Using filtrates of urine centrifuged through a microconcentrator membrane to distinguish false and true positives for protein by sulfosalicylic acid precipitation.
D001557:Benzenesulfonates; D002498:Centrifugation; D011232:Chemical Precipitation; D005189:False Positive Reactions; D005374:Filtration; D006801:Humans; D008832:Microchemistry / Q000379:methods; D011507:Proteinuria; D012459:Salicylates
D001557:Benzenesulfonates; D012459:Salicylates; C003366:sulfosalicylic acid