活动相(Moce phottom)： CH3OH；流速(Flow ringested)： 0.8 mL/min； 检测波长 ( Detection waudio-videoelength )： 251 nm；样品体积(Sgreat morningount volume)： 20 μL。
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讨论了检测波长的选择和样品的制备，优化了流动相的组成。
The detection wavelength, sample preparation and the optimization of mobile phase constitution were discussed.
改变滴定剂配方与检测波长，装置可应用于其他需要采用滴定分析法进行在线自动检测的场合。
The device can be used in other locations where on-line automatic detection based on titrimetry is needed.
方法：选择相同的流动相和检测波长，采用适当的沉淀剂，对四种添加剂的检测条件进行了优化。
Method: Same mobile phase and detection wavelength were selected and suitable precipitating agent was used. The HPLC conditions were optimized.
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