SKU: 82791204263

Rat PSA (Prostate Specific Antigen) ELISA Kit

$202.50 $225.00
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Description

Rat PSA (Prostate Specific Antigen) ELISA KitThe Rat PSA (Prostate Specific Antigen) ELISA immunoassay kit uses the Sandwich ELISA principle. The micro ELISA plate provided in this kit has been pre coated with an antibody specific to Rat PSA. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Rat PSA and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate

The Rat PSA (Prostate Specific Antigen) ELISA immunoassay kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Rat PSA. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Rat PSA and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Rat PSA, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Rat PSA. You can calculate the concentration of Rat PSA in the samples by comparing the OD of the samples to the standard curve.

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SKU: 82791204263

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4.5 ★★★★★
Based on 735 reviews
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Verified Purchase
JimSack
Battle Creek, US
★★★★★ 5
He loves them
Size: 20 x 4 x 4 in, Pattern Name: Eggplant, Size: 20 x 4 x 4 in, Pattern Name: Eggplant
Our Dog absolutely loves this little toy. Have a stock pile because, like all dog toys, they need replacing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
V
Verified Purchase
V. Locke
Carnegie, US
★★★★★ 5
Great dog toy
Size: One Size, Pattern Name: Corn
My dog loves this toy. It is sturdy and great squeaker.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025
A
Verified Purchase
ana
Lake Worth, US
★★★★★ 3
Cute but red fur does chew off 😜
Size: 20 x 4 x 4 in, Pattern Name: Pepper
My dog loves this hot pepper. It's our 2nd but the red fur does come off so don't leave your pet unattended with it for an extended amount of time.
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Reviewed in the United States on February 10, 2026
A
Verified Purchase
AmazonBob407
Waukegan, US
★★★★★ 5
This worm, pretty sure it’s a worm and not a snake, can take a lot of abuse.
Size: X-Large (Pack of 1), Color: Blue Snake, Size: X-Large (Pack of 1), Color: Blue Snake
Snake, worm, whatever, my dog doesn’t care, she loves it all the same. My little friend can be kinda rough with her toys. This is no exception. The pictures are from roughly one month of giving it to her and include playing with it at least every other day or so. The top is holding up well, but the bottom has taken some damage, and two of the squeakers have long since been destroyed. Despite this, my dog still loves playing with it. We normally play tug of war together, but on her own she chews at it to get to the squeakers inside, which she promptly destroys, which I’m totally fine with, as quiet toys are much preferred, by me, not her. I believe there are 4 in the XL size that we got. We’ve had a few of these in the past. We tend to get about 6 months out of them. After she “lovingly” removes the squeakers, she doesn’t chew on it much, and we just use it for tug of war, but at that point she’s done enough damage to the underside that its time is limited. But, as it’s pretty low priced, for the time and enjoyment we do get out of it, it’s very much worth it. I do need to clarify, the durability is actually quite good, I don’t fault the product as at all, it’s just my dog is equally as good with destruction, but it should be noted this toy does last much longer than most of her victims. The color, (we got the blue and green) is also very vivid and nice, as is the texture. We’ll be purchasing again.
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Reviewed in the United States on September 23, 2024
K
Verified Purchase
Katie Lee
Port Orchard, US
★★★★★ 5
Awesome toy!
Size: X-Large (Pack of 1), Color: Blue Snake
My pitbull Stella loves these! Ive bought her two of the smaller snake toys in the past and she Absolutly loves them! The first one lasted about 6 months which is a lifetime compared to how long her other toys last lol and the second one lasted about the same. This time I decided to get the XL version. It has 6 squeakers instead of 3 like the smaller versions. I picked the teal and purple colors and it's like 43 inches long I think. Its the same length as her and shes a large size dog. She loves this thing! Its so cute watching her squeak each of the squeakers with her nose. While this is a great toy it is not chew proof. In fact its quite easy for an experienced chewer to get into this toy. It is relatively strong but it wont stand a chance with a power chewer. Like I said this is the third one of these I have bought in roughly a year. They do last longer then more soft toys I will give them that. This is the only soft toy she has not destroyed in 5 mins. But after a week or so at least one squeaker will be missing. For the average dog one of these snake toys will last a really long time and they are fun to play with. We play tug of war and fetch with it. Stella also loves when I squeak the toy she will squeak it back and we'll go back and forth for hours lol. One last thing it is loud! If noisy toys bug you, don't get this. The sqeakers are industrial strength lol
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Reviewed in the United States on February 7, 2021

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