作为有机碳测量的替代品的总光:对快速水和废水质量评估的影响
Bianca M Souza-Chaves1, Diego Salido Alejandri1, Walter Q Betancourt2
1Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ 85721, United States; Water and Energy Sustainable Technology (WEST) Center, University of Arizona, Tucson, AZ 85745, United States.
The Science of the total environment
|August 26, 2025
概括
总光 (TF) 有效地测量了水中的总有机碳 (TOC) 和溶解有机碳 (DOC). 这种快速方法有助于评估水质和处理效率,但对于超纯水的分析需要校准.
科学领域:
- 环境化学
- 分析化学
- 水质监测
背景情况:
- 精确测量水中的有机碳对于环境监测和处理过程控制至关重要.
- 测量总有机碳 (TOC) 和溶解有机碳 (DOC) 的传统方法可能耗时且资源密集.
- 开发快速,高吞吐量的分析技术对于有效的水质评估至关重要.
研究的目的:
- 在各种水样中研究全光 (TF) 作为可靠的替代物来测量TOC和DOC.
- 确定TF测量与已确定的TOC/DOC分析方法之间的相关性.
- 评估TF对实时水质监测和处理效率评估的潜力.
主要方法:
- 使用TOC分析仪分析废水样本,使用有机碳探测器进行尺寸排除色谱 (SEC-OCD) 和3D激发发射矩阵 (EEM) 光谱.
- 相关性分析以确定TF和DOC度之间的关系.
- 根据有机含量对光数据进行分组分析.
主要成果:
- 在高于0. 5mg/ L的度中观察到TF与DOC之间存在强烈的线性相关性 (R2=0. 997).
- 在0.5mg/L以下的度下,TF倾向于低估DOC,这表明没有校准的超纯水的限制.
- 光数据通过有机含量有效区分样本,支持TF作为水质指标.
结论:
- 总光 (TF) 在各种水矩阵中作为快速和成本有效的TOC/DOC测量替代品具有显著的前景.
- 这种方法提供了高吞吐量分析,简化了水质评估和监测处理效率.
- 虽然TF对于一般的有机度指示有价值,但对于如微量有机碳检测等高度敏感的应用,则需要进行特定的校准.
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