Zobrazeno 1 - 8
of 8
pro vyhledávání: '"N. A. El Ragehy"'
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 28:1041-1053
Four stability-indicating procedures have been suggested for determination of the non sedating antihistaminic agent loratadine. Loratadine being an ester undergoes alkaline hydrolysis and the corresponding acid derivative is produced as a degradation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29898590ce997bfb056e7c91e7e72446
https://doi.org/10.1016/s0731-7085(01)00664-1
https://doi.org/10.1016/s0731-7085(01)00664-1
Publikováno v:
Analytical Letters. 30:2045-2058
Two simple and sensitive spectrophotometric procedures are suggested for analysis of triamterene. The first procedure is based on the reaction of triamterene with p-chloranilic acid (p-CA) in methylene chloride to form a highly stable coloured produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f06ce55a9c71e982d7f57ce4685d7bad
https://doi.org/10.1080/00032719708001720
https://doi.org/10.1080/00032719708001720
Publikováno v:
Analytical Letters. 28:2363-2378
A simple, sensitive and accurate spectrophotometric procedure has been described for determination of three antihistaminic drugs, loratadine (I), dimethindene maleate (II), and clemastine hydrogen fumarate (III). The procedure is based on the interac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68de3ab7b003459d1e74174c5c17957c
https://doi.org/10.1080/00032719508000378
https://doi.org/10.1080/00032719508000378
Publikováno v:
Analytical Letters. 28:1799-1809
Two acid dye reagents have been utilized for spectrophotometric determination of triamterene in pure form and in pharmaceutical preparations. The dyes used are bromophenol blue (B. P. B), and bromothymol blue (B. T. S. They form a chloroform-soluble,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7e0159b6e3fcb261b545031f962b43c
https://doi.org/10.1080/00032719508000358
https://doi.org/10.1080/00032719508000358
Publikováno v:
Analytical Letters. 27:2127-2139
A rapid, sensitive and specific procedure for determination of ibuprofen has been developed. The drug solution in chloroform is treated with Cu(II) solution at pH 5.5, forming a blue compound which is extractable in the organic phase. This complex is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58c776fc2e25939dcd6e8a161b0047bc
https://doi.org/10.1080/00032719408007240
https://doi.org/10.1080/00032719408007240
Publikováno v:
Spectroscopy Letters. 24:81-97
In this work the reaction between oxamniquine as n donor and iodine as sigma acceptor was studied,. Different parameters involved in the reaction were investigated such as choice of solvent, iodine concentration, time, light and temperature. Also the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d78b1f2d5fd4a6f85dafcb09d417416e
https://doi.org/10.1080/00387019108018126
https://doi.org/10.1080/00387019108018126
Publikováno v:
Spectroscopy Letters. 23:505-514
A simple, accurate and specific proton magnetic resonance (PMR) procedure is developed for the assay of praziquantel and its tablets. The method involves comparing the integral of the multiplet of praziquantel (positioned at δ 7.3 ppm) to that of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7bc76a7ad696bf7bf8ed800104975d8
https://doi.org/10.1080/00387019008054432
https://doi.org/10.1080/00387019008054432
Autor:
N A, El-Ragehy, Y S, El-Saharty
Publikováno v:
Journal of AOAC International. 84(2)
Ketoconazole, as a ligand, reacts quantitatively with copper(II) and cobalt(II) to form blue-colored, stable complexes in dichloromethane. These complexes can be spectrophotometrically measured at 720 and 612.5 nm in the case of Cu(II) or Co(II), res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3e0575c39c57a4ac8c6f0537930493a7
https://pubmed.ncbi.nlm.nih.gov/11324626
https://pubmed.ncbi.nlm.nih.gov/11324626