Document Detail


Quantitative 35Cl nuclear quadrupole resonance in tablets of the antidiabetic medicine Diabinese.
MedLine Citation:
PMID:  19492808     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Pulsed (35)Cl nuclear quadrupole resonance (NQR) experiments have been performed on 250-mg tablets of the antidiabetic medicine Diabinese to establish the conditions needed for noninvasive quantitative analysis of the medicine in standard bottles. One important condition is the generation of a uniform radio-frequency (RF) field over the sample, which has been achieved by two designs of sample coil: one of variable pitch, and the other a resonator that has been fabricated from a single turn of copper sheet with a longitudinal gap bridged by tuning capacitors. The results from blind tests show that the number of tablets in a bottle could be predicted to within +/-3%.
Authors:
Elizabeth Tate; Kaspar Althoefer; Jamie Barras; Michael D Rowe; John A S Smith; Gareth E S Pearce; Stephen A C Wren
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Analytical chemistry     Volume:  81     ISSN:  1520-6882     ISO Abbreviation:  Anal. Chem.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-06-30     Completed Date:  2009-09-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370536     Medline TA:  Anal Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5574-6     Citation Subset:  IM    
Affiliation:
King's College London, Department of Mechanical Engineering, Strand, London, WC2R 2LS, United Kingdom.
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MeSH Terms
Descriptor/Qualifier:
Chlorine / chemistry
Chlorpropamide / chemistry*
Hypoglycemic Agents / chemistry*
Isotope Labeling
Magnetic Resonance Spectroscopy / methods*
Radio Waves
Tablets
Chemical
Reg. No./Substance:
0/Hypoglycemic Agents; 0/Tablets; 7782-50-5/Chlorine; 94-20-2/Chlorpropamide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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