SKU: 76030153273

EasyStep Human PSA (Prostate Specific Antigen) ELISA Kit

Sale price$267.75 Regular price$297.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

EasyStep Human PSA (Prostate Specific Antigen) ELISA KitEach EasyStep ELISA kit comes with two extra strips of coated wells to run for standard curves ensuring you have more wells for your samples. The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre coated with an antibody specific to Human PSA, and the Human PSA standard plate wells that pre coated using protein related techniques are provided separately. Standard Sample Diluent

Each EasyStep ELISA kit comes with two extra strips of coated wells to run for standard curves ensuring you have more wells for your samples. The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Human PSA, and the Human PSA standard plate wells that pre-coated using protein-related techniques are provided separately. Standard/Sample Diluent Buffer or samples are added to the appropriate microtiter plate wells ,then added a HRP-conjugated antibody specific to Human PSA. After TMB substrate solution is added, only those wells that contain Human PSA and HRP-conjugated antibody will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human PSA in the samples is then determined by comparing the OD of the samples to the standard curve.

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SKU: 76030153273

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4.6 ★★★★★
Based on 24 reviews
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kab
Chelsea, US
★★★★★ 4
Usually good, but not this time
Size: 1 lbs
The last bag was very hard but I am softening them up with “sugar bears”. When we first started getting them you could easily cut them & my girl loved them. Then we got a bag that molded within a couple weeks. I tried others but my girl didn’t like any as well as these. Eventually I came back to Dave’s & it was fine until this last bag & she wouldn’t eat them.
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Reviewed in the United States on April 7, 2026
J
Verified Purchase
Jeannie
Lowell, US
★★★★★ 5
Good value
Size: 1 lbs
A good value. The treats are a variety of sizes and my dog really likes them. They are fairly chewy so he doesn’t gobble them right down. I like that they are a healthy treat, since he can eat high fat or high sodium treats.
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Reviewed in the United States on April 13, 2026
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Zack & Savannah’s Mom
Lowell, US
★★★★★ 5
Such a all natural treat
Size: 1 lbs
My Shih Tuz loves these… he loves when we get a new bag lol- I save the big ones for the end and boy does he love the big slices - lol he loves to burry them around the house lol and when we are all Together at night he’s a happy boy chomping away … hands down such a great treat! We are on subscribe and save with these :)
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Reviewed in the United States on April 22, 2026
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Jamie B
Boise, US
★★★★★ 5
Durable , dogs love them !
Size: 2 Count (Pack of 1), Style: Pack of 2, Size: 2 Count (Pack of 1), Style: Pack of 2
These chuck it balls are a fan favorite of my own dogs and my foster pups . So much so I have sent my foster home with them when they go to their new families! I seriously need an endless supply !
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Reviewed in the United States on April 30, 2026
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Lexie
Lexington, US
★★★★★ 5
Whistles when thrown
Size: 2 Count (Pack of 1), Style: Pack of 2
One of my shepherd’s favorites! Truly does whistle when you throw it! Good quality!
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Reviewed in the United States on May 25, 2026

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