“…Although these methods are very accurate and sensitive, they are costly and require complex sample pretreatment steps and trained personnel (Mukunzi, Suryoprabowo, Song, Liu, & Kuang, 2018;Qu et al, 2019;Wang et al, 2018;Zeng, Jiang, Liu, Song, & Kuang, 2018). Immunoassays are superior to chromatographic methods in screening tests for their simplicity, sensitivity, and high-throughput capabilities (Chen et al, 2017; Kong et al, 2017;Wang, Luo, Chen, Huang, & Jiang, 2016). Recently, some immunoassays for detecting residues of flunixin and other NSAIDs have been reported (Lin et al, 2018).…”