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Description
QuicKey Pro Sheep Estradiol ELISA KitThe QuicKey Pro Sheep Estradiol ELISA kit uses the Competitive ELISA principle. The micro ELISA plate provided in this kit has been pre coated with Sheep E2. Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for Sheep E2 are added to the micro ELISA plate wells. Sheep E2 in samples (or standards) competes with a fixed amount of E2 on the solid phase supporter for sites on the HRP linked detection antibody specific to E2.
The QuicKey Pro Sheep Estradiol ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Sheep E2. Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for Sheep E2 are added to the micro ELISA plate wells. Sheep E2 in samples (or standards) competes with a fixed amount of E2 on the solid phase supporter for sites on the HRP linked detection antibody specific to E2. Excess conjugate and unbound sample or standard are washed from the plate. The substrate solution is added to each well. 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 ±2 nm. The concentration of Sheep E2 in the samples is then determined by comparing the OD of the samples to the standard curve.
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4.6 ★★★★★
Based on 1564 reviews
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Product Reviews
★★★★★ 4
If you're looking for a budget-friendly option for everyday printing, this is a solid choice.
Size: 1 Ream | 500 Sheets, Style: Letter (8.5x11)
Let's be honest, reviewing copy paper isn't exactly thrilling. But,et's be honest, reviewing copy paper isn't exactly thrilling. But, if you're buying paper, you expect it to, well, work like paper. And in that regard, the Amazon Basics Multipurpose Copy Paper delivers. It works as paper should.
That's really the core of it. This paper is functional. It's the kind of paper you buy when you need a lot of it without breaking the bank. Here's a quick breakdown:
Pros:
Affordable: This is the biggest selling point. If you're looking for a budget-friendly option for everyday printing, this is a solid choice.
Good for High-Volume Printing: Because of its affordability, it's great for those situations where you're churning out documents and don't want to worry about the cost per page.
Works in Most Printers: I've used it in inkjet and laser printers without any major issues. It's generally reliable in terms of feeding and printing.
Acceptable Brightness: It's not the brightest white paper on the market, but it's acceptable for most general-purpose printing.
Cons:
Not Premium Quality: Don't expect a luxurious feel or exceptionally crisp print quality. It's not designed for high-resolution photos or important presentations.
Can Be a Little Thin: Compared to more expensive paper, it can feel a bit thinner. This might lead to slight show-through if you're printing heavily on both sides.
Packaging Can Sometimes Be Damaged: While not always the case, some users have reported damaged packaging upon delivery. This hasn't affected the paper itself in my experience, but it's something to be aware of.
Overall:
The Amazon Basics Multipurpose Copy Paper is a reliable and affordable option for everyday printing needs. It's not fancy, but it gets the job done. If you're looking for premium quality, look elsewhere. But if you just need a lot of paper, that works as paper should, and at a good price, this is a worthwhile choice.
That's really the core of it. This paper is functional. It's the kind of paper you buy when you need a lot of it without breaking the bank. Here's a quick breakdown:
Pros:
Affordable: This is the biggest selling point. If you're looking for a budget-friendly option for everyday printing, this is a solid choice.
Good for High-Volume Printing: Because of its affordability, it's great for those situations where you're churning out documents and don't want to worry about the cost per page.
Works in Most Printers: I've used it in inkjet and laser printers without any major issues. It's generally reliable in terms of feeding and printing.
Acceptable Brightness: It's not the brightest white paper on the market, but it's acceptable for most general-purpose printing.
Cons:
Not Premium Quality: Don't expect a luxurious feel or exceptionally crisp print quality. It's not designed for high-resolution photos or important presentations.
Can Be a Little Thin: Compared to more expensive paper, it can feel a bit thinner. This might lead to slight show-through if you're printing heavily on both sides.
Packaging Can Sometimes Be Damaged: While not always the case, some users have reported damaged packaging upon delivery. This hasn't affected the paper itself in my experience, but it's something to be aware of.
Overall:
The Amazon Basics Multipurpose Copy Paper is a reliable and affordable option for everyday printing needs. It's not fancy, but it gets the job done. If you're looking for premium quality, look elsewhere. But if you just need a lot of paper, that works as paper should, and at a good price, this is a worthwhile choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2025
★★★★★ 5
Reliable Everyday Printer Paper
Size: 1 Ream | 500 Sheets, Style: Letter (8.5x11)
This is standard plain printer paper for everyday home use, and it does exactly what it’s supposed to do without any issues. I have had no problems with paper jams, ink smudging, or feeding through the printer.
The paper is an average thickness, nothing special, but perfectly fine for printing documents. The color is white. It does not curl, and everything comes out clean and readable. It does not stand out in any particular way, but there is also nothing to complain about. Overall, it is reliable, consistent, and works well for regular home printing needs. I will buy again.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Good price. Good paper.
Size: 8 Reams | 4000 Sheets, Style: Letter (8.5x11)
I feel like I have purchased this paper a hundred times. I have it on subscription. It works great in all my printers.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Perfect sublimation paper!
Size: 8.5"x11"
The print quality is really good. I’ve had no issues so far. When sublimating, the colors are very vibrant! The paper is very great quality. Definitely worth every penny.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Crafting Finds 🫶🏽
Size: 11"x17", Size: 11"x17"
The colors pop and it can be used for all kind of custom items.
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Reviewed in the United States on May 18, 2026
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