- 1. The improved method utilizes a chromogen that forms a colored complex specifically with copper ions.
- 改进的方法利用了铜离子形成的特定颜色反应。
来自互联网
- 2. The improved method utilizes a chromogen that forms a colored complex specifically with copper ions.
- 改进的方法利用了铜离子形成的特定颜色反应。
来自互联网
