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Rat CTXⅠ(Cross Linked C-telopeptide of Type Ⅰ Collagen) ELISA Kit

  • Cat.No.:E-EL-R1456

  • Reactivity: Rat

To Purchase E-EL-R1456

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

Product Details


Assay type Sandwich-ELISA
Format 96T/48T
Assay time 3.5h
Detection range 0.16-10 ng/mL
Sensitivity 0.10 ng/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Rat CTXⅠ in samples. No significant cross-reactivity or interference between Rat CTXⅠ 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 Rat CTXⅠ 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 Rat CTXⅠ. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Rat CTXⅠ 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 Rat CTXⅠ, 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 Rat CTXⅠ. You can calculate the concentration of Rat CTXⅠ 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.
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


Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Rat CTXⅠ were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Rat CTXⅠ 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) 0.52 1.41 4.71 0.52 1.40 4.87
Standard deviation 0.03 0.08 0.15 0.03 0.08 0.17
CV (%) 5.77 5.67 3.18 5.77 5.71 3.49


The recovery of Rat CTXⅠ 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) 94-110 102
EDTA plasma (n=8) 92-109 99
Cell culture media (n=8) 92-106 98


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

Target Information

SynonymsCTX-I, CTX1, ICTP
Research AreaMetabolism, Cardiovascular, 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


From now on, if you have published a paper by using any of our products since 1/1/2019, fill out the “Elabscience Publication Reward Application Form”carefully and send it to, we will get back to you with the reward after we confirm it ASAP!

View more details about our Publication Reward >>

  1. Antioxidants (2019) IF: 5.014
    Protective Effects of Melon Extracts on Bone Strength, Mineralization, and Metabolism in Rats with Ovariectomy-Induced Osteoporosis

    DOI: 10.3390/antiox8080306

    PMID: 31416178

    Sample: Plasma
  2. Biomedicine & Pharmacotherapy (2020) IF: 4.545
    A prebiotic, short-chain fructo-oligosaccharides promotes peak bone mass and maintains bone mass in ovariectomized rats by an osteogenic mechanism

    DOI: 10.1016/j.biopha.2020.110448

    PMID: 32776872

    Sample: Serum
  3. Frontiers in Pharmacology (2017) IF: 4.4
    Adenosine Receptor Stimulation Improves Glucocorticoid-Induced Osteoporosis In A Rat Model.

    DOI: 10.3389/fphar.2017.00558

    PMID: 28928654

    Sample: Serum
  4. Calcified tissue international (2018) IF: 3.293
    Ficus deltoidea Prevented Bone Loss in Preclinical Osteoporosis/Osteoarthritis Model by Suppressing Inflammation.

    DOI: 10.1007/s00223-018-0433-1

    PMID: 29808374

    Sample: Serum
  5. Experimental and Therapeutic Medicine (2020) IF: 1.785
    Protocatechuic acid attenuates anterior cruciate ligament transection-induced osteoarthritis by suppressing osteoclastogenesis

    DOI: 10.3892/etm.2019.8189

    PMID: 31853294

    Sample: Tissue homogenate
  6. Bioelectromagnetics (2017) IF: 1.933
    Pulsed Electromagnetic Field At Different Stages Of Knee Osteoarthritis In Rats Induced By Low-Dose Monosodium Iodoacetate: Effect On Subchondral Trabecular Bone Microarchitecture And Cartilage Degradation.

    DOI: 10.1002/bem.22028

    PMID: 28026095

    Sample: Serum,Urine
  7. Current Developments in Nutrition (2020)
    Symbiotic Effects of Kefir and Yacon Flour (Smallanthus sonchifolius) on Bone Remodeling in Rats

    DOI: 10.1093/cdn/nzaa045_017

    Sample: Urine,Feces
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