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Merck
CN
  • Quantitative 35Cl nuclear quadrupole resonance in tablets of the antidiabetic medicine Diabinese.

Quantitative 35Cl nuclear quadrupole resonance in tablets of the antidiabetic medicine Diabinese.

Analytical chemistry (2009-06-06)
Elizabeth Tate, Kaspar Althoefer, Jamie Barras, Michael D Rowe, John A S Smith, Gareth E S Pearce, Stephen A C Wren
摘要

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%.

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Supelco
氯磺丙脲, analytical standard, ≥97%