引用本文:董铮,王琳,田芳,陆鸿飞.荧光探针PTAID固态试纸法测定土壤中Pd2+和Cu2+的比较研究[J].环境监控与预警,2024,(2):53-58
DONG Zheng,WANG Lin,TIAN Fang,LU Hongfei.A Comparative Study of Pd2+ and Cu2+ in Soil by PTAID and ICP-OES[J].Environmental Monitoring and Forewarning,2024,(2):53-58
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荧光探针PTAID固态试纸法测定土壤中Pd2+和Cu2+的比较研究
董铮1,王琳1,田芳1,陆鸿飞2
1. 江苏省镇江环境监测中心,江苏省镇江土壤特色实验室,江苏 镇江 212000; 2.江苏科技大学,江苏 镇江 212003
摘要:
将新型荧光探针PTAID以固态形式用于检测土壤中的钯离子(Pd2+)和铜离子(Cu2+),检出限分别为 0.63 和1.19 μmol/L,说明探针PTAID对Pd2+ 和Cu2+有很高的灵敏度。通过条件优化实验,说明探针PTAID在pH值为4.0~12.0,反应时间为0~15 min内可以快速检测Pd2+和Cu2+。对土壤样品中的Pd2+和Cu2+进行检测,该方法与电感耦合等离子体发射光谱法相比,准确度和精密度均较高,具有响应时间短、灵敏度高、选择性好等优点,在土壤重金属检测方面具有广阔的应用前景。
关键词:  荧光探针PTAID  土壤重金属  钯离子  铜离子  电感耦合等离子体发射光谱
DOI:DOI:10.3969/j.issn.1674-6732.2024.02.008
分类号:X833
基金项目:江苏省环境监测科研基金项目(1907)
A Comparative Study of Pd2+ and Cu2+ in Soil by PTAID and ICP-OES
DONG Zheng1, WANG Lin1, TIAN Fang1, LU Hongfei2
1.Zhenjiang Soil Characteristic Laboratory, Jiangsu Province Zhenjiang Environmental Monitoring Center,Zhenjiang,Jiangsu 212000,China;2.Jiangsu University of Science and Technology,Zhenjiang,Jiangsu 212003,China
Abstract:
A novel fluorescent probe PTAID was successfully used to detect Pd2+ and Cu2+ in soil by solid form. The detection limits of PTAID for Pd2+ and Cu2+ were 0.63 and 1.19 μmol/L, respectively, indicating that the probe PTAID had high sensitivity to Pd2+ and Cu2+. Experiments on condition optimization showed that the probe PTAID can quickly detect Pd2+ and Cu2+ in the range of pH 4.0~12.0 and the reaction time is 0~15 min. Compared with ICP-OES method, it has higher accuracy and precision, and has the advantages of high sensitivity, strong selectivity, fast and strong anti interference.
Key words:  Fluorescent probe PTAID  Heavy metals in soil  Palladium ion  Cupric ion  ICP-OES