SKU: 4946724142

Human CD21 (Complement Receptor 2) ELISA Kit

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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10

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Description

Human CD21 (Complement Receptor 2) ELISA KitThe Human CD21 (Complement Receptor 2) ELISA Kit measures CD21 in Human Serum, Plasma, Cell Culture Supernatant, Cell or Tissue Lysate. This kit is based on Double antibody Sandwich ELISA detection method and takes 4h assay time. The microplate provided in this kit has been precoated with anti CD21 antibody. Add standard and properly diluted sample into relevant well respectively. After incubation, wash unbound components. Add biotinylated detection

The Human CD21 (Complement Receptor 2) ELISA Kit measures CD21 in Human Serum, Plasma, Cell Culture Supernatant, Cell or Tissue Lysate. This kit is based on Double antibody-Sandwich ELISA detection method and takes 4h assay time. The microplate provided in this kit has been precoated with anti CD21 antibody. Add standard and properly diluted sample into relevant well respectively. After incubation, wash unbound components. Add biotinylated detection antibody. Then, it binds with CD21 bound to precoated antibody. Wash unbound components and add HRP-Streptavidin Conjugate (SABC). Wash unbound components again and add TMB substrate solution. Then, TMB was catalyzed by HRP to produce a blue color product that turned yellow after adding a stop solution. Read the O.D. absorbance at 450nm in a microplate reader. Calculate the concentration of CD21 in the sample by plotting standard curve. The concentration of the target substance is proportional to the OD450 value.

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SKU: 4946724142

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Stephanie Robnett
Alexandria, US
★★★★★ 5
The best
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
The best no show socks I have found. Stay in place very well and hold up wash after wash. I have tossed all the other brands I’ve bought over the years and stocked up on these as I was tired of digging through the drawer hoping to find a clean pair.
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Reviewed in the United States on December 8, 2024
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Ginni
Whiting, US
★★★★★ 5
Love these.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I have them in black and white. I use them everyday in all shoes. These are very versatile and a great quality material. They take a looong time to wear and they stay in place. Very washable and good material. They are not too thick and they do not shrink. I do air dry mine. They do not hold smells even in the summer heat.
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Reviewed in the United States on July 7, 2024
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Maria White
Lexington, US
★★★★★ 5
Perfect!
Number of Items: 3, Color: Pink Quartz Assorted (3-pairs), Size: Medium
My new favorite socks! True to size, fit perfectly, and the best part is they do not slide off your foot! 10/10 recommend!
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Reviewed in the United States on July 10, 2025
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GPB
Massapequa, US
★★★★★ 5
Nice room divider!
Color: Black
Looks great and has held up well so far (but we've been very careful with it). Not too heavy to move around when needed
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Reviewed in the United States on March 5, 2026
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Rose Wildwood
Alexandria, US
★★★★★ 5
Beautiful!
Color: Black, Color: Black
I share a very small apartment with my daughter so my bed is in the living area. This screen not only gives me privacy, but also makes me feel like I sleep in a Japanese lantern! At night with the bedside lamp on it glows beautifully! It’s fairly lightweight and came fully assembled.
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Reviewed in the United States on March 22, 2026

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