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LTB4(Leukotriene B4) ELISA Kit

  • Cat.No.:E-EL-0061

  • Reactivity: Universal

To Purchase E-EL-0061

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

Product Details


Assay type Competitive-ELISA
Format 96T/48T
Assay time 2.0h
Detection range 15.63-1000 pg/mL
Sensitivity 9.38 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 50μL
Specificity This kit recognizes LTB4 in samples. No significant cross-reactivity or interference between LTB4 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 LTB4 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 LTB4. During the reaction, LTB4 in the sample or standard competes with a fixed amount of LTB4 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to LTB4. 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 LTB4 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.
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


Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level LTB4 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level LTB4 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) 54.30 119.20 336.50 50.40 116.60 318.60
Standard deviation 3.50 5.00 18.20 2.80 4.80 15.30
CV (%) 6.45 4.19 5.41 5.56 4.12 4.80


The recovery of LTB4 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) 89-105 96
EDTA plasma(n=8) 86-98 91
Cell culture media(n=8) 93-106 100


Samples were spiked with high concentrations of LTB4 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

SynonymsLeukotriene B4
Research AreaCell Biology

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


  1. Journal of Cachexia Sarcopenia and Muscle (2022) IF: 12.91
    A disease-associated missense mutation in CYP4F3 affects the metabolism of leukotriene B4 via disruption of electron transfer

    DOI: 10.1002/jcsm.13022

    PMID: 35686338

    Sample: plasma
  2. Frontiers in Cell and Developmental Biology (2021) IF: 6.684
    Emodin Prevented Depression in Chronic Unpredicted Mild Stress-Exposed Rats by Targeting miR-139-5p/5-Lipoxygenase

    DOI: 10.3389/fcell.2021.696619

    PMID: 34381778

    Sample: hippocampal
    Zileuton, a 5-Lipoxygenase Inhibitor, Attenuates Haemolysate-Induced BV-2 Cell Activation by Suppressing the MyD88/NF-κB Pathway

    DOI: 10.3390/ijms23094910

    Sample: BV-2 cell
  4. Journal of Traditional and Complementary Medicine (2021) IF: 4.221
    Extract, fractions, and ethyl-p-methoxycinnamate isolate from Kaempferia galanga Elicit anti-inflammatory activity by limiting leukotriene B4 (LTB4) production

    DOI: 10.1016/j.jtcme.2021.06.004

    Sample: pouch
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