qNMR

NEW Software - qNMR module
A new automated, easy-to-use software module to allow you to create and edit method to automate routine qNMR assays and allow technicians to collect data effortlessly.

Blog

• Limits that Matter: How LoD and LoQ Shape Analytical Results

• NMR acquisition parameters and qNMR

• Beyond structural elucidation, introduction to qNMR – Part I

• Beyond Structure Elucidation - Introduction to qNMR Part II – Calibrants

• Beyond Structural Elucidation - Introduction to qNMR Part III - Relaxation Delays

• Cheat codes for 13C qNMR

• Quantifying Lithium Brines with Lithium-7 Benchtop NMR Spectroscopy
  

Peer-Reviewed Published Papers:

• Determination of copolymer compositions in polyhydroxyalkanoates using 1H benchtop nuclear magnetic resonance spectroscopy

• Lithium-7 qNMR as a method to quantify lithium content in brines using benchtop NMR

• 3,4-Methylenedioxymethamphetamine quantification via benchtop 1H qNMR spectroscopy: Method validation and its application to ecstasy tablets collected at music festivals

• Analysis of lignins using 31P benchtop NMR spectroscopy: quantitative assessment of substructures and comparison to high-field NMR

• 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

  Undergraduate Sample Experiments:

• Measuring alcohol content in commercial liquours via benchtop qNMR

• Quantification of Monosodium Glutamate in Beef, Chicken, and Vegetable

• Quantification of Pseudoephedrine in OTC Medications

• Quantification of Active Pharmaceutical Ingredients Present in Over-the-Counter Medication via 1H NMR Spectroscopy

• Divalent Metal Cation Assays Using EDTA and Benchtop Quantitative NMR

• Using qNMR to determine the purity of commercial chemicals

  USP Application Notes:

• Assays of Diethyl Sebacate via 1H Benchtop qNMR: an Alternative Approach to
  Quality Control (2024)

• Simultaneous Degree of Polymerization and Purity Assays of Octoxynol 9 Using 1H Benchtop NMR Spectroscopy (2024)

• Acetyltributyl Citrate and Tributyl Citrate: Plasticizer Assays for Quality Control Using Benchtop NMR Spectroscopy (2024)

• Sodium Formaldehyde Sulfoxylate: Bleaching Agent Assays via 1H Benchtop NMR Spectroscopy (2023)

• Assays of Sodium Succinate via 1H Benchtop qNMR: a Direct and Efficient Approach (2023)

• Paraben Assays: An Efficient and Greener Alternative to HPLC (2023)

• Degree of Deacetylation Determination in Chitosan According to USP-NF Monograph Method Using 1H Benchtop NMR (2022)

• Average Polymer Length Determination for Polyoxyl 10 Oleyl Ether (Oleth-10) According to USP-NF Monograph Method Using 1H Benchtop NMR (2022)

• Average Polymer Length Determination for Polyoxyl 20 Cetostearyl Ether (Ceteareth-20) According to USP-NF Monograph Method Using 1H Benchtop NMR (2022)

• Molar Substitution Determination in Hydroxypropyl Betadex According to USP-NF/Ph. Eur. (1804) Monograph Method Using 1H Benchtop NMR (2022)