SKU: 91910240024

F-TESTO (Free Testoterone) ELISA Kit

Sale price$234.00 Regular price$260.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

F-TESTO (Free Testoterone) ELISA KitThe F TESTO (Free Testoterone) ELISA Kit measures F TESTO in Universal 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 F TESTO. F TESTO in the sample or standard competes with a fixed amount of biotin labeled F TESTO for sites on a pre coated antibody specific to F TESTO. Free components are

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

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SKU: 91910240024

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4.1 ★★★★★
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Justin Pone
Battle Creek, US
★★★★★ 5
3 days and already sprouting
Style: Zinnia Dahlia, Style: Zinnia Dahlia
I planted these seeds three days ago. They’ve had pure sun these last three days with water that I’ve given them and they’re already starting to sprout. I could not recommend these more if I tried.
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Reviewed in the United States on June 6, 2026
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Verified Purchase
josh
Massapequa, US
★★★★★ 4
Didn’t get a review on the garlic powder
Style: Zinnia Dahlia
The seeds were okay but the garlic powder that I ordered was smaller than usual is a case of bait and switch
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Reviewed in the United States on May 31, 2026
J
Verified Purchase
Jamie
Dallas, US
★★★★★ 5
Beautiful and vibrant blooms
Style: Zinnia Dahlia, Style: Zinnia Dahlia
This is the first time we planted Zinnias in our garden. Seemed so easy and worry free. It took 2.5 months from the time we planted the seeds to seeing the first blooms. It's now been about 3 months and the plants are in full bloom. The flowers came out in many vibrant colors! The seed packets contained a nice surprise since you don't know exactly what colors the flowers will be. Looks like it will continue blooming for a few more months with a little caring, like constant watering and deadheading. We definitely plan to capture the seeds so we can enjoy the flowers again.
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Reviewed in the United States on May 31, 2026
D
Verified Purchase
Dawn Abbott
Fort Morgan, US
★★★★★ 5
My favorite flower to grow!
Style: Zinnia Dahlia
I love my zinnia flowers!!! I had nearly 100% of these seeds sprout right up!!! (I plant a lot of seeds, and that's not very common)! I can't wait for these beauties to grow, so far they're looking healthy
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Reviewed in the United States on May 13, 2026
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Verified Purchase
Lillian DuBois
Birmingham, US
★★★★★ 5
Zinnia flower seeds are great
Style: Zinnia Dahlia
I love the seeds there sprouting so well we got some for me and my daughter to try out and we love them. We will be buying more seeds soon or we would love to test seeds out if you ever decide to choose us.
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Reviewed in the United States on May 19, 2026

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