SKU: 44284559029

Human CR2/CD21 (Complement Receptor 2) ELISA Kit

Sale price$202.50 Regular price$225.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Human CR2/CD21 (Complement Receptor 2) ELISA KitThe Human CR2 CD21 (Complement Receptor 2) 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 CR2 CD21. 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 CR2 CD21 and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to

The Human CR2/CD21 (Complement Receptor 2) 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 CR2/CD21. 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 CR2/CD21 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 CR2/CD21, 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 CR2/CD21. You can calculate the concentration of Human CR2/CD21 in the samples by comparing the OD of the samples to the standard curve.

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SKU: 44284559029

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Jewel Rivera
Boise, US
★★★★★ 5
Everything about the paper towel holder is right on
Color: White
This paper towel holder is the right size it's very light weight, very ease to use, very is ease to remove the quality of this paper towel holder is great and it's very durable
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Reviewed in the United States on March 25, 2026
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Amazon Customer
Cuba, US
★★★★★ 5
I love it although the base is light & it may not stay in place during use.
Color: Black
Nice & well made with clean lines for the minimalist.
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Reviewed in the United States on February 24, 2026
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Looooooove them
Grantham, US
★★★★★ 5
Sturdy and clean look. Perfect gift
Color: Brushed Nickel
Perfect!!!!
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Reviewed in the United States on June 2, 2026
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Julian Mmerem
Waukegan, US
★★★★★ 5
It’s very functional.
Color: Brushe Gold, Color: Brushe Gold
Very sturdy! Classy too. Had this for a few months now and I love it. Easy to assemble. No color fading off. Very easy to use and just the perfect size.
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Reviewed in the United States on January 3, 2026
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Gene Evans
Lexington, US
★★★★★ 5
Exactly what I wanted!
Color: Brushe Gold
I love this paper towel holder! It was easy to assemble and looks beautiful in my newly remodeled kitchen.
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Reviewed in the United States on May 24, 2026

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