KMID : 0369819750050030366
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Jorunal of Korean Pharmaceutical Sciences 1975 Volume.5 No. 3 p.366 ~ p.373
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The Study on the Hardness of Ointment ( ¥²); Influences of Powder on the Apparent Logarithmic Hardness of Ointments
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±èÁ¾°©/Kim JK
±è±â¼º/À̼÷°æ/Kim KS/Lee SK
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Abstract
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The relationship between powders and apparent logarithmic hardness of ointments were clearly demonstrated. The followings were obtained as the results. 1. Apparent logarithmic hardness of ointment were affected by the powders such as zinc oxide, salicylic acid, soluble starch. and talc. 2. The ointments which are added powder have different two slops, $k_1\;and\;k_2$ ¼ö½Ä À̹ÌÁö. 3. The slopes, $k_1\;and\;k_2$ ¼ö½Ä À̹ÌÁö were directly correlated and the critical points, were proportional to $k_1\;and\;k_2$ ¼ö½Ä À̹ÌÁö values. 4. The slope, ka is at least $6{\sim}91$ ¼ö½Ä À̹ÌÁö times more sensitive, than the slope, $k_1$ ¼ö½Ä À̹ÌÁö, and 25 times more sensitive in average. It was suggested from the results that the quantity of powers which is added to the ointment must be within the critical point.
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