Study on Rapid Detection and Strategy Optimization of Scale Inhibitor Based on Raman Scattering Technology
CAO Jia-lei1, 2, 4, CHENG Zhi-yang3, WANG Jie1, 2, 4, JIA Hui1, 2, 4*
1. State Key Laboratory of Advanced Separation Membrane Materials, Tianjin 300387, China
2. School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
3. State Key Laboratory of Green Papermaking and Resource Recycling, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, Faculty of Light Industry, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
4. Cangzhou Institute of Tiangong University, Cangzhou 061000, China
Abstract：Scale inhibitors play a critical role in reverse osmosis systems, and their trace detection is of great significance for ensuring the efficient and stable operation of the system. However, traditional ultraviolet-visible spectrophotometry (UV-Vis) has limitations in terms of sensitivity and accuracy. This study employs Raman scattering (RS) and surface-enhanced Raman scattering (SERS) technologies to develop a rapid detection method for the scale inhibitor aminotrimethylene phosphonic acid (ATMP) in reverse osmosis (RO) systems, comparing the performance and practical applicability of different methods. The results show that RS and SERS significantly outperform UV-Vis in terms of sensitivity, accuracy, and resistance to interference, with rapid response times. RS achieves detection times of less than 4 minutes within a range of 0.5~1.0 mg·L-1, making it suitable for rapid quantitative detection of ATMP in concentrated water; SERS technology exhibits a higher sensitivity range in 0.1~0.5 mg·L-1, making it suitable for precise identification of trace amounts of ATMP in feedwater. In industrial background water samples, RS and SERS maintain low error rates even under typical ionic and organic interference, demonstrating potential practical application prospects. Based on the characteristics of the applicable concentration ranges for RS and SERS, this study optimized the detection strategies for ATMP in feedwater and concentrated water, providing a feasible technical approach for efficient monitoring of scale inhibitors in RO systems.
曹加蕾，程志杨，王 捷，贾 辉. 基于拉曼散射技术的阻垢剂快速检测及策略优化研究[J]. 光谱学与光谱分析, 2025, 45(11): 3288-3293.
CAO Jia-lei, CHENG Zhi-yang, WANG Jie, JIA Hui. Study on Rapid Detection and Strategy Optimization of Scale Inhibitor Based on Raman Scattering Technology. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2025, 45(11): 3288-3293.
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