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Catalog Number: VPK-5003, VPK-5003-5
Measures the Hepatitis B “e” antigen (HBeAg) in purified virus or unpurified viral supernatant
Detection limit of approximately 150 pg/ml
HBeAg standard included
Video: Color Development in an ELISA
Catalog Number: CBA-5020, CBA-5021
Proprietary contraction plate eliminates release step
Uses 3D collagen matrix to measure changes in collagen gel size
Includes optional cell contraction inhibitor
Catalog Number: MET-5150
Detects xanthine/hypoxanthine levels as low as 6.25 µM
Compatible with cell or tissue lysates, serum, plasma, or urine
Xanthine standard included