Determination of inactivation of HBV-DNA cluld be inactivated with active chlorine 1250 mg/L for 60 minutes,or 2 500 mg/L for 30 minutes,10 pg HBV-DNA in purified Dane particles could be inactivated by active chlorine 625 mg/L for 10 minutes.

• 有效氯2500mg/L作用30分钟以上可使10倍PCR灵敏度的纯化Dane颗粒中HBVDNA转阴； 有效氯625mg/L作用30分钟或1250mg/L作用10分钟可使10倍PCR灵敏度的纯化Dane颗粒上HBsAg转阴。