Product info:

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Carbohydrate Antigen 19-9(CA19-9). Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Carbohydrate Antigen 19-9(CA19-9). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Carbohydrate Antigen 19-9(CA19-9), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Carbohydrate Antigen 19-9(CA19-9) in the samples is then determined by comparing the OD of the samples to the standard curve.

Research area:

Tumor immunity;Hepatology;Gastroenterology;

Species reactivity:

Human

Alternative names:

sialylated Lewis(a)Antigen; Cancer Antigen 19-9

Sample type:

Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

Detection range:

Sensitivity:

0.28 U/mL

Standard:

50 U/mL

Detection method:

Sandwich

Assay time:

3.5h

More info:

Email: info@sobekbio.com

Orders:

Email: info@sobekbio.com