SKU: 69110085806

EasyStep Rat E2 (Estradiol) ELISA Kit

Sale price$343.80 Regular price$382.00
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

EasyStep Rat E2 (Estradiol) ELISA KitThis assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre coated with Rat E2 antigen, and the Rat E2 standard plate wells that pre coated using protein related techniques are provided separately. Standard Sample Diluent Buffer or samples are added to the appropriate microtiter plate wells ,then added a HRP conjugated antibody specific to Rat E2 to each microplate well and

This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Rat E2 antigen, and the Rat E2 standard plate wells that pre-coated using protein-related techniques are provided separately. Standard/Sample Diluent Buffer or samples are added to the appropriate microtiter plate wells ,then added a HRP-conjugated antibody specific to Rat E2 to each microplate well and incubated . After TMB substrate solution is added, the enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ±10nm. The concentration of Rat E2 in the samples is then determined by comparing the OD of the samples to the standard curve.

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SKU: 69110085806

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4.4 ★★★★★
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A
Verified Purchase
allison
Lake Worth, US
★★★★★ 2
Not good value for money
I have ordered this before and as the picture shows it used to be a pack of two. I received my ball and now its just one ball for the same price. I will not order this product again.
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Reviewed in the United States on June 12, 2024
J
Verified Purchase
J
San Leandro, US
★★★★★ 4
Will buy again but softer ball preferred
At first Labradors weren’t into it, but I played with them positively reinforcing all touches and now my service dog LOVES the bigger one! It’s perfect between appointments to give her exercise. Will be looking for the same but with a softer ball. It’s a little too heavy and tough if it were to accidentally bounce off a body part besides their mouth catching it.
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Reviewed in the United States on October 19, 2022
S
Verified Purchase
Shelby Orlows
Draper, US
★★★★★ 5
My dog LOVES this tiny tug ball
Size: Medium(6")
A lot smaller than I was expecting.. BUT my dog doesn’t mind at all. She seriously loves this thing. It goes flat fairly quickly, but that’s what happens with all of her soccer balls, no matter the size. She’s a pitbul catahoula mix and has a strong bite. Considering my dogs chewing abilities, I’m fairly impressed by the durability of the ball, though she chewed through all but one of the rope handles in about 2 seconds. All that said, it’s one of her favorite toys(she’s 13 years old)
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Reviewed in the United States on April 21, 2026
B
Verified Purchase
blake r.
Birmingham, US
★★★★★ 5
10/10
Size: Medium(6")
My dog loves this ball. Durable and the straps seem to be strong too. Would highly recommend
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Reviewed in the United States on May 27, 2026
P
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Phyllis H. Schmidbauer
Louisville, US
★★★★★ 5
Durable!!
Size: Medium(6")
So well made for the active dog!! Colorful, durable and good quality!!
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Reviewed in the United States on April 26, 2026

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