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Invitrogen
Human CA19-9 Rapid ELISA Kit
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Product Specifications
Analytical sensitivity
3.75 U/mL
Assay range
6.25-400 U/mL
Sample type/volume
Serum
50 µL
Plasma
50 µL
Hands-on time
15 min
Time-to-result
1 hr 30 min
Homogenous (no wash)
No
Interassay CV
<10%
Intraassay CV
<10%
Instrument
Absorbance Microplate Reader
Product size
96 Tests
Contents
Pre-coated 96 well plate, Standard, HRP Conjugate, Standard & Sample Diluent, HRP Conjugate Diluent, Wash Buffer, TMB Substrate, Stop Solution, Plate Sealer
Shipping conditions
Wet ice
Storage
Refer to product documentation for component specific storage temperature.
Protein name
CA19-9
Species (tested)
Human
Assay kit format
Rapid ELISA Kit
Detector antibody conjugate
HRP
Label or dye
Unconjugated
About This Kit
The Human CA19-9 (Carbohydrate antigen19-9) ELISA quantitates CA19-9 in serum and plasma.
Principle of the method
The Human Carbohydrate antigen19-9 (CA19-9) solid-phase sandwich ELISA (enzyme-linked immunosorbent assay) is designed to measure the concentration of Carbohydrate antigen19-9 (CA19-9) in biological samples. A target-specific antibody has been pre-coated in the wells of the supplied microplate. Samples, standards, or controls are added into these wells and bind to the immobilized (capture) antibody.
The sandwich complex is formed by the addition of a second (HRP-linked) detection antibody specific to Carbohydrate antigen19-9 (CA19-9). Excess reagents are washed from the plate.
A substrate solution is added that reacts with the enzyme-antibody-target complex to produce a measurable signal. The enzyme-substrate reaction is terminated by the addition of stop solution. The intensity of the signal, measured spectrophotometrically at 450 ± 2 nm, is directly proportional to the concentration of Carbohydrate antigen19-9 (CA19-9) present in the original specimen.
Rigorous validation:
Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Target information
Mucin glycoprotein is a Sialyl Lewis A structure which is synthesized from type 1 blood group precursor chains and is present in individuals expressing the Lewis A and/or Lewis B blood group antigens. In normal tissues, sialyl Lewis A antigen is present in ductal epithelium of the breast, kidney, salivary gland, and sweat glands. Its expression is greatly enhanced in serum as well as in the majority of tumor cells in gastrointestinal (GI) carcinomas, including adenocarcinomas of the stomach, intestine, and pancreas. Preoperative elevated CA19-9 levels in patients with stage I pancreatic carcinoma decrease to normal values following surgery. When used serially, CA19-9 can predict recurrence of disease prior to radiographic or clinical findings.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases : CA19 9, CA19.9, CA-19.9
Performance Guarantee
If an Invitrogen™ immunoassay doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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