| 摘要 |
A simple, sensitive, reliable and safe method and device for detecting a polypeptide or glycoprotein antigen. The test involves concentration in the presence of polyvinylpyrrolidone by ultrafiltration of a sample of urine or serum from a subject; followed by determining the presence of said polypeptide or glycoprotein antigen or a particular subunit thereof in the concentrated sample.
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