EasyPro Series ELISA Kits

EasyPro Universal 25-Hydroxyvitamin D3(HVD3)ELISA Kit

Product No

FY-EU10127S

Sample Type

serum, plasma and other biological fluids

Assay Time

45min

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Product Details
Product Name in English:
EasyPro Universal 25-Hydroxyvitamin D3(HVD3)ELISA Kit
Species:
Universal
Alternative Name:
25-HVD3; 25HVD3; Calcifediol; Calcidiol; H-VD3; 25-Hydroxycholecalciferol; 25-Hydroxy Vitamin D3; 25(OH)D
Assay Type:
Competitive
Standard:
200ng/mL
Sensitivity:
0.91 ng/mL
Detection Range:
3.13-200 ng/mL
Assay Time:
45min
Sample Type:
serum, plasma and other biological fluids
Research:
Reproductive science;Genetic science;Nutrition metabolism;Bone metabolism;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with HVD3 Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for HVD3 are added to the micro ELISA plate wells. HVD3 in samples (or standards) competes with a fixed amount of HVD3 on the solid phase supporter for sites on the HRP linked detection antibody specific to HVD3. Excess conjugate and unbound sample or standard are washed from the plate. The substrate solution is added to each well. 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±2 nm. The concentration of HVD3 in the samples is then determined by comparing the OD of the samples to the standard curve.
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.
Concentration OD1 OD2 Average OD Corrected
200 0.188 0.19 0.189
100 0.324 0.324 0.324
50 0.539 0.545 0.542
25 0.873 0.874 0.874
12.5 1.301 1.313 1.307
6.25 1.693 1.727 1.71
3.13 2.069 2.078 2.074
0 2.509 2.54 2.525
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.
Item Intra-assay Precision Intra-assay Precision
Sample 3 3
Replicate 9 18
CV(%) 5 8
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(%) Average Recovery(%)
Serum (n=8) 80-92 86
EDTA plasma (n=8) 90-105 97
Cell culture media (n=8) 88-102 95
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 (%) 86-98 83-94 86-97
Average (%) 92 91 94
1:4 Range (%) 91-103 83-94 83-96
Average (%) 98 86 92
1:8 Range (%) 85-97 85-96 81-94
Average (%) 88 94 84
1:16 Range (%) 87-96 92-103 86-98
Average (%) 91 100 95
Assay Procedures
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