Species:
Universal
Alternative Name:
TAC1;TAC2;NKNA
Assay Type:
Competitive
unit:
pg/mL
Standard:
5000 pg/mL
Sensitivity:
46.88 pg/mL
Detection Range:
78.13-5000 pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenates, Cell lysates, Cell culture supernates and Other biological fluids
Research:
Endocrinology;Neuro science;Hormone metabolism;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with SP. Standards or samples are added to the appropriate micro ELISA plate wells then with a biotin-conjugated antibody specific to SP. 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 SP in the samples is then determined by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 5000 | 0.185 | |
| 2500 | 0.323 | |
| 1250 | 0.542 | |
| 625 | 0.873 | |
| 312.5 | 1.294 | |
| 156.25 | 1.751 | |
| 78.13 | 2.06 | |
| 0 | 2.54 |
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) | 98.43 | 210.08 | 1404.49 | 102.46 | 157.23 | 1748.25 |
| Standard deviation | 10.49 | 23.18 | 72.55 | 13.05 | 28.85 | 90.3 |
| C V (%) | 6.83 | 7.59 | 3.13 | 3.38 | 4.33 | 4.3 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 80-92 | 86 |
| EDTA plasma (n=8) | 80-95 | 86 |
| Cell culture media (n=8) | 80-96 | 88 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 85-92 | 88-101 | 87-96 |
| Average (%) | 90 | 92 | 89 | |
| 1:4 | Range (%) | 89-96 | 85-93 | 92-105 |
| Average (%) | 91 | 86 | 97 | |
| 1:8 | Range (%) | 80-98 | 89-97 | 89-102 |
| Average (%) | 85 | 93 | 92 | |
| 1:16 | Range (%) | 81-92 | 85-94 | 92-101 |
| Average (%) | 85 | 90 | 94 |