Guinea pig CR2/CD21 (Complement Receptor 2) ELISA Kit
SKU: 89846898948

Guinea pig CR2/CD21 (Complement Receptor 2) ELISA Kit

Sale price$202.50 Regular price$225.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Guinea pig CR2/CD21 (Complement Receptor 2) ELISA KitThe Guinea pig CR2 CD21 (Complement Receptor 2) 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 Guinea pig CR2 CD21. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Guinea pig CR2 CD21 and Avidin Horseradish Peroxidase (HRP) conjugate are added

The Guinea pig CR2/CD21 (Complement Receptor 2) 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 Guinea pig CR2/CD21. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Guinea pig CR2/CD21 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 Guinea pig CR2/CD21, 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 Guinea pig CR2/CD21. You can calculate the concentration of Guinea pig CR2/CD21 in the samples by comparing the OD of the samples to the standard curve.

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Exchange/Return Notes
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SKU: 89846898948

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Pittieluv79
Massapequa, US
★★★★★ 3
The rubber middle is not durable, it lasted less than 3 hours.
Color: 1 PC-Beef-Red
I bought this as I have bully/husky puppies (9 months old) and a pitt/doberman (9 years old). They are heavy chewers and destroy everything. I saw a video of this toy. The woman said that her dog chewed on it for a while (about 2 hours or so) she showed the ends visibly chewed, which I expect but it was holding up. The rubber middle seemed to hold up to. I received this yesterday. I had to take it away from them last night as they were chewing the rubber middle off. They had it maybe 3 hours. I didn't give it a lower star score as I will just cut the rubber off and give it back to them. So I was disappointed in the rubber middle not being more durable but the hard plastic it's made from is the strong material they need.
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Reviewed in the United States on May 16, 2026
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BLACKHAWKS
Los Angeles, US
★★★★★ 5
Bones
Color: 1 PC-Beef-Red
Yes bone 🍖 is very strong and durable MIA, Rocky and Rambo love them ..
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Reviewed in the United States on June 9, 2026
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Lexi
Cuba, US
★★★★★ 4
Smaller than pictured but still a good choice for LG-XL dogs/power chewers!
Color: 3 PC-Beef-Red, Color: 3 PC-Beef-Red
Fantastic that these come in a 3 pack - I wish more chew toys did this! The base for these chew toys is pretty tough! The center & ends are hard enough to withstand both my bully mixes & my Irish wolfhound/Great Dane cross. They’re safe enough for even the largest power chewers! (With Supervision) my American Bully got the rubber spikes chewed off in under 20 minutes which is mildly disappointing but he’s a true powerhouse & master destroyer of all chews so I’m not that bent out of shape about it. I do wish they were as large as they appear in the ad pics but isn’t that the game we all play ordering offline anymore? 🤷🏻‍♀️ • Pro Tip: smear this toy in peanut butter (xylitol free!), wet food mixed into a slurry with water or bone broth + kibble/treats, yogurt, or even pumpkin puree and freeze for a few hours & relax while watching all the organic engagement your dog gets out of this toy!
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Reviewed in the United States on June 3, 2026
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Amazon Customer
Natrona Heights, US
★★★★★ 5
Great chew toy!!!
Size: 4 Inch (Pack of 2)
My dachshunds love all the bam bones!!!
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Reviewed in the United States on June 9, 2026
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Kaylon Jenkins
Lake Worth, US
★★★★★ 5
Great for frenchies
Size: 4 Inch (Pack of 2)
My pups love these and they look just like the photo when playing lol
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Reviewed in the United States on June 1, 2026

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