SKU: 15032901866

Human C4 (Complement Component 4) ELISA Kit

Sale price$202.50 Regular price$225.00
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Human C4 (Complement Component 4) ELISA KitThe Human C4 (Complement Component 4) 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 C4. 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 C4 and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate

The Human C4 (Complement Component 4) 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 C4. 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 C4 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 C4, 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 C4. You can calculate the concentration of Human C4 in the samples by comparing the OD of the samples to the standard curve.

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SKU: 15032901866

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lynne slater
Natrona Heights, US
★★★★★ 5
Simply a very good watch and well worth the price
Color: blue watch for men
It's a very nice watch especially considering the price. Looks outstanding and seems to work perfectly.
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Reviewed in the United States on May 4, 2026
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Stephen Rimmer
Charlottesville, US
★★★★★ 5
Nice watch
Color: blue watch for men
It’s a very nice watch. I usually wear a cheap watch and I don’t care if it gets scratched it also has the day and the time and the stopwatch feature but this watch is really beautiful and it looks very nice. The one thing I would recommend is that when you’re setting the watch, there are two ways to set the watch one is to pull the button out very slightly and that will set the day and the time the other is to pull the watch button out to two clicks, and that will set the actual hands. But I’d like my watch. It’s the nicest watch I’ve ever owned.
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Reviewed in the United States on April 25, 2026
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Edelaine Metelus
Dallas, US
★★★★★ 5
Easy to use 🥰🥰
Color: all black watch mens, Color: all black watch mens
“I love this OLEVS watch! It looks stylish, feels comfortable, and offers great quality for the price. Highly recommended!” ⌚✨
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Reviewed in the United States on May 29, 2026
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Verified Purchase
Lenin Goud
Birmingham, US
★★★★★ 4
Stylish and eye-catching watch with great value
Color: blue watch for men
This watch looks much more premium than its price suggests. The blue dial combined with the two-tone stainless steel gives it a clean and elegant appearance, making it suitable for both formal and casual wear. The diamond accents add a nice touch without feeling overdone. The quartz movement keeps accurate time, and the date feature is convenient for daily use. The luminous hands are helpful in low-light conditions as well. The build quality feels solid, though the band may need adjustment for a perfect fit. Water resistance is fine for everyday situations like hand washing, but I wouldn’t rely on it for heavy water exposure. Overall, a good-looking and functional watch that offers excellent value for the price.
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Reviewed in the United States on April 6, 2026
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Carlos A Freitas
West Palm Beach, US
★★★★★ 5
Timeless precision
Color: silver watch for men, Color: silver watch for men
The watch combines a sleek design with practical functionality it’s chrome still casing feels durable, and the strap is comfortable for all day wear the dial is clear and easy to read with luminous hands that work well in low light the battery life is impressive and the timekeeping is accurate it excels as a reliable every day watch with a stylish look
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Reviewed in the United States on April 23, 2026

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