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An HPLC method was established to control the quality of PolygonumavculareL. The active ingredients in PolygonumavculareL. samples were extracted with methanol, and then analyzed by high-performance liquid chromatography (HPLC). The fingerprint of PolygonumavculareL. as well as its 11 typical peaks were established. The HPLC method demonstrated good precision, reproducibility, and stability, with the relative standard deviations of retention time and peak area less than 3%. 相似文献
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In this paper, the feasibility and advantages of employing high performance liquid chromatographic (HPLC) fingerprints combined with pattern recognition techniques for quality control of Shenmai inject... 相似文献
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通过对目前车辆安全防盗方面的分析,介绍了车辆在安全防盗与车门解锁之间的关系.利用51单片机构建了某汽车防盗系统.该系统由指纹模块、AT89C51、蜂鸣器驱动模块、继电器驱动模块、液晶显示模块及单片机最小系统电路构成,可以对汽车进行实时监控.当发生盗窃的情况时,指纹识别模块会进行识别并会发出警报. 相似文献
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