SKU: 50060789712

Porcine T4 (Thyroxine) ELISA Kit

Sale price$234.00 Regular price$260.00
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Description

Porcine T4 (Thyroxine) ELISA KitThe Porcine T4 (Thyroxine) ELISA Kit measures T4 in Porcine 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 T4. T4 in the sample or standard competes with a fixed amount of biotin labeled T4 for sites on a pre coated antibody specific to T4. Free components are washed off. After adding HRP

The Porcine T4 (Thyroxine) ELISA Kit measures T4 in Porcine 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 T4. T4 in the sample or standard competes with a fixed amount of biotin-labeled T4 for sites on a pre-coated antibody specific to T4. 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 T4 in the sample. The concentration of the target substance is inversely proportional to the OD450 value.

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SKU: 50060789712

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4.7 ★★★★★
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Brian A. Clatterbuck
Boise, US
★★★★★ 5
Our Dogs Are Obsessed. The Squeak Is Intense.
Style: Large Ball, Size: 3 Count, Style: Large Ball, Size: 3 Count
BLUF: Our dogs absolutely love these — the squeak is loud enough that we sometimes have to take them away. --- Our dogs went crazy for these the moment we opened the pack. They’re durable, super bouncy, and easily became the new favorite toys in the house. The only thing to know is that the squeak is loud — like “I need to take this away for a minute” loud. But honestly, that’s probably why the dogs love them so much. Great value for a 3‑pack and perfect for pups who enjoy a good squeaky toy.
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Reviewed in the United States on April 16, 2026
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Verified Purchase
Dee97
Omaha, US
★★★★★ 5
A great toy for any dog!
Style: Small Ball, Size: 1 Count, Style: Small Ball, Size: 1 Count
The Hartz Duraplay ball is great! My 4 1/2 yr. old Pug has never liked playing with them before. He has gone crazy for this ball. He has no trouble grabbing it with is mouth. He ever gets it to squeak with his feet. I think it’s a great dog toy. Excellent!
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Reviewed in the United States on May 30, 2026
C
Verified Purchase
Cassie
West Palm Beach, US
★★★★★ 5
Great Value and very durable
Style: Small Ball, Size: 1 Count
Very durable! We have purchased this for our new lab puppy. Highly recommend them. We have bought them before for our retrievers and it has been one of the longest lasting toys they own. Which says a lot because toys get torn up fast in our house. Definitely a good value and the material is easy on their teeth. Also it keeps ours busy for a while.
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Reviewed in the United States on June 11, 2026
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Mckena Fox
Massapequa, US
★★★★★ 5
Aussie Approved
Size: Large, Color: Blue
I got a knock off one of these originally and man I should have just stuck with the real thing. My dog destroyed the other one in about 4 seconds. My dog loves this one and has not been able to tear it up, he prefers to just push it around after he gets all the treat out of it which is hilarious to watch. The quality is amazing and it is so easy to clean without leaving a smelly odor on it. It fits in my freezer perfectly and also is soft but firm so I do not have to worry about my dog hurting his teeth. For reference I have an Aussie and I got the large one which is perfect for his size (60lbs). My pet prefers this one over the last one for sure since this one actually keeps him entertained.
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Reviewed in the United States on June 13, 2026
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mpd_26
Cuba, US
★★★★★ 5
Awesome enrichment toy!
Size: Large, Color: Green, Size: Large, Color: Green
These are awesome! My dogs love them and keep them occupied for 30-60 mins so I can make and enjoy my coffee in peace before work. They are very easy to clean, but as others have mentioned, they can get stuck. I had to take a pliers to get one of them unscrewed. Hopefully that’s not a constant issue. I do wish they were more durable since there were a lot of teeth marks in them after the first use, so I upgraded to the black super chewer one. I’m happy I gave these a try and feel they are worth the money, especially for high energy dogs who get bored easily.
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Reviewed in the United States on June 4, 2026

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