Albumin adsorption onto surfaces of urine collection and analysis containers

Abstract Background Adsorption of albumin onto urine collection and analysis containers may cause falsely low concentrations. Methods We added 125 I-labeled human serum albumin to urine and to phosphate buffered solutions, incubated them with 22 plastic container materials and measured adsorption by liquid scintillation counting. Results Adsorption of urine albumin (UA) at 5–6 mg/l was Conclusions Albumin adsorption differed among urine samples and plastic materials, but the total influence of adsorption was