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AB-358

Analysis of residual moisture in a lyophilized pharmaceutical product by near-infrared spectroscopy (NIRS)


Summary

This Application Bulletin describes the method of near-infrared spectroscopy in diffuse reflection for the purpose of determining residual moisture in a lyophilized pharmaceutical product. Numerous sample vials containing freeze-dried pharmaceuticals were spiked with varying amounts of water for calibration purposes. The resulting differences in the absorption wavelengths of the OH-oscillation were correlated with the water content determined by Karl Fischer titration using the algorithm of multiple linear regression (MLR).

İletişim

Metrohm Turkey

Ayazağa Mah. Azerbaycan Cad. No. 3I
34396 İstanbul

İletişim

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// Tablets, capsules, pharmaceutical powders