A new screening method for proteinuria using Erythrosin B and an automated analyzer-Rapid, sensitive and inexpensive determination

► We have developed a sensitive method using Erythrosin B for detection of proteinuria. ► The detection limit, 2.4 mg/L is superior to conventional dye-binding methods. ► Our method showed an excellent correlation with turbidimetric immunoassay. ► The method gives an inexpensive screening in a population using automated analyzer. ► The proposed method will be useful in the diagnosis of early stage kidney disease.