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ELK Biotechnology

ELK3961

Human TNNT2(Troponin T Type 2, Cardiac) ELISA Kit

Human TNNT2(Troponin T Type 2, Cardiac) ELISA Kit

Size
Sensitivity
Detection range

Human TNNT2(Troponin T Type 2, Cardiac) ELISA Kit

Overview

Product name: Human cTnT/TNNT2(Troponin T Type 2, Cardiac) ELISA Kit
Reactivity: Human
Alternative Names: CMH2; cTnT; TnTc; Cardiomyopathy,Hypertrophic 2; Cardiac muscle troponin T; TNNT2; Troponin T Type 2, Cardiac
Assay Type: Sandwich
Sensitivity: 6.4 pg/mL
Standard: 1000 pg/mL
Detection Range: 15.63-1000 pg/mL
Sample Type: serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Assay Length: 3.5h
Research Area: Cardiovascular biology;
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 cTnT/TNNT2. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human cTnT/TNNT2. 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 cTnT/TNNT2, 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 cTnT/TNNT2 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 1.925 1.838
500.00 1.379 1.292
250.00 1.116 1.029
125.00 0.782 0.695
62.50 0.554 0.467
31.25 0.332 0.245
15.63 0.226 0.139
0.00 0.087 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 cTnT/TNNT2 and the recovery rates were calculated by comparing the measured value to the expected amount of cTnT/TNNT2 in samples.
Matrix Recovery range Average
serum(n=5) 85-97% 91%
EDTA plasma(n=5) 83-99% 95%
Heparin plasma(n=5) 85-97% 91%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of cTnT/TNNT2 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) 88-102% 87-102% 85-96% 87-101%
EDTA plasma(n=5) 96-103% 83-96% 87-98% 85-97%
Heparin plasma(n=5) 87-96% 92-105% 89-102% 92-101%
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