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Human GHRL(Ghrelin) ELISA Kit

  • Cat.No.:E-EL-H1919

  • Reactivity: Human

To Purchase E-EL-H1919

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

Product Details

Properties

Assay type Competitive-ELISA
Format 96T/48T
Assay time 2.0h
Detection range 0.16-10 ng/mL
Sensitivity 0.10 ng/mL
Sample type &Sample volume serum, plasma and other biological fluids; 50μL
Specificity This kit recognizes GHRL in samples. No significant cross-reactivity or interference between GHRL 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 GHRL concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with GHRL. During the reaction, GHRL in the sample or standard competes with a fixed amount of GHRL on the solid phase supporter for sites on the Biotinylated Detection Ab specific to GHRL. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of GHRL in tested samples can be calculated 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℃
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 GHRL were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level GHRL 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) 0.50 0.90 4.10 0.50 0.90 3.70
Standard deviation 0.03 0.04 0.13 0.03 0.04 0.13
CV (%) 6.00 4.44 3.17 6.00 4.44 3.51

Recovery

The recovery of GHRL 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) 86-97 92
EDTA plasma(n=8) 95-108 101
Cell culture media(n=8) 91-105 96

Linearity

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

Target Information

Database LinksSwissProt: Q9UBU3
SynonymsGHRL, MTLRP, Ghrelin

Assay Procedures

elisa assay procedure 1

1. Add 50μL standard or sample to the wells, immediately add 50μL Biotinylated Detection Ab working solution to each well. Incubate for 45 min at 37°C

elisa assay procedure 2

2. Aspirate and wash the plate for 3 times

elisa assay procedure 3

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

elisa assay procedure 4

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

elisa assay procedure 5

5. Add 50μL Stop Solution

elisa assay procedure 6

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

Citations

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 orders@elabscience.com, we will get back to you with the reward after we confirm it ASAP!

View more details about our Publication Reward >>

  1. 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

    PMID: 28602782

    Sample: Serum
  2. International journal of environmental research and public health (2019) IF: 2.849
    Effect of Sequence of Fruit Intake in a Meal on Satiety

    DOI: 10.3390/ijerph16224464

    PMID: 31766283

    Sample: Plasma
  3. BioMed Research International (2018) IF: 2.583
    High Ghrelin Level Predicts the Curve Progression of Adolescent Idiopathic Scoliosis Girls.

    DOI: 10.1155/2018/9784083

    PMID: 30079352

    Sample: Serum
  4. Psychiatry Research (2017) IF: 2.528
    The Association Of Serum Nesfatin-1 And Ghrelin Levels With Metabolic Syndrome In Schizophrenia Patients.

    DOI: 10.1016/j.psychres.2017.12.041

    PMID: 29278806

    Sample: Serum
  5. Food And Nutrition Sciences (2016) IF: 1.276
    Plasma Ghrelin, PYY And CCK Concentration Following Indonesian Fast Food And Western Fast Food In Obese Participant.

    DOI: 10.4236/fns.2016.79073

    Sample: Plasma
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