Human Carbohydrate Antigen 19-9 (CA19-9) ELISA Kit (CLIA)

Blue ice

Tumor immunity; Hepatology; Gastroenterology;

For research use only. Not for diagnostic procedures.

8 months

The microplate provided in this kit has been pre-coated with an antibody specific to Carbohydrate Antigen 19-9 (CA19-9). Standards or samples are then added to the appropriate microplate wells 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. Then the mixture of substrate A and B is added to generate glow light emission kinetics. Upon plate development, the intensity of the emitted light is proportional to the Carbohydrate Antigen 19-9 (CA19-9) level in the sample or standard.;

2 hours, 40min

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Carbohydrate Antigen 19-9 (CA19-9) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Carbohydrate Antigen 19-9 (CA19-9) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100 Intra-Assay: CV<10% Inter-Assay: CV<12%

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

This assay has high sensitivity and excellent specificity for detection of Carbohydrate Antigen 19-9 (CA19-9). No significant cross-reactivity or interference between Carbohydrate Antigen 19-9 (CA19-9) and analogues was observed.