three wavelength spectrophotometry

例句：

1. 1. This technique iswidely used in the analysis of biological samples.
   这种方法在生物样本的分析中被广泛使用。
2. 2.The three-wavelength spectrophotometric method has been proven to be more accurate than other methods.
   三波长分光光度法已被证明比其他方法更准确。
3. 3.In this study, we used the three-wavelength spectrophotometric method to analyze the chemical composition of the sample.
   在本研究中，我们使用三波长分光光度法来分析样品的化学成分。