SKU: 18959559069

Multi-Species F-TESTO (Free Testosterone) ELISA Kit

Sale price$289.80 Regular price$322.00
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Multi-Species F-TESTO (Free Testosterone) ELISA KitWith about 15 known citations, the F TESTO (Free Testosterone) ELISA kit uses the Competitive ELISA principle. The micro ELISA plate provided in this kit has been pre coated with Universal F TESTO. During the reaction, Universal F TESTO in the sample or standard competes with a fixed amount of Universal F TESTO on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Universal F TESTO. Excess conjugate and unbound sample or

With about 15 known citations, the F-TESTO (Free Testosterone) ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Universal F-TESTO. During the reaction, Universal F-TESTO in the sample or standard competes with a fixed amount of Universal F-TESTO on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Universal F-TESTO. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Universal F-TESTO in tested samples can be calculated by comparing the OD of the samples to the standard curve.

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SKU: 18959559069

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marcial ciprian
Battle Creek, US
★★★★★ 5
Good shoes
Size: 7, Color: British Tan/Ivry, Size: 7, Color: British Tan/Ivry
Look very nice these shoes, speally to go out to dinner with the family, are really light weight, great quelith, and great softness
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Reviewed in the United States on April 8, 2026
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Orande Daring
Natrona Heights, US
★★★★★ 5
Nice Shoes
Size: 10.5, Color: British Tan/Ivry
Nice pair of shoes for my feet. Fits comfortably and nice cushion when walking. I would buy another pair.
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Reviewed in the United States on April 26, 2026
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MR. H.
Whiting, US
★★★★★ 5
Super comfortable!
Size: 9, Color: Navy Blazer/Ivor
Some of the most comfortable shoes that I've ever worn/walked in! Super light on my feet. Nice casual looking and comfortable shoe for a reasonable price. I already brought 3 pair.
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Reviewed in the United States on April 21, 2026
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deloris s.
Lowell, US
★★★★★ 5
Comfortable Shoes
Size: 12, Color: Navy Blazer/Ivor
This is the second time I purchased this style of shoes. They are extremely comfortable. They can be worn on casual and business events.
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Reviewed in the United States on May 25, 2026
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LindyB
Whiting, US
★★★★★ 5
Great dressy sneaker to wear with business casual or jeans
Size: 11, Color: British Tan/Ivry
I got these for my husband to wear with jeans or business casual dress pants. They look sharp and professional and dress up jeans if you're going out. He says they fit comfortably and he can walk on them all day without his feet hurting. They are beautiful genuine leather so they don't get stinky. I got my husband's normal size and they fit to size.
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Reviewed in the United States on February 11, 2026

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