水溶液
检出限
螯合树脂
化学
螯合作用
磷
萃取(化学)
分析化学(期刊)
固相萃取
傅里叶变换红外光谱
荧光
光谱学
亚氨基二乙酸
核化学
无机化学
材料科学
色谱法
金属
物理化学
化学工程
有机化学
水溶液中的金属离子
工程类
物理
量子力学
作者
Kecheng Qiao,Jinan Xia,Lidong Wu
标识
DOI:10.1016/j.colsurfa.2022.130866
摘要
Phosphorus elements were extracted from aqueous solutions by iron-modified chelate resin YZS60. The characterization of the iron-modified chelate resin by using scanning electron microscopy, energy disperse spectroscopy, Fourier transform infrared spectroscopy, and x-ray photoelectron spectroscopy showed that iron(Ⅲ) was successfully grafted onto the iminodiacetic acid functional group of chelating resin. The resin chelated with phosphorus emitted strong fluorescence after excited by very low power semiconductor laser, which was used for the detection of phosphorus in aqueous solutions, resulting in improving the sensitivity significantly for the detection of phosphorus in aqueous solutions. The fluorescence intensities of the chelates were proportional to the phosphorus concentrations with highly linear correlation coefficients R2 = 0.991 and the limit of detection of 0.018 mg/L was achieved. This work provides a simple, low-cost, and non-destructive method for the extraction and detection of phosphorus in aqueous solutions.
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