Products

Rat bCTx(Beta-Crosslaps) ELISA Kit
One-click to copy product information
ELK1546
Size： Price：
48 T $320.00
96 T $458.00
96 T*5 $1947.00
Manual MSDS Send email to us

Overview

Product name: Rat bCTx(Beta-Crosslaps) ELISA Kit
Reactivity: Rat
Alternative Names: Beta CTx; b-CTx; bCTXI; bCTX-I; B-Cr; BCL; Type I Collagen C-Telopeptide-Related Fraction
Assay Type: Competitive Inhibition
Sensitivity: 39.1 pg/mL
Standard: 8000 pg/mL
Detection Range: 125-8000 pg/mL
Sample Type: serum, plasma, cell lysates, cell culture supernates and other biological fluids
Assay Length: 2h
Research Area: Bone metabolism;
Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Rat bCTx. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat bCTx. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. 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 Rat bCTx in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (pg/mL) OD Corrected OD
8000.00 0.175
4000.00 0.367
2000.00 0.583
1000.00 0.857
500.00 1.156
250.00 1.511
125.00 1.799
0.00 2.115

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 bCTx and the recovery rates were calculated by comparing the measured value to the expected amount of bCTx in samples.
Matrix Recovery range Average
serum(n=5) 82-96% 89%
EDTA plasma(n=5) 78-90% 84%
Heparin plasma(n=5) 85-97% 91%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of bCTx 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) 85-99% 82-96% 92-101% 82-90%
EDTA plasma(n=5) 79-92% 80-93% 81-98% 89-102%
Heparin plasma(n=5) 87-98% 92-104% 82-96% 95-102%