SKU: 62440471

Human IFN-alpha21 ELISA Kit

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Description

Human IFN-alpha21 ELISA KitThe Human IFN alpha21 ELISA kit is a sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre coated with an antibody specific to Human IFNa21. Standards or samples are added to the appropriate microtiter plate wells then with a biotin conjugated antibody specific to Human IFNa21. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added,

The Human IFN-alpha21 ELISA kit is a sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Human IFNa21. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human IFNa21. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human IFNa21, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human IFNa21 in the samples is then determined by comparing the OD of the samples to the standard curve.

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SKU: 62440471

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★★★★★ 5
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I bought this ball 6 months ago and feel obligated to come back all these months later to say how great it is! My Frenchie has killed every toy he’s ever had but not this ball! He absolutely loves this ball. It’s lightweight and can be used for both indoor and outdoor play and still looks brand new.
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Reviewed in the United States on November 30, 2025
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Adam Holmes
Lexington, US
★★★★★ 1
good ball, wrong color
Size: Medium
I think the hot-ee roller is a great ball! My problem is that there is no option to select a color. I thought I was getting a purple one, since that is what is shown in the picture. As usual, I failed to read that it was assorted colors. I have a peculiar little dog that will only play with the purple one. His current purple one is in tatters. You could hardly even call it a ball at this point. We have red, blue and green and they are invisible to him.
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Reviewed in the United States on May 14, 2026
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Paula M.
Chelsea, US
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It calms down the itching
It help calm down the itching so I scratch much less !
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Reviewed in the United States on November 5, 2024
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MRA
Dallas, US
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Five Stars
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Ms Demeanor
Natrona Heights, US
★★★★★ 5
Great for dry, sensitive skin
Effective, not terribly greasy.
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Reviewed in the United States on October 16, 2019

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