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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-5022, MET-5023
Suitable for use with serum, plasma, urine, lysates, and cell culture supernatants
Detection sensitivity of 3.75µM (colorimetric) or 0.12 µM (fluorometric)
Glycogen standard included
NOTE: Each sample replicate requires 2 assays for proper data calculation.
Catalog Number: MET-5054, MET-5055
Measure only free L-amino acids (except glycine); does not detect peptides or proteins
Detection sensitivity limit of 62.5 µM (colorimetric) or 6.25 µM (fluorometric)
Suitable for use with lysates, serum, plasma, urine, and food samples
L-Alanine standard included
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