Weisz A - Search Results

1

Structural determination of four manufacturing impurities of D&C Red No. 33.

Mazzola EP, Weisz A, Ridge DP, Donnelly SE, Zhang H, Gonzalez RM, Ackerman LK, Reese KL, Ridge CD. Mazzola EP, et al. Among authors: weisz a. Magn Reson Chem. 2021 Nov;59(11):1107-1115. doi: 10.1002/mrc.5160. Epub 2021 Apr 27. Magn Reson Chem. 2021. PMID: 33818821

2

Preparative separation of di- and trisulfonated components of Quinoline Yellow using affinity-ligand pH-zone-refining counter-current chromatography.

Weisz A, Mazzola EP, Ito Y. Weisz A, et al. J Chromatogr A. 2009 May 8;1216(19):4161-8. doi: 10.1016/j.chroma.2009.02.064. Epub 2009 Feb 26. J Chromatogr A. 2009. PMID: 19281993 Free PMC article.

3

Preparative separation of two subsidiary colors of FD&C Yellow No. 5 (Tartrazine) using spiral high-speed counter-current chromatography.

Weisz A, Ridge CD, Roque JA, Mazzola EP, Ito Y. Weisz A, et al. J Chromatogr A. 2014 May 23;1343:91-100. doi: 10.1016/j.chroma.2014.03.059. Epub 2014 Mar 29. J Chromatogr A. 2014. PMID: 24755184 Free PMC article.

4

Preparative separation and identification of novel subsidiary colors of the color additive D&C Red No. 33 (Acid Red 33) using spiral high-speed counter-current chromatography.

Weisz A, Ridge CD, Mazzola EP, Ito Y. Weisz A, et al. J Chromatogr A. 2015 Feb 6;1380:120-9. doi: 10.1016/j.chroma.2014.12.072. Epub 2015 Jan 3. J Chromatogr A. 2015. PMID: 25591404 Free PMC article.

5

Determination of Sudan I and a newly synthesized Sudan III positional isomer in the color additive D&C Red No. 17 using high-performance liquid chromatography.

Weisz A, James IC, Tae CJ, Ridge CD, Ito Y. Weisz A, et al. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2017 Nov;34(11):1831-1841. doi: 10.1080/19440049.2017.1347285. Epub 2017 Jul 12. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2017. PMID: 28665764

6

Identification of 1',5'-naphthyridinophthalone and its quantification in the color additive D&C Yellow No. 10 (Quinoline Yellow) using high-performance liquid chromatography.

Weisz A, James IC, Mazzola EP, Ridge CD, Ijames CF, Markey SP. Weisz A, et al. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2018 Mar;35(3):439-447. doi: 10.1080/19440049.2017.1416183. Epub 2018 Jan 15. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2018. PMID: 29279012

7

Identification and quantification of the decarboxylated analogue of Pigments Red 57 and 57:1 in the color additives D&C Red No. 6, D&C Red No. 7, and their lakes, using a chelating agent and UHPLC.

Perez-Gonzalez M, Ridge CD, Weisz A. Perez-Gonzalez M, et al. Among authors: weisz a. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2019 Feb;36(2):212-224. doi: 10.1080/19440049.2018.1556404. Epub 2019 Jan 29. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2019. PMID: 30696369

8

Separation using high-speed counter-current chromatography and identification of 1,3-bis(4-phenylazophenyl)triazene, an impurity in the color additive D&C Red No. 17 (Sudan III).

Weisz A, Ridge CD, Perez-Gonzalez M, Ito Y. Weisz A, et al. J Chromatogr A. 2019 Jun 7;1594:120-128. doi: 10.1016/j.chroma.2019.01.072. Epub 2019 Jan 28. J Chromatogr A. 2019. PMID: 30712821

9

Identification, separation by spiral high-speed counter-current chromatography, and quantification of 7-chloro-5-methyl-2H-1,4-benzothiazin-3(4H)-one, an impurity in the thioindigoid color additive D&C Red No. 30 and its lakes.

Weisz A, Perez-Gonzalez M, Wood JF, Ridge CD, Ito Y. Weisz A, et al. J Chromatogr A. 2021 Jan 25;1637:461863. doi: 10.1016/j.chroma.2020.461863. Epub 2020 Dec 29. J Chromatogr A. 2021. PMID: 33422799

10

Preparative separation of 1,3,6-pyrenetrisulfonic acid trisodium salt from the color additive D&C Green No. 8 (pyranine) by pH-zone-refining counter-current chromatography.

Weisz A, Mazzola EP, Ito Y. Weisz A, et al. J Chromatogr A. 2011 Nov 11;1218(45):8249-54. doi: 10.1016/j.chroma.2011.09.049. Epub 2011 Sep 22. J Chromatogr A. 2011. PMID: 21982993 Free PMC article.

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