Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Alan L, Scher"'
This chapter reviews regulatory policies on the use of colouring agents in cosmetic products and also both the rationale and the specific methods for analyzing such agents. Regulations of various countries are presented, with an emphasis on the requi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fa771152312015d71bf2963c8e887fc
https://doi.org/10.1016/b978-0-444-63508-2.00007-2
https://doi.org/10.1016/b978-0-444-63508-2.00007-2
Autor:
Gerardo Alvarez-Rivera, Carlos Bendicho, Juan L. Benedé, Diana M. Bowman, Miguel A. Bratos, Noelia Cabaleiro, Alberto Chisvert, Octavio Díez-Sales, Stefano Dorato, José M. Eiros, María Fernández-Amado, Carmen Garcia–Jares, Maria C. Garcia-Loygorri, Dimosthenis Giokas, Eliseo F. González Abellán, Nancy M. Hepp, Kurunthachalam Kannan, Rajendiran Karthikraj, Isela Lavilla, Maria Llompart, Purificación López-Mahía, Marina López-Nogueroles, Marta Lores, Gabriel A. March, Juan G. March, Desirée Martínez Pérez, Nathaniel D. May, Andrew D. Maynard, Virginia Merino, Matilde Merino, Gerd Mildau, Stanley R. Milstein, Pablo Miralles, Soledad Muniategui-Lorenzo, Amparo Nácher, Raúl Ortiz de Lejarazu, Darío Prada-Rodríguez, M. Carmen Prieto-Blanco, Amparo Salvador, Alan L. Scher, Carla Villa, Adrian Weisz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6d4e783abc0f929bdc40c1ffc41e5cc
https://doi.org/10.1016/b978-0-444-63508-2.01002-x
https://doi.org/10.1016/b978-0-444-63508-2.01002-x
Autor:
Alan L. Scher, Bhakti R Petigara
Publikováno v:
Journal of AOAC INTERNATIONAL. 90:1373-1378
A reversed-phase liquid chromatographic method was developed to determine parts-per-million and higher levels of Sudan I, 1-(phenylazo)-2-naphthalenol, in the disulfo monoazo color additive FD&C Yellow No. 6 and in a related monosulfo monoazo color a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bca5bec6a11e6a0755f1f952fa0488ec
https://doi.org/10.1093/jaoac/90.5.1373
https://doi.org/10.1093/jaoac/90.5.1373
Publikováno v:
Journal of the American Chemical Society. 116:704-708
A novel countercurrent chromatographic technique is described for the preparative separation-with excellent resolution-of up to multigram quantities of organic acids. This separation is accomplished by addition of a simple acid (e.g., trifluoroacetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd476d873664a19a447174f6ddfdb65
https://doi.org/10.1021/ja00081a035
https://doi.org/10.1021/ja00081a035
Autor:
Nicholas C Adamo, Alan L. Scher
Publikováno v:
Journal of AOAC INTERNATIONAL. 76:287-291
A method is described for the determination of the intermediates and a related impurity in D&C Red No. 36 by reversed-phase liquid chromatography. This method may be used to ensure that limits set forth in the Code of Federal Regulations on the amoun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b99c269dd93c6df226ba92e94d3accc8
https://doi.org/10.1093/jaoac/76.2.287
https://doi.org/10.1093/jaoac/76.2.287
Publikováno v:
Journal of Chromatography A. 607:47-53
A synthetically prepared mixture of brominated 4,5,6,7-tetrachlorofloresceins was separated by a combination of preparative reversed-phase high-performance liquid chromatography and high-speed counter-current chromatography. Two new lower-brominated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a946b0611295507ace78fbe4e61f401e
https://doi.org/10.1016/0021-9673(92)87053-b
https://doi.org/10.1016/0021-9673(92)87053-b
Autor:
Bhakti Petigara, Harp, Alan L, Scher, Huei-Hsuan W, Yang, Darlene L, Brodie, Michael P, Sullivan, Julie N, Barrows
Publikováno v:
Journal of AOAC International. 92(3)
A reversed-phase liquid chromatographic (LC) method was developed to determine 4 impurities in the monosulfo monoazo color additives DC Red No. 6, DC Red No. 7, and their lakes. Manufacturing intermediates determined are 2-amino-5-methylbenzenesulfon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4f858b8f81256e2ab15286724d11a743
https://pubmed.ncbi.nlm.nih.gov/19610382
https://pubmed.ncbi.nlm.nih.gov/19610382
Autor:
Bhakti R, Petigara, Alan L, Scher
Publikováno v:
Journal of AOAC International. 90(5)
A reversed-phase liquid chromatographic method was developed to determine parts-per-million and higher levels of Sudan 1, 1-(phenylazo)-2-naphthalenol, in the disulfo monoazo color additive FDC Yellow No. 6 and in a related monosulfo monoazo color ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::980efc15fbb49fce049f619352cb6f14
https://pubmed.ncbi.nlm.nih.gov/17955981
https://pubmed.ncbi.nlm.nih.gov/17955981
Publikováno v:
Journal of chromatography. A. 732(2)
A synthetic mixture containing mainly 4'-bromo-4,5,6,7-tetrachlorofluorescein (4'BrTCF, ca. 25% by high-performance liquid chromatography) was prepared by direct bromination of tetrachlorofluorescein in ethanol. The 4'BrTCF was isolated and purified
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3dc1d90791801e7010da33f8159207f
https://pubmed.ncbi.nlm.nih.gov/8653202
https://pubmed.ncbi.nlm.nih.gov/8653202
Autor:
Alan L. Scher, Yoichiro Ito
Publikováno v:
ACS Symposium Series ISBN: 9780841231672
Modern Countercurrent Chromatography
Modern Countercurrent Chromatography
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01708f65d7aed234de7b0472d15d106c
https://doi.org/10.1021/bk-1995-0593.ch015
https://doi.org/10.1021/bk-1995-0593.ch015