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Human NTXⅠ(Cross Linked N-telopeptide of Type Ⅰ Collagen) ELISA Kit

  • Cat.No.:E-EL-H0836

  • Reactivity: Human

To Purchase E-EL-H0836

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609
Qty:

Product Details

Properties

Assay type Sandwich-ELISA
Format 96T/48T
Assay time 3.5h
Detection range 3.13-200 ng/mL
Sensitivity 1.88 ng/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human NTXⅠ in samples. No significant cross-reactivity or interference between Human NTXⅠ and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Human NTXⅠ concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human NTXⅠ. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human NTXⅠ and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human NTXⅠ, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human NTXⅠ. You can calculate the concentration of Human NTXⅠ in the samples by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
ItemSpecificationsStorage
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 6 months
Reference Standard 96T: 2 vials
48T: 1 vial
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Substrate Reagent 1 vial, 10 mL 2-8℃(Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Technical Data

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human NTXⅠ were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human NTXⅠ were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (ng/mL) 9.27 30.79 98.10 8.47 30.12 97.13
Standard deviation 0.54 1.35 3.18 0.43 1.50 2.93
CV (%) 5.83 4.38 3.24 5.08 4.98 3.02

Recovery

The recovery of Human NTXⅠ spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 86-98 91
EDTA plasma (n=8) 87-102 93
Cell culture media (n=8) 91-103 98

Linearity

Samples were spiked with high concentrations of Human NTXⅠ and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

SynonymsNTX-I, NTX1,NTX
Research AreaMetabolism, Cancer

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2021) IF: 5.924
    3D Environment Is Required In Vitro to Demonstrate Altered Bone Metabolism Characteristic for Type 2 Diabetics

    DOI: 10.3390/ijms22062925

    PMID: 33805833

    Sample: Cell culture supernatant(THP-1 cells)
  2. OSTEOARTHRITIS AND CARTILAGE (2017) IF: 4.742
    Associations between serum ghrelin and knee symptoms, joint structures and cartilage or bone biomarkers in patients with knee osteoarthritis

    DOI: 10.1016/j.joca.2017.05.015

    Sample: Serum
  3. CLINICAL RHEUMATOLOGY (2019) IF: 2.293
    Associations between serum IL-8 and knee symptoms, joint structures, and cartilage or bone biomarkers in patients with knee osteoarthritis

    DOI: 10.1007/s10067-019-04718-8

    PMID: 31377918

    Sample: Serum
  4. Bosnian Journal of Basic Medical Sciences (2018) IF: 1.432
    Evaluation of bone mineral density (BMD) and indicators of bone turnover in patients with hemophilia

    DOI: 10.17305/bjbms.2018.2335

    Sample: urine
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