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ELK Biotechnology

ELK2159

Human GC(Glucagon) ELISA Kit

Human GC(Glucagon) ELISA Kit

$458.00 USD
$458.00 USD
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Size
Sensitivity
Detection range

Human GC(Glucagon) ELISA Kit

Overview

Product name: Human GC(Glucagon) ELISA Kit
Reactivity: Human
Alternative Names: Carbohydrate-Rich Portion of Platelet Membrane Glycoprotein Ib Alpha Polypeptide
Assay Type: Sandwich
Sensitivity: 7.3 pg/mL
Standard: 1000 pg/mL
Detection Range: 15.63-1000 pg/mL
Sample Type: Plasma
Assay Length: 3.5h
Research Area: Signal transduction;Hematology;
Test principle: 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 Human GC. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human GC. 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 Human GC, 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 Human GC in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (ng/mL) OD Corrected OD
1000.00 2.128 2.025
500.00 1.641 1.538
250.00 1.234 1.131
125.00 0.933 0.830
62.50 0.543 0.440
31.25 0.355 0.252
15.63 0.235 0.132
0.00 0.103 0.000

Precision

Intra-assay Precision (Precision within an assay)：CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays)：CV%<10%

Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

Recovery

Matrices listed below were spiked with certain level of recombinant GC and the recovery rates were calculated by comparing the measured value to the expected amount of GC in samples.
Matrix Recovery range Average
serum(n=5) 85-101% 93%
EDTA plasma(n=5) 83-97% 90%
Heparin plasma(n=5) 80-97% 88%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of GC and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Matrix 1:2 1:4 1:8 1:16
serum(n=5) 85-94% 87-96% 92-101% 82-98%
EDTA plasma(n=5) 85-99% 98-106% 86-99% 78-95%
Heparin plasma(n=5) 89-97% 85-94% 87-96% 85-97%
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