Search Results - "Riegel, Susanne D."
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Benchtop nuclear magnetic resonance performance evaluation according to ASTM E691–22 on a population of instruments: Molar substitution determination in hydroxypropyl betadex as a case study for use in quality control environments
Published in Magnetic resonance in chemistry (01-04-2024)“…The inclusion of quantitative nuclear magnetic resonance (qNMR) spectroscopy in industry has historically been stifled by a lack of accessibility, caused…”
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2
Cyclotetraphosphinophosphonium Ions: Synthesis, Structures, and Pseudorotation
Published in Journal of the American Chemical Society (13-06-2007)“…The first derivatives of catenated cyclotetraphosphinophosphonium cations, [(PhP)4PPhMe]+ (8a), [(MeP)4PMe2]+ (8b), [(CyP)4PPh2]+ (8d), [(CyP)4PMe2]+ (8e),…”
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3
Identification of seven psychedelic 2,5‐dimethoxy‐phenylethyl‐amine‐based designer drugs via benchtop 1H nuclear magnetic resonance spectroscopy
Published in Magnetic resonance in chemistry (01-02-2023)“…The dissemination of spectral information of new psychoactive substances (NPS) acquired on benchtop nuclear magnetic resonance (NMR) spectrometers is of high…”
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4
Identification of seven psychedelic 2,5-dimethoxy-phenylethyl-amine-based designer drugs via benchtop 1 H nuclear magnetic resonance spectroscopy
Published in Magnetic resonance in chemistry (01-02-2023)“…The dissemination of spectral information of new psychoactive substances (NPS) acquired on benchtop nuclear magnetic resonance (NMR) spectrometers is of high…”
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5
Analysis of lignins using [.sup.31]P benchtop NMR spectroscopy: quantitative assessment of substructures and comparison to high-field NMR
Published in Canadian journal of chemistry (01-11-2022)“…Lignin is quickly emerging as a biomass-derived source for the production of some crucial organic chemistry building blocks, typically obtained from…”
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6
3,4-Methylenedioxymethamphetamine quantification via benchtop 1H qNMR spectroscopy: Method validation and its application to ecstasy tablets collected at music festivals
Published in Journal of pharmaceutical and biomedical analysis (30-05-2022)“…We describe a method validation for the quantification of 3,4-methylenedioxymethamphetamine (MDMA) in tablets based on the United Nations Office on Drugs and…”
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7
Quantitative analysis of cannabinoids using benchtop NMR instruments
Published in Analytical methods (22-10-2020)“…The quantification of cannabinoids is an essential part of cannabis profiling and testing, whether for medical or recreational use. As regulatory bodies…”
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Benchtop NMR spectrometers: Technology, applications, techniques and future perspectives
Published in Magnetic resonance in chemistry (01-12-2020)Get full text
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Incorporating Benchtop NMR Spectrometers in the Undergraduate Lab: Understanding Resolution and Circumventing Second-Order Effects
Published in Journal of chemical education (13-04-2021)“…Nuclear magnetic resonance (NMR) spectroscopy is commonly introduced to students in the classroom, but its hands-on use in undergraduate laboratories is far…”
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10
Prototypical Phosphorus Analogues of Ethane: General and Versatile Synthetic Approaches to Hexaalkylated P−P Diphosphonium Cations
Published in Journal of the American Chemical Society (27-06-2007)“…Versatile alkylation reactions give access to symmetric, homoleptic nonsymmetric, and heteroleptic symmetric hexaalkylated 1,2-diphosphonium derivatives as…”
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Benchtop NMR Spectroscopy of Prebiotically-Relevant Peptide Reactions Enabled by Salt-Induced Chemical Shift Dispersion
Published in ACS earth and space chemistry (16-04-2020)“…This Article describes a method that increases the chemical shift dispersion of signals in proton nuclear magnetic resonance (1H NMR) spectra of peptides by…”
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Benchtop NMR spectrometers in academic teaching
Published in TrAC, Trends in analytical chemistry (Regular ed.) (01-10-2016)“…•There is a mismatch between the frequency in which NMR Spectroscopy is incorporated into chemical research relative to academic teaching.•The development of…”
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13
Analysis of lignins using 31P benchtop NMR spectroscopy: quantitative assessment of substructures and comparison to high-field NMR
Published in Canadian journal of chemistry (01-11-2022)“…Lignin is quickly emerging as a biomass-derived source for the production of some crucial organic chemistry building blocks, typically obtained from…”
Get full text
Journal Article -
14
Analysis of lignins using 31 P benchtop NMR spectroscopy: quantitative assessment of substructures and comparison to high-field NMR
Published in Canadian journal of chemistry (01-11-2022)“…Lignin is quickly emerging as a biomass-derived source for the production of some crucial organic chemistry building blocks, typically obtained from…”
Get full text
Journal Article -
15
3,4-Methylenedioxymethamphetamine quantification via benchtop 1 H qNMR spectroscopy: Method validation and its application to ecstasy tablets collected at music festivals
Published in Journal of pharmaceutical and biomedical analysis (30-05-2022)“…We describe a method validation for the quantification of 3,4-methylenedioxymethamphetamine (MDMA) in tablets based on the United Nations Office on Drugs and…”
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Journal Article -
16
catena-Phosphinophosphonium and phosphinodiphosphonium cations
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Dissertation