Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Howard W. Ziegler"'
Publikováno v:
Analytical chemistry. 44(11)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::585518465774a97847ecfa69542a9b9b
https://pubmed.ncbi.nlm.nih.gov/22324599
https://pubmed.ncbi.nlm.nih.gov/22324599
Publikováno v:
Journal of AOAC INTERNATIONAL. 57:85-90
A high-pressure liquid chromatographic procedure has been developed for the separation of 6 major alkaloids in gum or powdered opium. The alkaloids are absorbed from an aqueous dimethylsulfoxide solution onto a strong cation exchange resin and eluted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ddfb9d75114443ab903a03de7431b3f
https://doi.org/10.1093/jaoac/57.1.85
https://doi.org/10.1093/jaoac/57.1.85
Publikováno v:
Journal of Chromatography A. 175:350-355
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::990643d71c62d94356434a897511ff74
https://doi.org/10.1016/s0021-9673(00)89445-5
https://doi.org/10.1016/s0021-9673(00)89445-5
Publikováno v:
Journal of AOAC INTERNATIONAL. 58:888-897
A method is described for the quantitative determination of morphine, codeine, cryptopine, thebaine, papaverine, and narcotine in opium by high-performance liquid chromatography. The alkaloids are isolated from a dilute acid extract by adsorption on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f14c54b06e6ba97c4232cfc43c519897
https://doi.org/10.1093/jaoac/58.5.888
https://doi.org/10.1093/jaoac/58.5.888
Publikováno v:
Analytical Chemistry. 49:238-243
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c08488eddfbdb70b201af0c6cc46e415
https://doi.org/10.1021/ac50010a016
https://doi.org/10.1021/ac50010a016
Publikováno v:
Journal of Pharmaceutical Sciences. 62:1691-1694
A method for the quantitative determination of thebaine in poppy plants using high speed liquid chromatography is described. A nonionic polymeric adsorbent resin column cleanup of the sample is used to eliminate interferences from nonalkaloidal plant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61b425cb7c72aff324f042859ac169a5
https://doi.org/10.1002/jps.2600621024
https://doi.org/10.1002/jps.2600621024
Autor:
Thomas H. Beasley, Howard W. Ziegler
Publikováno v:
Journal of Pharmaceutical Sciences. 66:1749-1751
A direct and rapid high-performance liquid chromatographic assay for methadone hydrochloride in a flavored oral solution dosage form is described. A syrup sample, one part diluted with three parts of water, is introduced onto a column packed with oct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d64ac3a5334a4bc53666899a27192789
https://doi.org/10.1002/jps.2600661224
https://doi.org/10.1002/jps.2600661224
Publikováno v:
Journal of AOAC INTERNATIONAL. 56:1362-1364
A method for the determination of traces of gallotannins in beer, in the presence of other natural tannins, has been developed. The procedure is based on the formation of a deep blue iron-tannin complex which is evaluated spectrophotometrically at 53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b95e7cba6f93be00b3c2cacebcd2c63
https://doi.org/10.1093/jaoac/56.6.1362
https://doi.org/10.1093/jaoac/56.6.1362
Publikováno v:
Journal of pharmaceutical sciences. 64(6)
An automated method, based on the chelating reaction of calcium disodium edetate with zirconium and the subsequent determination of excess zirconium reacted with xylenol orange, was developed. The procedure is applicable to parenterals consisting of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be08ee6595aeda471647cd5962e4bcde
https://pubmed.ncbi.nlm.nih.gov/805833
https://pubmed.ncbi.nlm.nih.gov/805833
Publikováno v:
Journal of pharmaceutical sciences. 57(7)
A method suitable for compendial assay of barium sulfate USP has been developed. Barium is separated as the carbonate and precipitated as the chromate. Calcium, strontium, and silica do not interfere. The calcium and strontium content may be determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3414a598a979c6712bee64579cb3f285
https://pubmed.ncbi.nlm.nih.gov/5662067
https://pubmed.ncbi.nlm.nih.gov/5662067