Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Octave J Francis"'
Autor:
Glenn A. Bennett, Allen S Carman, George M Ware, Octave J Francis, Shia S. Kuan Pesi Umrigar, Lawrence Carter
Publikováno v:
Analytical Letters. 26:1751-1770
A method is described for the determination of fumonisin B1 in corn. The method involves sample extraction with methanol:water (75:25) and partial purification using a solid phase extraction. Fumonisin B1 is reacted with naphthalene-2,3-dicarboxaldeh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef0f94a4994f806d0cb79bec1ab1c032
https://doi.org/10.1080/00032719308021494
https://doi.org/10.1080/00032719308021494
Publikováno v:
Journal of Agricultural and Food Chemistry. 38:185-190
La methode permet un dosage des phytoestrogenes par chromatographie HPLC dans le soja et produits derives, sans delipidation selon le type de detection, UV ou fluorescence, la limite de detection est de 0.5 a 2 p.p.m.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae8758609d0b650f4e6c5485d5656b0a
https://doi.org/10.1021/jf00091a041
https://doi.org/10.1021/jf00091a041
Publikováno v:
Journal of Agricultural and Food Chemistry. 34:279-282
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1fe630a98d763638919ebf9d7f9b3d0
https://doi.org/10.1021/jf00068a033
https://doi.org/10.1021/jf00068a033
Publikováno v:
Journal of AOAC INTERNATIONAL. 67:1095-1098
A sensitive, highly selective liquid chromatographic (LC) method is described which uses electrochemical (EC) reduction of the analyte in the determinative step. The method is capable of determining xanthomegnin in mixed animal feeds and grains at le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f868dc9744a6e6dae10fce0a499d640f
https://doi.org/10.1093/jaoac/67.6.1095
https://doi.org/10.1093/jaoac/67.6.1095
Publikováno v:
Analytical Letters. 22:2335-2352
A method is described for the determination of zearalenol and zearalenone in corn using electrochemical detection. the sample is extracted with chloroform, and the extract is cleaned up by liquid-liquid partition. Zearalenol and zearalenone are resol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5745b83d714e13eb9629c722d4854c2
https://doi.org/10.1080/00032718908051259
https://doi.org/10.1080/00032718908051259
Autor:
Octave J Francis
Publikováno v:
Journal of AOAC INTERNATIONAL. 62:1182-1185
A procedure has been devised for more rapid preparation of large samples of nutmeats (10-80 lb) for mycotoxin analysis without the use of grinding aids, by combining the grinding and mixing steps into one operation. Ease of cleaning equipment facilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8c2fea20e884d54006ff05375e14373
https://doi.org/10.1093/jaoac/62.5.1182
https://doi.org/10.1093/jaoac/62.5.1182
Publikováno v:
Journal of AOAC INTERNATIONAL. 67:731-734
A method is described for the determination of deoxynivalenol (DON) in wheat. The method involves sample extraction with chloroformethanol (8 + 2), column chromatographic cleanup on silica gel of small particle size, and derivatization with heptafluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::510aa2a97f3bd0a5e4d52dfd534b3ab8
https://doi.org/10.1093/jaoac/67.4.731
https://doi.org/10.1093/jaoac/67.4.731
Publikováno v:
Journal of AOAC INTERNATIONAL. 59:118-121
A total of 315 marketable and 57 obviously damaged corn samples were collected at 116 different farms and country elevators located in the United States in counties selected from among those producing more than 1 million bushels of corn in 1972. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94be601db651f2db1d7923dc9f03a993
https://doi.org/10.1093/jaoac/59.1.118
https://doi.org/10.1093/jaoac/59.1.118
Publikováno v:
Analytical Letters. 18:837-846
A derivatization procedure was developed for the fluorometric determination of purified xanthomegnin. A highly fluorescent product is formed by reaction of xanthomegnin with ammonia and hydrogen peroxide under defined conditions. The derivative is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d237118cd772d0ecae9bbd65d315575
https://doi.org/10.1080/00032718508066181
https://doi.org/10.1080/00032718508066181
Publikováno v:
Journal of AOAC INTERNATIONAL. 66:587-591
A high pressure liquid chromatographic (HPLC) method is described for the determination of xanthomegnin in grains and mixed animal feeds at levels ranging from 150 to 1200 ng/g. This is equivalent to actual amounts of xanthomegnin injected on the HPL
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e12b34709bf941a0f50451056c5e40a
https://doi.org/10.1093/jaoac/66.3.587
https://doi.org/10.1093/jaoac/66.3.587