JJournal of environmental chemical engineering3/28/2026A novel EDTA-modified filter paper for highly sensitive detection of trace Pb and Cr in water by EDXRFKai Zeng·Bo Wang·Qing Shan·Wenbao Jia·Dong Lao·Jiahui Zhu·Yongsheng LingRead at Journal of environmental chemical engineeringTagsX-ray Spectroscopy and Fluorescence AnalysisRadiation