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紫外检测器由于具有灵敏度高,使用稳定方便等优点,是高压液体色谱仪上普遍装备的检测器。为适合灵敏度高,死体积小的要求,结构上有不少特点,特别是光传感器的选择上更是如此。通常用在紫外检测器上的光电器件是光电管,光电倍增管,硅光电池,光敏电阻等。使用硅光电池和光敏电阻时,由于他们对紫外的敏感性差,一般均需在光电器件前放置萤光增感板,使紫外辐射转换成可见光后记录。但在弱光条件下,光敏电阻的响应速度显著
UV detector due to its high sensitivity, the use of stable and convenient advantages, is generally equipped with high-pressure liquid chromatography detector. To suit the requirements of high sensitivity and small dead volume, there are many structural features, especially the choice of light sensor. Optoelectronic devices commonly used in UV detectors are phototubes, photomultiplier tubes, silicon photovoltaic cells, photoresistors and the like. The use of silicon solar cells and photoresistors, due to their poor sensitivity to UV, are generally required to place fluorescent devices in front of photovoltaic panels, the UV radiation into visible light after the record. However, in low light conditions, the photoresistor’s response speed is significant