SKU: 20555278611

EasyStep Human SAA (Serum Amyloid A) ELISA Kit

Sale price$343.80 Regular price$382.00
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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

EasyStep Human SAA (Serum Amyloid A) 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 SAA, and the Human SAA 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 SAA, and the Human SAA 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 SAA. After TMB substrate solution is added, only those wells that contain Human SAA 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 SAA in the samples is then determined by comparing the OD of the samples to the standard curve.

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SKU: 20555278611

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4.1 ★★★★★
Based on 23 reviews
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Verified Purchase
Laurie R
Fort Morgan, US
★★★★★ 5
THIS IS A MUST-BUY! If you have a dog--you NEED this ball!
Color: Orange
We have two 18-month-old chocolate Labs (brothers—basically twins with paws). The best time to walk them is early morning or just before dark… which is exactly how we managed to lose approximately 9,472 tennis balls in our cornfield. RIP, brave yellow soldiers. So I went searching for a ball that didn’t just glow—I wanted one that full-on lights up like a tiny dog disco. Enter this LED ball. Game. Changer. Our walks are now way more fun. The ball bounces, flashes, and changes colors like it’s auditioning for a rave. People literally slow their cars as they drive past our field just to watch the light show. I’m not saying we’re local celebrities now… but I’m not not saying that either. And here’s the real magic: when the boys get distracted and abandon the ball (because squirrel), it stays lit so I can actually find it. We also bought a ball launcher from Walmart for about $9, and the LED ball fits perfectly—same size as a tennis ball, just 100x cooler. This ball is waterproof and mostly floats, although I haven’t been brave enough to throw it into the pond or river because I’m positive my dogs would treat that as a full-scale navy search mission and never find it again. It’s easy to charge, and even with 2–3 hours of walking daily, I only have to plug it in every few weeks. We’ve had it for months now and it’s still going strong—super durable. We don’t let them chew on it off-walk (because Labs), but during fetch? It’s a champ. Also—small but hilarious detail—when they catch it, their mouths light up. I have accidentally created glow-in-the-dark dogs. I love this ball so much I’m buying a backup because life without it is not an option. Best dog toy EVER. Whoever invented this deserves a medal, a parade, and a lifelong supply of tennis balls they’ll never lose again. 🐾💡
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
K
Verified Purchase
Karen Roth
Waukegan, US
★★★★★ 1
DISAPPOINTED
Color: Blue
only lasted 3 months after about a dozen uses. The LED core fell out and now it's totally useless. Not worth the cost at all. Disappointed because my dogs really loved them.
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Reviewed in the United States on March 26, 2026
F
Verified Purchase
Flopsy Mopsy Not a Robot
Massapequa, US
★★★★★ 5
Dog is obsessed with this.
The spa works as intended it lights up at night, which is super helpful for short winter days and for when the snow starts to pile up, it illuminates the snow pile that dog dropped it in so I can find it. I haven’t actually charged it yet. It came fully charged and has been in use for over a week without needing a recharge. We only use it on outside excursions together. I keep it in my pocket on walks in case he needs something in his mouth or an incentive to run a little off leash. I like that there are two settings to the light which I didn’t notice when I ordered it. One will shut off after five minutes of inactivity to save battery, which is really convenient so I don’t have to keep on screwing it to turn it on and off or there’s a second setting where the light stays on until you manually turn it off. We have it on the battery saving mode and we have never lost it. Overall, a really fun toy that even the neighbors, tiny dog who can barely pick it up and enjoys. It’s not really soft for like chewing, but that also means he’s not going to destroy it. It is a heavy ball to throw, but not too bad. One of my favorite purchases for this puppy.
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Reviewed in the United States on January 19, 2025
T
Verified Purchase
troy a fennick
Waukegan, US
★★★★★ 3
Great while it lasted
Color: Blue, Color: Blue
This ball is great for my 13 year old low eyesight Boston terrier at night but after Less then a month of playing the inside of the ball falls out.
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Reviewed in the United States on May 20, 2026
R
Verified Purchase
Rita Neighbours
Grantham, US
★★★★★ 4
Make sure your dog isnt a chewed it wont last long
Color: Orange
These didnt last long.if your dog is a chewed i would not recommend. One our dogs ruined it fast.but these are fun toys for the dog.he chewed it and the battery part wouldn't stay in the ball. Our border california did just fine with it.he is not a chewed. Fun toy while it lasted.
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Reviewed in the United States on January 30, 2026

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