic invertebrate neuropeptides is described. Proctolin (Arg-Try-Leu-Pro-Thr), locust adipokinetic hormone (p-Glu-Leu-Asn-Phe-Thr-Pro-Asn-Trp-Gly-Thr-NH2), crustacean erythrophore concentrating hormone (p-Glu-Leu-Asn-Phe-Ser-Pro-Gly-Trp-NH2 ...
Howard Jaffe, Dora K. Hayes
openaire   +2 more sources