SKU: 62440471

Human IFN-alpha21 ELISA Kit

$267.75 $297.50
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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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4.1 ★★★★★
Based on 1037 reviews
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huntinghawk
Louisville, US
★★★★★ 5
Great deal on a shacket
Color: Khaki, Size: X-Large
The shacket looks like it is depicted in pictures. It is oversized in general since it is intended to be an over garment. The weight of the cotton is heavier than a normal cotton shirt, but not as heavy as a denim jacket. I am 5'8" tall and 175 pounds. My sport coat chest measurement is 44 inches. I ordered XL so it would be large enough to cover a T shirt and shoulder holster for S&W Shield to CCW. I washed in cold and hung dried, and it still feels a little too large. I will try to wash and machine dry and see if the fit improved. The shacket looks to be worn with sleeves extended. I tried rolling up the sleeves and was only able to get two rolls. A third roll was not possible because it wouldn't fit around my forearms even though I'm not muscular. Those wanting to roll up their sleeves may need to alter the shacket. I was pleasantly surprised that the shacket did not have a chemical smell, which makes sense because it is 100% cotton. It instead smelled like cotton. After the first wash I didn't notice any imperfections. The buttons don't seem to be unraveling, and the other stitching looks to be holding. The shacket comes with one extra button. Overall, it looks like a nice shacket. Because it comes from China, I was expecting a stinky, plastic shirt notwithstanding the advertising. But no, it looks like it's all cotton, all quite clean and healthy. For the price, it looks like a great deal. Note that they can't fit all body types. If you're muscular with large arms and shoulders, I would expect the usual difficulty in finding a fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2025
B
Verified Purchase
brian
San Leandro, US
★★★★★ 4
Good quality, runs small through middle
Color: Nave Blue, Size: 3X-Large
Good looking shirt and much thicker and sturdier than I expected. Run small in gut though. I'm a 3X in everything but had to get 4X in this.
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Reviewed in the United States on January 24, 2026
N
Verified Purchase
Neil
Lexington, US
★★★★★ 5
Great overshirt, but heavier than you might expect.
Great fit. Good quality, heavy cotton. I bought it as a substitute for a light jacket… to maybe wear open with a t-shirt. It’s pretty heavy… almost like denim… which was what I wanted. But it’s heavier than what I would wear as a “shirt”. The price was great, so I’d buy it again since it comes in a variety of colors.
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Reviewed in the United States on July 21, 2025
P
Verified Purchase
Public Name
Whiting, US
★★★★★ 1
100% polyester is awful!
Color: Olive Green, Size: Large
As others have pointed out, this used to be 100% cotton and it was great. Sturdy and comfortable, nice worn-in look. Now it’s 100% polyester and it’s terrible. Feels cheap, looks cheap and shiny. Please bring back the cotton shirts.
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Reviewed in the United States on May 4, 2026
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Verified Purchase
TLV
Charlottesville, US
★★★★★ 3
Machine Washable but NOT Machine Dryable!
Seems well made and fits me well (6'2", 196 lb). I like the feel and color. However, contrary to lots of the reviews saying the shirt the received, mine was 100% Polyester. The instructions say machine washable. But upon receiving the item, its label says "do not tumble dry." I intended it for a two week+ cruise where washing it and quick drying will be essential. Drip drying would be very inconvenient.
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Reviewed in the United States on March 12, 2026

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