PURIFIED HEPATITIS B SURFACE ANTIGEN

PRODUCT CODE: BH101

PRODUCT: PURIFIED HBsAg AY, 95%

PREPARATION & PRESENTATION: Purified HBsAg is composed of small spherical particles and a few short Filaments. The material does not contain viral particles.

STORAGE & STABILITY: The antigen is stable when stored properly. Please keep refrigerated ( 4 - 8° Celsius) at concentration supplied. DO NOT FREEZE. Diluted samples especially at £ 0.1 mg may loose antigenic potency after prolonged storage. Please use proper aliquots for immediate use when diluted samples are needed. The antigen is supplied at relatively high concentration for assured stability during storage ( 5 – 10 mg/ml). The samples are suspended in 0.02 M Na phosphate containing 0.02% Sodium Azide.

PURITY: >95% by SDS-PAGE

CAUTION: The purified material does not contain external impurities as measured by SDS-PAGE. The only detectable impurities are aggregates of serum albumin bound to the Pre-S receptors on the surface of HBsAg particles. In our experience this protein has a stabilizing effect on the HBsAg particles. When stored properly the antigen retains its antigenic potency (at 4 – 8 ° Celsius; conc 5 – 10 mg/ml) for as long as a five year period.

FOR RESEARCH USE ONLY HANDLE WITH CAUTION