Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Arne Torstensson"'
Publikováno v:
Analytical Chemistry. 76:4875-4880
The typical measure of the stability of analytical HPLC methods in the pharmaceutical laboratory is standards injected repeatedly throughout the sample sequence. To obtain improved control of the analysis and reduction of the number of standards and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8c66d70bea5a5c06efe0fde2fae7042
https://doi.org/10.1021/ac0497050
https://doi.org/10.1021/ac0497050
Autor:
Arne Torstensson, Lars Karlsson, Lennart Mathiasson, Cecilia Sparr Eskilsson, Erland Björklund
Publikováno v:
Journal of Chromatography A. 840:59-70
A microwave-assisted extraction (MAE) method was developed to determine felodipine and its degradation product H152/37 in tablets. These substances were present at different concentration levels, differing with a factor of ca 600. The choice of extra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::370380d4dedeb64ca8f9396aa0dfbd5f
https://doi.org/10.1016/s0021-9673(99)00194-6
https://doi.org/10.1016/s0021-9673(99)00194-6
Publikováno v:
Journal of Chromatographic Science. 36:257-262
Peak compression phenomena are studied and applied to the analysis of lipid emulsion samples of clevidipine. Alcohols and water are found to generate system peaks on a silica column with 2-propanol-modified carbon dioxide. The retention times of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e87b2bfb7ff25a05e628e6908345d3e
https://doi.org/10.1093/chromsci/36.5.257
https://doi.org/10.1093/chromsci/36.5.257
Autor:
Lars Karlsson, Arne Torstensson, Mattias Järemo, Lennart Mathiasson, P. Torkelsson, Erland Björklund
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 21:391-406
A method was developed for the determination of clevidipine and some of its degradation products from a water based soya bean oil emulsion using supercritical fluid extraction (SFE). A trap packed with octadecyl silica (ODS) and stainless steel beads
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f784391b46cd812215c3bc29a63fa9b
https://doi.org/10.1080/10826079808000498
https://doi.org/10.1080/10826079808000498
Autor:
Lennart Mathiasson, Erland Björklund, Arne Torstensson, J. Eriksson, Lars Karlsson, J. T. Strode, Mattias Järemo
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 21:535-549
A method for the content determination of felodipine from tablets using accelerated solvent extraction (ASE) was developed. Acetonitrile, methanol and a mixture of the two (2:1, v/v) were evaluated as the extraction solvents, at two different tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2e894291b804fc3dde4dcfd415d9772
https://doi.org/10.1080/10826079808001238
https://doi.org/10.1080/10826079808001238
Publikováno v:
Pharmaceutical Research. 11:1093-1097
The drug release of felodipine, a water-insoluble drug, was tested by using sodium lauryl sulphate (SLS), polyoxyethylene 20 sorbitan monooleate (Tween) or cetyltrimethylammonium bromide (CTAB) in the test medium as solubilizers. Three slightly diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9e3e0469e2dba5d138743d50c476bd9
https://doi.org/10.1023/a:1018920412020
https://doi.org/10.1023/a:1018920412020
Autor:
Per-Ola Fuxin, Dan Gerhardsson, Sverker Hård, Johan Sjöstrand, Tomas Nilsson, Per-Arne Torstensson
Publikováno v:
SPIE Proceedings.
A fast and accurate fiberoptic-based interferometer for non-contact measurements of theaxial length of the eye was constructed and tested. A novelty of the interferometerdesign is the use of a diffractive, bifocal lens, which simultaneously focuses o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f698285459837ccf854cae36943f54f
https://doi.org/10.1117/12.339166
https://doi.org/10.1117/12.339166
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 15(5)
This paper reviews the use of supercritical fluid extraction (SFE) as a sample work-up step in the analysis of drugs in various pharmaceutical formulations. Matrices studies include tablets, animal feed, creams, ointments and infusions. As in other f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be3ecf0ec07753c2cf90ceb13a183c06
https://pubmed.ncbi.nlm.nih.gov/9127272
https://pubmed.ncbi.nlm.nih.gov/9127272
Autor:
Jianming Ren, Per-Arne Torstensson, Claes Beckman, Peep Algvere, Per G. Soederberg, Bjorn M. Tengroth
Publikováno v:
SPIE Proceedings.
A fiber optic point-source was designed for in vivo measurement of light transmission and scattering. The point-source consists of an optical fiber, with a core diameter of about 8 um, mounted in a ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07ec5de2a536f76afa3ed38c9a4eb764
https://doi.org/10.1117/12.178568
https://doi.org/10.1117/12.178568
Publikováno v:
Analytica Chimica Acta. 97:221-228
Reduced nicotinamide adenine dinucleotide (NADH) was oxidized coulometrically at a rotating platinum gauze electrode at 0.7 V vs. SCE at pH 9. The NAD + formed was reduced enzymatically in a reactor containing immobilized alcohol dehydrogenase. Sever
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47ba65649753611779d4ccfd00040e24
https://doi.org/10.1016/s0003-2670(01)93426-9
https://doi.org/10.1016/s0003-2670(01)93426-9