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Catalog Number: STA-674, MET-5080
Detection sensitivity limit of 6.25 µM (colorimetric format) or 0.3 µM (fluorometric format)
Suitable for use with lysates, cell culture supernatants, serum, plasma, and urine
Glutamate standard included
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: 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-5056
Measures only free branched chain amino acids; does not detect peptides or proteins
Detection sensitivity limit of 15.6 µM
Suitable for use with lysates, serum, plasma, urine, and food samples
L-Leucine standard included
Catalog Number: VPK-5155, VPK-5155-5
Measures the spike protein (S1 subunit) of SARS-CoV-2
Detects concentrations as low as 31.3ng/ml of the spike protein S1
Recombinant SARS-CoV-2 spike protein S1 standard included