“…2,3 Thus, the detection of Hcy has attracted a lot of attention in areas such as drug research, medical diagnosis and disease surveillance. To date, common methods for the determination of Hcy include gas chromatography-mass spectrometry (GC-MS), 4,5 high-performance liquid chromatography (HPLC), 6,7 capillary electrophoresis (CE) 8,9 and Fluorescence polarization immunoassay (FPIA). 10 Although these methods can offer good results, for the Hcy to provide more accurate and authoritative supporting information for the current diagnosis of clinically relevant diseases, it is necessary to overcome limitations of above methods (such as complex operation, expensive instrumentation and complicated pretreatment) and develop more rapid and convenient methods for the determination of Hcy with lower detection limits.…”