SKU: 66778243395

QuicKey Pro Human Estradiol ELISA Kit

Sale price$304.20 Regular price$338.00
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

QuicKey Pro Human Estradiol ELISA KitThe QuicKey Pro Human Estradiol ELISA kit uses the Competitive ELISA principle. The micro ELISA plate provided in this kit has been pre coated with Human E2. Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for Human E2 are added to the micro ELISA plate wells. Human E2 in samples (or standards) competes with a fixed amount of E2 on the solid phase supporter for sites on the HRP linked detection antibody specific to E2.

The QuicKey Pro Human Estradiol ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Human E2. Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for Human E2 are added to the micro ELISA plate wells. Human E2 in samples (or standards) competes with a fixed amount of E2 on the solid phase supporter for sites on the HRP linked detection antibody specific to E2. Excess conjugate and unbound sample or standard are washed from the plate. The substrate solution is added to each well. 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 ±2 nm. The concentration of Human E2 in the samples is then determined by comparing the OD of the samples to the standard curve.

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Exchange/Return Notes
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SKU: 66778243395

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4.2 ★★★★★
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Jay Nan
Natrona Heights, US
★★★★★ 5
Literally a ball of fun!!
We have a multipoo and he is only about 14 pounds and let me tell.you he absolutely loves his new toy. It was so easy and quick to charge. Very rugged and chew resistant which is a must! Easy to grip and fun while on or off. It hops with a buzzing sound which keeps his attention. Very happy with this purchase!
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Reviewed in the United States on March 2, 2026
J
Verified Purchase
jaelyn S smith
Boise, US
★★★★★ 5
Love this
This toy is the best dog toy ever! Keeps our 3 year old 50 pound girl very happy and busy and it's a very, very durable toy!
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Reviewed in the United States on April 19, 2026
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Verified Purchase
Lauren
Lowell, US
★★★★★ 4
Quiet/lightweight and good quality option toy
Lightweight and good quality foam outer shell that helps keep noise level down compared to other similar interactive toys. My herding rescue pup absolutely loves this and keeps him busy and mentally stimulated for 15-30 minutes at a time. I only docked a star because the shell replacements are so pricey; if you have an aggressive chewer, getting a silicone cage cover or sock might be helpful.
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Reviewed in the United States on December 22, 2025
W
Verified Purchase
w
Houston, US
★★★★★ 5
My dog loves it
Color: Blue
My miniature schnauzer loves it keeps him going for hours in like the fact I can open it and take the electric part out to charge it wile my dog can still play with the ball it only lasts for 45min before it has to be charged best ball I have bought in a wile my dog loves it
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Reviewed in the United States on May 10, 2026
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Verified Purchase
Steven Brown
Bozeman, US
★★★★★ 4
The dog loves it!
Color: Blue
Our dog can't get enough of this toy but the charge doesn't last too long but would buy again.
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Reviewed in the United States on June 3, 2026

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