Cross-reactivity observed with 1 or more available related molecules.< 50% cross-species reactivity observed with species tested.
No significant interference observed with available related molecules.
QC82, Quantikine Immunoassay Control Set 907 for Endothelin-1 - Please Inquire
The Quantikine Endothelin-1 immunoassay is a 4.5 hour solid phase ELISA designed to measure ET-1 in cell culture supernates, serum, plasma, and urine. It contains synthetic ET-1 and antibodies raised against synthetic ET-1. This immunoassay has been shown to accurately quantitate synthetic and naturally occurring ET-1.
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
The recovery of Endothelin-1 spiked to levels throughout the range of the assay in various matrices was evaluated.
Average % Recovery
Cell Culture Media (n=4)
Human EDTA Plasma (n=4)
Human Heparin Plasma (n=4)
Human Serum (n=4)
Mouse EDTA Plasma (n=4)
Mouse Serum (n=4)
Rat EDTA Plasma (n=4)
Rat Serum (n=4)
To assess the linearity of the assay, samples spiked with high concentrations of Endothelin-1 were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Preparation and Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Endothelin-1 (ET-1) is produced by many tissues including lung, kidney, brain, endocrine glands, and placenta. It is also expressed by several cell types including, mast cells, endothelial cells, epithelial and smooth muscle cells. The most prominent source is vascular endothelium. ET-1 is best known as a potent vasoconstrictor. Elevated blood ET-1 levels are associated with a variety of diseases, possibly as a function of a stress response.
Refer to the product for complete assay procedure.
Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
Prepare all reagents, standard dilutions, and samples as directed in the product insert.
Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.
150 µL Assay Diluent
Add 150 µL of Assay Diluent to each well.
75 µL Standard, Control, or Sample
Add 75 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 1 hour on a horizontal orbital microplate shaker.
Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.
200 µL Conjugate
Add 200 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 3 hours on the shaker.
Aspirate and wash 4 times.
200 µL Substrate Solution
Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes on the benchtop. PROTECT FROM LIGHT.
50 µL Stop Solution
Add 50 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.
Read what people are saying who have used Endothelin-1 Quantikine ELISA Kit.