Related Experiment Video
Updated: Aug 15, 2026

Application and Methodology of the Non-destructive 19F Time-domain NMR Technique to Measure the Content in Fluorine-containing Drug Products
Published on: August 22, 2017
Proton magnetic resonance spectroscopic determination of bethanechol chloride in tablets
Abstract:
A simple and reliable proton magnetic resonance spectroscopic method was developed for the assay of bethanechol chloride in tablets. The proposed method entails a minimum of procedural steps and reagents. The recovery of bethanechol chloride from synthetic formulations was 99.9 +/- 0.4% (n = 15), CV = 0.4%. Mean assay values for 25 and 10 mg commercial tablets were 100.5% (n = 8) and 99.7% (n = 7) of declared, respectively. A detailed interpretation of the proton magnetic resonance spectrum is also presented.
More Related Videos
13:35A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites
Published on: March 1, 2018
05:05Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy
Published on: June 6, 2025
Related Concept Videos
Proton (¹H) NMR: Chemical Shift
Absorption signals of all the protium nuclei in a...
¹H NMR of Labile Protons: Deuterium (²H) Substitution
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
NMR Spectroscopy of Benzene Derivatives
NMR Spectroscopy: Chemical Shift Overview
For instance, the proton...
¹H NMR Chemical Shift Equivalence: Enantiotopic and Diastereotopic Protons
In chiral compounds such as 2-butanol, replacing the methylene hydrogens at C3 produces a pair of...