Anomalous infrared spectra of codeine free base in potassium bromide pellet |
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Authors: | Hiromitsu Kanai Veronica Inouye Reginald Goo |
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Affiliation: | Chemistry Section, Laboratories Branch, Hawaii State Department of Health, Honolulu, HI 96813 U.S.A. |
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Abstract: | When codeine free base is incorporated into a potassium bromide pellet, its infrared spectrum can show anomalous phenomena between approximately 1100 cm?1 and 750 cm?1. Investigation of the problem indicated that the anomalies are related to rapid formation of the codeine free base monohydrate during sample preparation. |
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