SKU: 87189161904

Rat E2 (Estradiol) ELISA Kit

Sale price$204.75 Regular price$227.50
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

Rat E2 (Estradiol) ELISA KitThe Rat E2 (Estradiol) ELISA Kit measures E2 in Rat Serum, Plasma, Cell Culture Supernatant, Cell or Tissue Lysate. This kit is based on Competitive ELISA detection method and takes 2h assay time. The microplate provided in this kit has been precoated with E2. E2 in the sample or standard competes with a fixed amount of biotin labeled E2 for sites on a pre coated antibody specific to E2. Free components are washed off. After adding HRP Streptavidin

The Rat E2 (Estradiol) ELISA Kit measures E2 in Rat Serum, Plasma, Cell Culture Supernatant, Cell or Tissue Lysate. This kit is based on Competitive-ELISA detection method and takes 2h assay time. The microplate provided in this kit has been precoated with E2. E2 in the sample or standard competes with a fixed amount of biotin-labeled E2 for sites on a pre-coated antibody specific to E2. Free components are washed off. After adding HRP-Streptavidin Conjugate (SABC), biotin specifically binds with streptavidin to form immune complexes. Wash off unbound conjugate. Add TMB substrate solution. Then, TMB was catalyzed by HRP to produce a blue color product that turned yellow after adding a stop solution. Read the O.D. absorbance at 450nm in a microplate reader. Compare OD450 value of sample with the standard curve through curve fitting software to determine the concentration of E2 in the sample. The concentration of the target substance is inversely proportional to the OD450 value.

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SKU: 87189161904

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4.1 ★★★★★
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Amazon Customer
Belleville, US
★★★★★ 5
amazing.
Item Package Quantity: 4, Size: Queen
WOW. I was really skeptical, but the other reviews are spot on: these are amazing firm pillows. I really hope they don't lose their firmness and become lumpy like other pillows tend to do. Excellent pillows for the price!!
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Reviewed in the United States on June 7, 2026
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Moranda
Draper, US
★★★★★ 5
Great quality!! Great price
Item Package Quantity: 2, Size: Queen
Bought these for my mom and omg i like them better than the ones I got on Amazon theyre super comfy and they bounce back up they dont flatten and im definitely buying some next for me definitely worth the place great price and the make seems real good quality
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Reviewed in the United States on June 3, 2026
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Mack Mackenzie
Chelsea, US
★★★★★ 4
These are very thick pillows.
Item Package Quantity: 2, Size: Queen
Exactly as advertised. They are very firm and very thick. They're too thick for me to be able to use as bed pillows. However, they seem to work pretty well as cushions in my papasan chair on top of its normal cushion also work very well as decorative pillows. I'm still giving them four stars because they're exactly as advertised and they seem well made. My only complaint is that they're just too thick. And that's definitely not the fault of the pillows or the pillow maker.
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Reviewed in the United States on May 12, 2026
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Verified Purchase
Louis Cardoso
Cuba, US
★★★★★ 5
Comfortable pillows
Color: White, Size: Standard (Pack of 2)
These pillows are great. Not too soft or to hard. They need to be in the dryer for about 15 minutes to fluff up. Perfect buy!
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Reviewed in the United States on April 23, 2026
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Jana Caudill
Carnegie, US
★★★★★ 5
Don’t judge by the size
Color: White, Size: Standard (Pack of 2)
I don’t write reviews here typically but I’ve been on the pillow hunt for years with no luck. Mine are always lumpy and misshapen or too soft or too firm. Don’t judge this pillow by how it looks though because I saw it and thought for sure I wasted money. They are small and not fluffy at all. But OMG I laid down on it and it’s the most comfortable pillow I’ve had in years. Memory foam didn’t work for me but this simple little pillow just allowed me some great sleep. Very happy with this purchase. It’s a simple, no frills pillow that’s perfect for this side sleeper that doesn’t like a too soft pillow.
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Reviewed in the United States on April 11, 2026

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