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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
Catalog Number: MET-5123, MET-5124
Measure ALT activity from serum, plasma, cell or tissue lysates
Colorimetric and fluorometric plate-based detection formats
ALT positive control included
Catalog Number: MET-5131, MET-5132
96-well colorimetric or fluorometric detection formats
Detect concentrations as low as 4 µM (colorimetric) or 0.2 µM (fluorometric)
Suitable for serum, plasma, cell suspensions, and tissue homogenates
Alpha-ketoglutarate standard provided for quantitation of unknown samples
Catalog Number: VPK-5145, VPK-5145-5
Measures the nucleocapsid (N) protein of SARS-CoV-2
Detect concentrations as low as 1.25 ng/mL of the nucleocapsid protein
Recombinant SARS-CoV-2 Nucleocapsid protein standard included
Catalog Number: MET-5177
Detection sensitivity limit of approximately 1.6 µM Tryptophan
Suitable for use with lysates, serum, plasma, urine and culture supernatants
L-Tryptophan standard included
NOTE: Each sample replicate requires 2 assays for proper data calculation.