SKU: 22698755880

Human CYP21B (Cytochrome P450 21B) ELISA Kit

Sale price$202.50 Regular price$225.00
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Human CYP21B (Cytochrome P450 21B) ELISA KitThe Human CYP21B (Cytochrome P450 21B) ELISA immunoassay kit uses the Sandwich ELISA principle. The micro ELISA plate provided in this kit has been pre coated with an antibody specific to Human CYP21B. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human CYP21B and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to each

The Human CYP21B (Cytochrome P450 21B) ELISA immunoassay kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human CYP21B. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human CYP21B and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human CYP21B, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. 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 nm ± 2 nm. The OD value is proportional to the concentration of Human CYP21B. You can calculate the concentration of Human CYP21B in the samples by comparing the OD of the samples to the standard curve.

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SKU: 22698755880

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Melly G
Bozeman, US
★★★★★ 5
Chewy Charm 💚
Size: Large
Such an attractive design , and my Great Pyr Jack dug right into it. Keeping him happy . Nylabone is the best !
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Reviewed in the United States on December 10, 2025
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Ashley Mitchell
San Leandro, US
★★★★★ 5
Fantastic bone for my Lab!
Flavor Name: Bacon, Size: XL - 2 Pack
My chocolate lab loves these!! He is not an aggressive chewer, and so they last a while. I’ve bought them numerous times and keep them on hand. Love that it’s safe for them to digest. Bacon flavor is his favorite. They don’t stink at all (some other brands do), and they don’t make a mess. Fantastic bone for my boy :-)
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Reviewed in the United States on May 10, 2026
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E. Stone
Boise, US
★★★★★ 5
Fabulous Lasting Chew Bone
Flavor Name: Bacon, Size: Large - 3 Pack
I can no longer get the Deerhorns they loved, so I have been buying these. They are so excited when I open a new package and give it to them. They like all sizes. They place their feet on the handles and hold it, making it easier for them to chew on them. They are a little less expensive if I visit a local Walmart store. The problem is that they are often out or not stocked.
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Reviewed in the United States on May 20, 2026
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Amazon Customer
Lowell, US
★★★★★ 5
Good product
Flavor Name: Beef, Size: XL - 3 Pack, Flavor Name: Beef, Size: XL - 3 Pack
Our dog LOVES them but now they are only last 3 days for her.
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Reviewed in the United States on June 7, 2026
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Melanie DePietro
Bozeman, US
★★★★★ 4
my dog loves it, but is chewing small, jagged shreds off of it
Flavor Name: Bacon, Size: Large - 2 Pack
My dog loves this bone and he is able to easily hold it in his paws due to the shape. He is half bernedoodle and half bloodhound quite large 75 pounds and is a very aggressive chewer. My only concern is that he is biting off small pieces of what I believe is plastic since it’s the nylon one. I know he’s probably ingesting some of the pieces. Is this supposed to happen?
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Reviewed in the United States on July 23, 2025

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