SKU: 3321293361

Human ETRB (Endothelin Receptor B) ELISA Kit

Sale price$292.05 Regular price$324.50
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Description

Human ETRB (Endothelin Receptor B) ELISA KitThe Human ETRB (Endothelin Receptor B) 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 ETRB. 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 ETRB and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to each micro

The Human ETRB (Endothelin Receptor B) 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 ETRB. 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 ETRB 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 ETRB, 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 ETRB. You can calculate the concentration of Human ETRB in the samples by comparing the OD of the samples to the standard curve.

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SKU: 3321293361

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4.2 ★★★★★
Based on 699 reviews
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Aryiea
West Palm Beach, US
★★★★★ 5
Good air purifier - make sure you actually unwrap the filter lol
Style: Medium Room Air Purifier
I'm an idiot and didn't realize the filter that comes already inside it was in there wrapped in plastic for some reason that surpasses my understanding (the whole unit was already wrapped in plastic, why is the filter, which is inside the plastic-wrapped unit, also wrapped in its own separate plastic?? As if we need more plastic in the world...). Anyway, I didn't look inside cuz I thought the filter would just be installed in there and I plugged it in and cheerfully ran it for months til it told me it was time for replace the filter then bought a second filter and went tk take my old one out only to realize I hadn't been filtering anything all that time 😅 oops. Lol. So yeah, make sure you unwrap the filter. Otherwise it's a good little air purifier. Now that the filter is actually installed right, I notice it kicks up higher when we cook or do anything that would lower air quality, so it does seem to be detecting that properly! My allergies do seem better overall. It's pretty quiet when it's on low, but does get loud when it kicks up. I'm OK with that since it pretty much only happens when we cook or if I just put out a candle or something.
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Reviewed in the United States on May 3, 2026
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Verified Purchase
Mike
West Palm Beach, US
★★★★★ 4
Air Purifier
Style: Medium Room Air Purifier
Works well small and compact so it can fit in more areas.
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Reviewed in the United States on April 6, 2026
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Verified Purchase
Andrea
Lexington, US
★★★★★ 1
Not worth it
Style: Medium Room Air Purifier
Disappointed in this air purifier. Doesn't seem to keep the air clean. Air filter needs to be replaced more often than other air purifiers. Unfortunately I can't return this product. Would not recommend this. Buy a Levoit air purifier instead. Works much better and filter doesn't need to be replaced as often.
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Reviewed in the United States on February 18, 2026
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Verified Purchase
Jack
Natrona Heights, US
★★★★★ 5
Excellent Performance and Very Easy to Change Filter
Style: Medium Room Air Purifier
Very happy with this air purifier! It works really well and you can actually feel the air getting cleaner after running it for a while. It’s quiet, simple to use, and perfect for a medium-sized room. What I especially love is how easy it is to replace the filter. No complicated steps — just open, swap, and done in minutes. Super convenient and stress-free. For the price, the quality is surprisingly good. Definitely worth it, and I would buy again.
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Reviewed in the United States on March 1, 2026
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Nobu
Draper, US
★★★★★ 5
great solid product for the price, easy to use
Style: Medium Room Air Purifier
Bought for a family member to put in his room & it’s been super easy to set up and use. Helps noticeably freshen up the room and keep it smelling better too
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Reviewed in the United States on April 30, 2026

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