17-OH Progesterone ELISA Kit
SKU: 8995644578

17-OH Progesterone ELISA Kit

Sale price$94.50 Regular price$105.00
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

17-OH Progesterone ELISA KitThe 17alpha OH Progesterone (17 OHP) ELISA kit is based on the principle of competitive binding between 17 OHP in the test specimen and 17 OHP HRP for a constant amount of Rabbit anti 17 OHP antibody. In the assay, goat anti rabbit IgG coated wells are incubated with 25uL 17 OHP standards, 50uL 17 OHP HRP conjugate, and 50uL rabbit anti 17 OHP. HRP labeled 17 OHP competes with 17OHP in the standards and sample for a fixed number of binding sites of

The 17alpha-OH Progesterone (17-OHP) ELISA kit is based on the principle of competitive binding between 17-OHP in the test specimen and 17-OHP-HRP for a constant amount of Rabbit anti-17-OHP antibody. In the assay, goat anti-rabbit IgG-coated wells are incubated with 25uL 17-OHP standards, 50uL 17-OHP-HRP conjugate, and 50uL rabbit anti-17-OHP. HRP-labeled-17-OHP competes with 17OHP in the standards and sample for a fixed number of binding sites of the specific anti-17-OHP antibody. Thus, the amount of 17-OHP peroxidase conjugate immunologically bound to the well progressively decreases as the concentration of 17-OHP in the specimen increases. Unbound 17-OHP is then removed by the washing steps. TMB Substrate is added, resulting in the development of blue color. The color development is stopped with the addition of stop solution, and the absorbance is spectrophotometrically measured at 450nm. A standard curve is prepared relating color intensity to the concentration of 17-OHP.

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SKU: 8995644578

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Lauren
Fort Morgan, US
★★★★★ 4
Not indestructible, but the best I’ve found
Color: Onyx Black - Most Durable, Color: Onyx Black - Most Durable
This thing is unexpectedly heavy for its size. My 18 month old Giant Schnauzer is obsessed with fetch but destroys every ball she gets. The other brands marketed for extreme chewers tend to last about a day or two before they’re totally shredded. She’s had this one for about 2 weeks and it’s looking rough, but still holding together for the most part. I appreciate that as it comes apart it does so in little pieces rather than large chunks. While it’s far from indestructible, it’s the strongest I’ve found so far.
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Reviewed in the United States on April 21, 2026
R
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Ryan
Port Orchard, US
★★★★★ 5
Great product!
Color: Onyx Black - Most Durable
Great product! Quickly became my Pit Princess's favorite toy! The size, weight, and material is perfect for a big dog. Now we have fetch ball that has proven itself to be worthy!
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Reviewed in the United States on May 8, 2026
B
Verified Purchase
Bill Jackson
Lake Worth, US
★★★★★ 3
good but not indestructible
Color: Onyx Black - Most Durable, Color: Onyx Black - Most Durable
pretty good but definitely not indestructible
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Reviewed in the United States on April 18, 2026
V
Verified Purchase
Verucat
Battle Creek, US
★★★★★ 5
Yes!
Size: Medium
Durable. Squeak doesn't last forever with my aggressive chewers but crinkle does. Best balls.
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Reviewed in the United States on September 28, 2025
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JJ Fording
Grantham, US
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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Reviewed in the United States on February 7, 2026

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