Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Fawzi A. El-Yazbi"'
Publikováno v:
Bulletin of Faculty of Pharmacy Cairo University, Vol 52, Iss 1, Pp 63-69 (2014)
Four rapid, reliable and economical spectrophotometric methods have been established for the quantitative determination of Oseltamivir phosphate (OST) without the interference of ascorbic acid (ASC) found in some of its counterfeit capsules. The firs
Externí odkaz:
https://doaj.org/article/0d293f1e292d4bfe996aa02ec5a4e835
Autor:
Essam F. Khamis, Fawzi A. El-Yazbi, Sameh E. Younis, Omayma A. Amin, Eman I. El-Kimary, Rania Bakry
Publikováno v:
Talanta. 194:542-547
A simple offline coupling voltammetry-MALDI/TOF MS procedure is presented for studying electrochemical reactions. It was utilized for the characterization of the electro-reduction products of febuxostat in methanolic acetate buffer (0.1 M, pH 5). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a600709c48312820c7e2a132ef2e035
https://doi.org/10.1016/j.talanta.2018.10.087
https://doi.org/10.1016/j.talanta.2018.10.087
Publikováno v:
Drug Development and Industrial Pharmacy. 45:265-272
Objective and Significance: Methocarbamol (MET) and aspirin (ASP) are widely used as a muscle relaxant combination. The USP reports guaifenesin (GUA) and salicylic acid (SAL) as related substances and hydrolytic products of MET and ASP, respectively.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c88829349df84c3742727d9ef63a3124
https://doi.org/10.1080/03639045.2018.1535603
https://doi.org/10.1080/03639045.2018.1535603
Publikováno v:
Journal of Chromatographic Science. 54:1146-1152
An accurate, precise, rapid, specific and economic high-performance thin-layer chromatographic (HPTLC) method has been developed for the simultaneous quantitative determination of febuxostat (FEB) and diclofenac potassium (DIC). The chromatographic s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbac496a689436bef3470c5193349a28
https://doi.org/10.1093/chromsci/bmw091
https://doi.org/10.1093/chromsci/bmw091
Publikováno v:
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences. 1086
Two simple, sensitive and specific high-performance thin-layer chromatographic (HPTLC) methods were developed for the determination of febuxostat (FEB) individually, and simultaneously with diclofenac (DIC) in human plasma. Method A presents the firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abd5d4ebc51ddc19e5529f883d577a26
https://pubmed.ncbi.nlm.nih.gov/29660667
https://pubmed.ncbi.nlm.nih.gov/29660667
Publikováno v:
Journal of Planar Chromatography – Modern TLC. 26:427-434
A selective high-performance thin-layer chromatographic (HPTLC) method has been established for the quantitative determination of oseltamivir phosphate (OST) without interference of ascorbic acid (ASC) added to some of its counterfeit pharmaceutical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89ad9f7c58dbc136cec0c97db7e83785
https://doi.org/10.1556/jpc.26.2013.5.7
https://doi.org/10.1556/jpc.26.2013.5.7
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 68(2)
A derivative spectrophotometric method was developed for the assay of a ternary mixture of aspirin (ASP), paracetamol (PAR) and salicylic acid (SAL). The method is based on the use of the first and second derivatives of the ratio spectra and measurem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b42ae15c4048fd1c520136e4e73641f0
https://pubmed.ncbi.nlm.nih.gov/17350884
https://pubmed.ncbi.nlm.nih.gov/17350884
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 31(4)
A derivative spectrophotometric method is developed for the assay of three binary mixtures of pseudoephedrine with fexofenadine (mix I), cetirizine (mix II) and loratadine (mix III). The method is based on the use of the first derivative of the ratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70de043583a788015ac1978619ffe730
https://pubmed.ncbi.nlm.nih.gov/12644207
https://pubmed.ncbi.nlm.nih.gov/12644207
Publikováno v:
Pharmaceutisch Weekblad Scientific Edition. 7:163-166
A simple and direct method for the determination of ethinyloestradiol as a minor component in the presence of norethisterone and in oral contraceptive tablets is presented. The method is based on measuring the signal intensity, d delta A/d lambda and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eab55c44e02a00793ab151f0ebcbc745
https://doi.org/10.1007/bf02097254
https://doi.org/10.1007/bf02097254
Publikováno v:
Journal of AOAC INTERNATIONAL. 62:67-70
Different methods for analyzing binary mixtures by using 2 wavelengths are reviewed. The absorbance ratio calculated at 2 wavelengths, not including the isoabsorptive point, was a quadratic function of relative concentration. The curve-fitting proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f686d5cdaf65d9d588c7d3da278f7e1
https://doi.org/10.1093/jaoac/62.1.67
https://doi.org/10.1093/jaoac/62.1.67