
																
																	Enzyme immunoassay of insulin at picomolar levels based on the coulometric determination of hydrogen peroxide 
																
																
																
															Keywords: ایمونواسی آنزیم الکتروشیمیایی; Insulin; Electrochemical enzyme immunoassay; Glucose oxidase activity; [Os(bpy)2Cl]+/HRP polymer; Charge accumulation