ELISA Kit for Erythropoietin (EPO)

EP; Epoetin; Erythropoetin; Hematopoietin; Hemopoietin


This assay has high sensitivity and excellent specificity for detection of Erythropoietin (EPO).
No significant cross-reactivity or interference between Erythropoietin (EPO) and analogues was observed.


Matrices listed below were spiked with certain level of recombinant Erythropoietin (EPO) and the recovery rates were calculated by comparing the measured value to the expected amount of Erythropoietin (EPO) in samples.

MatrixRecovery range (%)Average(%)
EDTA plasma(n=5)86-9591
heparin plasma(n=5)78-9886


Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Erythropoietin (EPO) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Erythropoietin (EPO) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%


The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Erythropoietin (EPO) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

EDTA plasma(n=5)80-89%93-101%80-97%85-93%
heparin plasma(n=5)78-103%88-95%83-91%91-105%


The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Pre-coated, ready to use 96-well strip plate1Plate sealer for 96 wells4
Standard2Standard Diluent1×20mL
Detection Reagent A1×120µLAssay Diluent A1×12mL
Detection Reagent B1×120µLAssay Diluent B1×12mL
TMB Substrate1×9mLStop Solution1×6mL
Wash Buffer (30 × concentrate)1×20mLInstruction manual1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C;
8. Add 50µL Stop Solution. Read at 450nm immediately.



PLOS ONECD98 Positive Eosinophils Contribute to T Helper 1 Pattern InflammationPlosOne: Source
The Journal of Clinical Endocrinology & MetabolismAlterations of Circulating Endothelial Cell and Endothelial Progenitor Cell Counts around the OvulationPubMed: 22948762
Nutrition. Carbohydrate and glutamine supplementation modulates the Th1/Th2 balance after exercise performed at a simulated altitude of 4500 m.Pubmed:2528040
J Appl Physiol (1985).Decreased plasma soluble erythropoietin receptor in high-altitude excessive erythrocytosis and Chronic Mountain SicknessPubmed:25324511
Expert Rev ProteomicsPlasma hepcidin in early-stage breast cancer patients: no relationship with interleukin-6, erythropoietin and erythroferronePubMed: 26496240
OncotargetKIAA0101 is associated with human renal cell carcinoma proliferation and migration induced by erythropoietinpubmed:26575329
international journal of molecular sciencesExpression of Iron-Related Proteins Differentiate Non-Cancerous and Cancerous Breast Tumors.pubmed:28216608
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