结论药品测定溶出度或释放度时，应先考察溶出度测定仪的自动取样装置对其是否有吸附作用，否则影响测定结果。
CONCLUSION the adsorption should be tested when automatic sampling device is used to determine dissolution and releasing degree for different drugs, or the results of determination might be affected.
结果通过两种过滤模式及回收率的测定显示，自动过滤取样装置对硝苯地平（I）有吸附作用。
RESULTS The result of percent recovery showed that automatic sampling device has adsorption to Nifedipine sustained release tablets(I).
结果通过两种过滤模式及回收率的测定显示，自动过滤取样装置对硝苯地平（I）有吸附作用。
RESULTS The result of percent recovery showed that automatic sampling device has adsorption to Nifedipine sustained release tablets(I).
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