Testosterone ELISA
SKU: 33753813915

Testosterone ELISA

Sale price$291.15 Regular price$323.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Testosterone ELISAThe Testosterone ELISA measures Testosterone in samples. Add samples to the pre coated plate. Then add biotinylated antigen. The antigens in the samples compete with the biotinylated antigen to bind to the capture antibody and incubate. Unbound antigen is washed away during a washing step. An avidin HRP is then added and then incubate. Unbound avidin HRP is washed away during a washing step. TMB Substrate is then added and color develops. The reaction

The Testosterone ELISA measures Testosterone in samples. Add samples to the pre-coated plate. Then add biotinylated antigen. The antigens in the samples compete with the biotinylated antigen to bind to the capture antibody and incubate. Unbound antigen is washed away during a washing step. An avidin-HRP is then added and then incubate. Unbound avidin-HRP is washed away during a washing step. TMB Substrate is then added and color develops. The reaction is stopped by addition of acidic stop solution and color changes into yellow that can be measured at 450 nm. The intensity of the color developed is inversely proportional to the concentration of Testosterone in the sample. The concentration of Testosterone in the sample is then determined by comparing the O.D. of the samples to the standard curve.

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SKU: 33753813915

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Susan p
Lake Worth, US
★★★★★ 5
It’s great for the bathroom.
Color: Gold-aa
It’s great. I use it in all my bathrooms. It’s easy to change the paper. It fits on the tank and dresses it up.
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Reviewed in the United States on February 21, 2026
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Bernard C. Pattie
Natrona Heights, US
★★★★★ 5
Good Product, Fair Price
Color: Gold-aa
I bought this for my guest bathroom where I have some other brass items and it fits right in. Easy assembly with the supplied Allen wrench and bolt, and it comes with a cover for the bolt hole which perfectly matches the base padding material so the assembly point becomes invisible. It doesn’t have a ‘towel unroll preventer’ but I knew that when I evaluated the reasonable sale price and decided that wasn’t important for the intended use. The base is heavy and the assembled item seems very sturdy. I found it weird that this towel holder came with a plastic box containing a fork and a spoon as a ‘gift’ but this will go in my car camping cookware bag. I don’t know how the brass finish will hold up over time but for now I’m very pleased.
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Reviewed in the United States on November 17, 2025
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Rebecca Yant
Lake Worth, US
★★★★★ 5
Fantastic paper towel holder!
Color: Sliver
Very sturdy, with a weighted bottom & it holds larger rolls. I put select-a-size triplet rolls on mine. It’s a nice looking one too. Compliments a stainless kitchen nicely.
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Reviewed in the United States on October 10, 2025
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Stella Ketchum
Omaha, US
★★★★★ 5
Paper towel holder
Color: Gold-aa
A very nice product which matched my fixtures perfectly. It was well packaged and easy to assemble. Excellent value for the price.
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Reviewed in the United States on May 25, 2026
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deana
Belleville, US
★★★★★ 5
Beautiful gold finish
Color: Gold-aa
Perfect gold finish for our new condo kitchen.
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Reviewed in the United States on February 14, 2026

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