Estradiol (E2) Elisa Kit

SKU Code LBRB-022U
Species Universal
Sensitivity 7.5 pg/mL
Detection Range 12.5-800 pg/mL
Size 96 T | 48 T
Price $ 365 | $ 265
SKU: LBRB-022U

Description

E2(Estradiol) ELISA Kit - Product Details
Alternative Names Oestradiol; E2; 17β-Estradiol; Estra-1,3,5(10)-triene-3,17β-diol
Uniprot ID N/A
Standard 800 pg/mL
Detection method Competitive
Sample type Serum, Plasma, Other biological fluids,Sample volume: 50μL
Reaction time 1.5H
Research Area Signaling transduction;Cancer;Metabolism
Test Principle
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with E2. Standards or samples are added to the appropriate micro ELISA plate wells then with a biotin-conjugated antibody specific to E2. Next,Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of E2 in the samples is then determined by comparing the OD of the samples to the standard curve.

Additional information

Sensitivity

7.5 pg/mL

Detection Range

12.5-800 pg/mL

Technical Data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.

(pg/mL) OD
800.00 0.185
400.00 0.345
200.00 0.624
100.00 0.968
50.00 1.385
25.00 1.648
12.50 1.825
0.00 2.061

Precision

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

Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean(pg/mL) 31.45 229.97 467.03 34.84 358.03 462.22
Standard deviation 1.21 13.76 24.99 1.70 15.39 34.57
C V (%) 5.17 6.47 2.65 4.50 3.22 4.77

Rate of Recovery

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

Sample Type Range(%) Avg Recovery(%)
Serum (n=8) 83-97 90
EDTA plasma (n=8) 80-97 88
Cell culture media (n=8) 85-101 93

Linear

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

Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2 Range (%) 85-94 85-102 89-98
Average (%) 88 95 95
1:4 Range (%) 87-96 85-102 80-97
Average (%) 89 87 93
1:8 Range (%) 92-105 80-92 96-104
Average (%) 99 81 99
1:16 Range (%) 89-102 87-103 85-93
Average (%) 99 95 93

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