SKU: 7224925261

Human IgG4 (Immunoglobulin G4) ELISA Kit

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Description

Human IgG4 (Immunoglobulin G4) ELISA KitThe Human IgG4 (Immunoglobulin G4) ELISA kit uses the Competitive ELISA principle. The micro ELISA plate provided in this kit has been pre coated with Human IgG4. During the reaction, Human IgG4 in the sample or standard competes with a fixed amount of Human IgG4 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Human IgG4. Excess conjugate and unbound sample or standard are washed away, and Avidin Horseradish

The Human IgG4 (Immunoglobulin G4) ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Human IgG4. During the reaction, Human IgG4 in the sample or standard competes with a fixed amount of Human IgG4 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Human IgG4. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Human IgG4 in tested samples can be calculated by comparing the OD of the samples to the standard curve.

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SKU: 7224925261

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4.5 ★★★★★
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Timothy Listenbee
Charlottesville, US
★★★★★ 5
Nice product
Size: Large, Color: Black
Great fit and great material. Warm as well
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Reviewed in the United States on November 9, 2025
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Patrice Kimmerle
Pawtucket, US
★★★★★ 5
Good quality and fit. Lightweight sweater.
Great lightweight sweater. Quality fabric and good fit.
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Reviewed in the United States on December 29, 2025
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MJ
Whiting, US
★★★★★ 4
Boyfriend liked it, however it has a weird fit
I got this for my boyfriend as he is a fan of this brand's clothes. I got him small and I am glad I did. Although it looks fantastic on him because he is him, the sweater is strangely long and has a weird tough material to it. It is not exactly soft to the touch, and it has a weird stretch. It doesn't feel like other COOFANDY brand turtlenecks he owns, so I was surprised at how stiff the material was compared to those. The color is also a bit more orange in person.
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Reviewed in the United States on December 23, 2023
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Verified Purchase
R. C. J.
Cuba, US
★★★★★ 5
Ribbing & AComfortable Fit
I stumbled onto this brand as the sizes & sizing were very accurate. The ribbed feature is a blessing as it masks, hides, conceals stains & or body imperfections. I'm a 63 year old grandpa who greets outside in the Midwest at church 50 weeks a year. The warmth, the longer sleeve's and the high & roll up, roll down turtle neck is super cozy. The value is, it looks more expensive than it actually was, I have already ordered another in black. I am 5'8 298# with a 63 inch chest 48 inch waist fits with room to spare.
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Reviewed in the United States on January 23, 2024
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barbara carreno
Chelsea, US
★★★★★ 5
Good 👍
Muy bonito igual ala foto
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Reviewed in the United States on May 12, 2026

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