仪器种类: 其它振荡器、摇床
定时范围: 0-99分
振荡频率: 300 Osc/min
振荡幅度: 10度
恒温范围: 室温
摇板数量: 0
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此款手腕式振荡器已改进用于满足现行美国药典(USP)中二甲基硅油消泡性能测试。
技术参数:
半径距离:13.3±0.4cm
容器数量:2 x 2
振荡频率:300Osc/min
幅度:10o
最大负载:10 lbs
外型尺寸:20 x 19 x 18
电源:220V 50Hz
重量:68 lbs
选配:
附:二甲基硅油(Simethicone)消泡性能美国药典测试方法 Defoaming Activity
Foaming solution: 10 mg/mL of octoxynol 9 in water
Sample solution: 4 mg/mL of Simethicone in tertiary butyl alcohol. Shake vigorously.[Note—Warm slightly, if necessary, to dissolve. ]
Analysis
[Note—For each test, use a clean, unused, 250-mL glass jar. ]
Add, dropwise, 500 µL of the Sample solution to a clean, unused, cylindrical 250-mL glass jar, fitted with a 50-mm cap, containing 100 mL of the Foaming solution. Cap the jar, and clamp it in an upright position on a wrist-action shaker. Using a radius of 13.3±0.4 cm (measured from the center of the shaft to the center of the bottle), shake for 10 s through an arc of 10 at a frequency of 300 Osc/min; 30 strokes/min. Record the time required for the foam to collapse. The time, in s, for foam collapse is determined at the instant the first portion of foam-free liquid surface appears, measured from the end of the shaking period.
Acceptance criteria: The defoaming activity time does not exceed 15 s.
摇床85的工作原理介绍
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