photometric determination

例句：

1. 1.The method of photometric determination is widely used in chemical analysis.
   光度测定法在化学分析中被广泛使用。
2. 2.In this study, we applied the photometric determination method to analyze the concentration of pollutants in water samples.
   在本研究中，我们应用光度测定法来分析水样中的污染物浓度。
3. 3. The photometric determination method provides a precise and accurate way to measure the concentration of substances.
   光度测定法提供了一个精确且准确的测量物质浓度的方法。