Click here to view cell apoptosis assay products

Human Aβ1-42(Amyloid Beta 1-42) ELISA Kit

  • Cat.No.:E-EL-H0543

  • Reactivity: Human

To Purchase E-EL-H0543

  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $495

Product Details


Assay type Sandwich-ELISA
Format 96T/48T
Assay time 3.5h
Detection range 15.63-1000 pg/mL
Sensitivity 9.38 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human Aβ1-42 in samples. No significant cross-reactivity or interference between Human Aβ1-42 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 Aβ1-42 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 Aβ1-42. 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 Aβ1-42 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 Aβ1-42, 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 Aβ1-42. You can calculate the concentration of Human Aβ1-42 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 Human Aβ1-42 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human Aβ1-42 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 (pg/mL) 49.20 91.80 423.30 46.70 85.70 451.40
Standard deviation 2.80 4.80 21.20 2.90 4.40 14.90
CV (%) 5.69 5.23 5.01 6.21 5.13 3.30


The recovery of Human Aβ1-42 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) 88-102 93
EDTA plasma (n=8) 90-103 95
Cell culture media (n=8) 85-99 91


Samples were spiked with high concentrations of Human Aβ1-42 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt:   P05067
SynonymsAβ(1-42) ,Amyloid Beta 42,Amyloid Beta 42
Research AreaCancer, Neuroscience

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. Cell Stem Cell (2020) IF: 20.86
    Interneuron Accumulation of Phosphorylated Tau Impairs Adult Hippocampal Neurogenesis by Suppressing GABAergic Transmission

    DOI: 10.1016/j.stem.2019.12.015

    PMID: 31978364

    Sample: Cell culture supernatant
  2. Autophagy (2019) IF: 11.1
    Activation of PPARA-mediated autophagy reduces Alzheimer disease-like pathology and cognitive decline in a murine model

    DOI: 10.1080/15548627.2019.1596488

    PMID: 30898012

    Sample: Tissue homogenate,Cell culture supernatant,Cell ly
  3. Journal of Clinical Periodontology (2020) IF: 5.241
    Periodontitis and systemic markers of neurodegeneration: A case-control study

    DOI: 10.1111/jcpe.13267

    PMID: 32027386

    Sample: Serum
  4. Translational Neurodegeneration (2019) IF: 5.872
    Enriched Gestation Activates the IGF Pathway to Evoke Embryo-Adult Benefits to Prevent Alzheimer's Disease

    DOI: 10.1186/s40035-019-0149-9

    PMID: 30867903

    Sample: Tissue homogenate
  5. Pediatrics (2015) IF: 5.705
    Biomarkers Of Alzheimer Disease, Insulin Resistance, And Obesity In Childhood.

    DOI: 10.1542/peds.2014-2391

    PMID: 25963004

    Sample: Serum
  6. Frontiers in aging neuroscience (2020) IF: 4.362
    Blood-Based Biomarkers for Predictive Diagnosis of Cognitive Impairment in a Pakistani Population

    DOI: 10.3389/fnagi.2020.00223

    PMID: 32848704

    Sample: Serum
  7. Scientific Reports (2020) IF: 3.998
    Comparative Effects of Alpha- and Gamma-Tocopherol on Mitochondrial Functions in Alzheimer's Disease In Vitro Model

    DOI: 10.1038/s41598-020-65570-4

    PMID: 32488024

    Sample: Cell culture medium
  8. Journal of periodontology (2018) IF: 3.392
    Periodontitis is associated with systemic inflammation and vascular endothelial dysfunction in patients with lacunar infarct

    DOI: 10.1002/JPER.18-0560

    PMID: 30417380

    Sample: Serum
  9. Neurochemical research (2019) IF: 2.772
    Resveratrol Abrogates Hypoxia-Induced Up-Regulation of Exosomal Amyloid-β Partially by Inhibiting CD147

    DOI: 10.1007/s11064-019-02742-3

    PMID: 30771155

    Sample: Tissue homogenate,Cell culture medium
  10. Applied Biochemistry and Biotechnology (2017) IF: 1.751
    Evaluation Of The Expression Of Amyloid Precursor Protein And The Ratio Of Secreted Amyloid Beta 42 To Amyloid Beta 40 In SH-SY5Y Cells Stably Transfected With Wild-Type, Single-Mutant And Double-Mutant Forms Of The APP Gene For The Study Of Alzheimer’S D

    DOI: 10.1007/s12010-017-2468-6

    PMID: 28417423

    Sample: Cell culture supernatant
  11. Alzheimer‘s & Dementia (2019)
    CDT2-controlled Cell Cycle Reentry Regulates the Pathogenesis of Alzheimer's Disease

    DOI: 10.1016/j.jalz.2018.08.013

    PMID: 30321504

    Sample: Cell culture medium
Show AllShorten


  • Show all
  • Reviews
  • Q&A
... Show All Show Less

People Also Bought

Apply for Free Shipping 24T ELISA Kit
*Product Name:
*Catalog Number:
*When will you use it?