ZHU Yutian, LI Yanling, LI Yingying, ZHENG Yanyan, HE Lixiang, LI Jincai. Results and Analysis of Proficiency Testing Program of Determination of Residues of Nitrofuran Drug in FishJ. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS, 2024, 60(3): 318-323. DOI: 10.11973/lhjy-hx202403014