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Publication Date
Sun Jan 19 2025
Journal Name
Iraqi Journal Of Biotechnology
Volume
9
Issue Number
4
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STUDY ON TOTAL PEROXIDASE ENZYMES ACTIVITIES AND SOME TRACE ELEMENTS IN PATIENTS WITH BREAST TUMORS
Breast tumor
Peroxidase activity
Trace elements
Ali W.
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Publication Date
Wed Dec 30 2020
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Experimental Investigation of Moisture Sorption Isotherms for Mefenamic Acid Tablets
Sorption isotherms
Equilibrium moisture content
relative humidity
water activity
Mathematical modeling
Mefenamic acid.
Maha Muhyi
Hassanain A.
Nada S.
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   The moisture sorption isotherms of Mefenamic acid tablets were investigated by measuring the experimental equilibrium moisture content (EMC) using the static method of saturated salt solutions at three temperatures (25, 35, and 45°C) and water activity range from 0.056 to 0.8434. The results showed that EMC increased when relative humidity increased and the sorption capacity decreased, the tablets became less hygroscopic and more stable when the temperature increased at constant water activity. The sorption curves had a sigmoid shape, type II according to Brunauer’s classification. The hysteresis effect was significant along with the whole sorption process. The results were fitted to three models: Oswin, Smith, and Guggen

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