48T
$299.00
96T
$399.00
Species:
Universal
Alternative Name:
RT3; r-T3; Reverse T3; (2S)-2-Amino-3-[4-(4-Hydroxy-3,5-Diiodophenoxy)-3-Iodophenyl]propanoic Acid; 3,3',5'-Triiodo-L-thyronine
Assay Type:
Competitive
unit:
pg/mL
Standard:
6000 pg/mL
Sensitivity:
27.55 pg/mL
Detection Range:
93.75-6000 pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma and Other biological fluids
Research:
Infection immunity;Endocrinology;Hormone metabolism;Autoimmunity;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with rT3. Standards or samples are added to the appropriate micro ELISA plate wells then with a biotin-conjugated antibody specific to rT3. 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 rT3 in the samples is then determined by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 6000 | 0.168 | |
| 3000 | 0.346 | |
| 1500 | 0.585 | |
| 750 | 0.83 | |
| 375 | 1.155 | |
| 187.5 | 1.514 | |
| 93.75 | 1.759 | |
| 0 | 2.519 |
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(ng/mL) | 118.11 | 252.1 | 1685.39 | 122.95 | 188.68 | 2097.9 |
| Standard deviation | 12.59 | 27.81 | 87.06 | 15.67 | 34.62 | 108.36 |
| C V (%) | 3.55 | 4.63 | 3.34 | 6.03 | 4.41 | 3.61 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 82-96 | 87 |
| EDTA plasma (n=8) | 86-97 | 92 |
| Cell culture media (n=8) | 84-103 | 96 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 88-97 | 85-104 | 82-90 |
| Average (%) | 96 | 88 | 85 | |
| 1:4 | Range (%) | 91-98 | 85-104 | 85-102 |
| Average (%) | 91 | 89 | 97 | |
| 1:8 | Range (%) | 86-103 | 87-106 | 80-92 |
| Average (%) | 93 | 94 | 87 | |
| 1:16 | Range (%) | 80-91 | 83-92 | 87-103 |
| Average (%) | 81 | 84 | 92 |