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Ras Activation ELISA

Catalog Number: STA-440
Raf1 RBD detects only the active form of Ras Convenient 96-well strip-well format   Video: Color Development in an ELISA

HBsAg ELISA Kit

Catalog Number: VPK-5004, VPK-5004-5
Measures the Hepatitis B surface antigen (HBsAg) in purified virus or unpurified viral supernatant Detection limit of approximately 1 ng/ml HBsAg standard included   Video: Color Development in an ELISA

Xanthine/Hypoxanthine Assay Kit

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