H
Harriet Totoe Boakye
Researcher at University of Massachusetts Amherst
Publications - 5
Citations - 340
Harriet Totoe Boakye is an academic researcher from University of Massachusetts Amherst. The author has contributed to research in topics: Selenium & Selenium Compound. The author has an hindex of 5, co-authored 5 publications receiving 330 citations.
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Journal ArticleDOI
Chromatographic speciation of anionic and neutral selenium compounds in Se-accumulating Brassica juncea (Indian mustard) and in selenized yeast.
TL;DR: In this article, the complementary role of selenium and sulfur specific chromatographic detection by HPLC with interfaced inductively coupled plasma mass spectrometry (ICP-MS) detection and by derivatization GC with interfacing atomic spectral emission was investigated.
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Selective detection and identification of Se containing compounds--review and recent developments.
TL;DR: Gas chromatography with atomic emission detection of ethylated species and fluoroacid ion pair HPLC applied to the analysis of currently produced or archived selenized yeast and Brassica juncea have revealed the presence of a previously unrecognised Se-S amino acid, S-(methylseleno)cysteine.
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Element selective characterization of stability and reactivity of selenium species in selenized yeast
Peter C. Uden,Harriet Totoe Boakye,Chethaka Kahakachchi,Rameh Hafezi,Paula B Nolibos,Eric Block,Sherida Johnson,Julian F. Tyson +7 more
TL;DR: The concerted application of element specific atomic spectral detection for chromatographic eluent monitoring allows previously unexploited qualitative and quantitative analytical concepts to be developed for the determination of selenium species as discussed by the authors.
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Identification and synthesis of a novel selenium-sulfur amino acid found in selenized yeast: rapid indirect detection NMR methods for characterizing low-level organoselenium compounds in complex matrices
Eric Block,Richard S. Glass,Neil E. Jacobsen,Sherida Johnson,Chethaka Kahakachchi,Rafal Kaminski,Rafal Kaminski,Alexandra Skowrońska,Harriet Totoe Boakye,Julian F. Tyson,Peter C. Uden +10 more
TL;DR: Selenium-specific NMR spectroscopic methods were developed to directly analyze the aqueous extracts of the hydrolyzed selenized yeast without derivatization or separation, and Selenomethionine and S-(methylseleno)cysteine were identified by 77Se-1H HMQC-TOCSY experiments.
Journal ArticleDOI
Insights into the Chemical Biology of Selenium
Richard S. Glass,Marla J. Berry,Eric Block,Harriet Totoe Boakye,Bradley A. Carlson,Jürgen Gailer,Graham N. George,Vadim N. Gladyshev,Dolph L. Hatfield,Neil E. Jacobsen,Sherida Johnson,Chethaka Kahakachchi,Rafał Kamiński,Shawn A. Manley,Heiko Mix,Ingrid J. Pickering,Elmar J. Prenner,Kazima Saira,Aleksandra Skowrońska,Julian F. Tyson,Peter C. Uden,Qiao Wu,Xue-Ming Xu,Raghav Yamdagni,Yan Zhang +24 more
TL;DR: The long-sought pathway by which selenocysteyl-tRNA[Ser]Sec is synthesized in eukaryotes has been revealed and its formation under biological conditions has been demonstrated.