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Phytosterols from the stem bark of Combretumjragrans F. Hoffm

Maima, AO; Thoithi, GN; Ndwigah, SN; Kamau, FN; Kibwage, IO (2008)

Two sterols, b-sitosterol and stigmasterol, were isolated from the stem bark of combetrum fragrans~ The, identity.of'.these.compounds was established by spectral analysis.

Quality of some pharmacutical products manufactured in Kenya

Orwa, JA; Keter, LK; Ouko, SPA; Rukunga, GM; Kibwage, IO (2008)

Samples of pharmaceutical products were obtained from local industries and retail outlets and evaluated with respect to six quality-indicating parameters, namely content, uniformity of weight, uniformity of diameter, ...

Development and validation of a liquid chromatographic method for the simultaneous analysis of six protease inhibitors using a polymer column

Keter, L.K; Thoithi, G.N; Kibwage, IO (2008)

A liquid chromatographic method for the simultaneous determination of six human immunodeficiency virus (HIV) protease inhibitors, indinavir, saquinavir, ritonavir, amprenavir, nelfinavir and lopinavir, VI as developed and ...

Drug Quality Control in Kenya: Observation in the Drug Analysis and Research Unit During the Period 2001-2005

Thoithi, G.N.; Abuga, K.O.; Nguyo, J.M.; King'ondu, O.K.; Mukindia, G.G.; Mugo, H.N.; Ngugi, J.K.; Kibwage, IO (2008)

During the five-year period January 2001 to December 2005, the Drug Analysis and Research Unit received and analyzed 394 drug samples. Samples were received from regulatory authorities, local industry, non-governmental ...

Isolation of quecetrin from Clematis brachiata Thunberg

Okalebo, FA; Kibwage, IO; Maitai, CK; Thoithi, C; Guantai, AN (Department of Pharmaceutical Chemistry, University of Nairobi, 2008)

Quercetrin (3-0-heta-L-rhamnosyl 3',4',5,7 tetrahydroxy flavone) was isolated from the stem of Clematis brachiata Thunberg. The yield was 0.029 % w/w of dried stern powder.