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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Roger C Burton
Grantham, US
★★★★★ 1
Go with tough rubber toys---you'll be ALOT happier!!!
This item isn't worth the thread used to make it. Only took my little puppy approx. 45 min. to gnaw the squeaker out!! The edging "tape" didn't last 1/2 that long. NOT good choice for tough teethers!!! I hand sewed damages---no help. For good toys---go with the KONG-type strength---REALLY TOUGH!!!
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Reviewed in the United States on May 16, 2026
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Kirsty Ansell
Cuba, US
★★★★★ 2
Disappointing
Not for aggressive chewers. It looked good but after a couple of hours the binding around the edge started coming undone and my terror twins have destroyed it
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Reviewed in the United States on June 5, 2026
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Lisa Basile
Natrona Heights, US
★★★★★ 5
Aggressive Chewer Approved!
I’ve tried so many dog toys that claim to be “tough,” and most of them don’t last more than a day in my house… but this one is the real deal.
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Reviewed in the United States on January 19, 2026
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Malieo
San Leandro, US
★★★★★ 4
Favorite toy but my dog chews too aggressively .
I took away 1 star because my dog tore a hole into this toy the 1st day, but even though that happened I am still happy with this toy. It was a great price and my dog LOVES this toy. He throws it all around and shakes it, "Octy" keeps him entertained for a good 45 mins , so I am still happy with the purchase .
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Reviewed in the United States on February 9, 2026
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Roll4Life
Bozeman, US
★★★★★ 1
Dangerous for dogs!
Not only is this not a tough toy since my puppy tore it apart in less than 2 months, she also swallowed the long red strings and filling. I had to pull it out of her back end. Any dog owner knows this is not safe, especially for my 5-month-old puppy. This is in no way a tough toy, and can be very dangerous for dogs.
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Reviewed in the United States on March 9, 2026

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