circular paper chromatography

例句：

1. 1. This method is widely used in theanalysis of complex samples.
   这种方法在复杂样品的分析中被广泛使用。
2. 2. The circularpaper chromatographywas used to detect the presenceof certain compounds in the sample.
   圆盘纸色谱法被用来检测样本中某些化合物的存在。
3. 3. The circular paper chromatography has proven to be an effectivetool for separating and identifying differentcomponents in a mixture.
   圆盘纸色谱法已被证明是一种有效的工具，用于分离和识别混合物中的不同成分。