fixed-bed ion exchange

例句：

1. 1.The fixed-bed ion exchange process is crucial for removing impurities from water.
   固定床离子交换过程对于从水中去除杂质至关重要。
2. 2.In the fixed-bed ion exchange column, the analyte binds to the resin and is eluted with a solution of the same or a different ionic strength.
   在固定床离子交换柱中，分析物与树脂结合，并用相同或不同离子强度的溶液洗脱。
3. 3. The fixed-bed ion exchange method is widely used in the field of environmental science for the removalof pollutants from wastewater.
   固定床离子交换方法在环境科学领域被广泛使用，用于从废水中去除污染物。