Non-gel sieving mode of capillary electrophoresis (CE) recommended by Hjerten and Zhu was used to determine the polymerase chain reaction (PCR) product of the hepatitis B virus. The 565 bp fragment of DNA of the hepatitis B virus was checked within only 12 min. Quantitative analysis of the fragments is also possible. Several samples of the patients were measured and the results were compared with those got from PCR-conventional electrophoresis and those from enzyme linked immunosorbent assay. Because the ex...