生物测定系统/QuantiChrom™FRAP分析试剂盒/250试验/DFRAP-250

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¥6580.00
货号:DFRAP-250
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品牌:BioAssay Systems
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商品描述

QuantiChrom™ FRAP Assay Kit

QuantiChrom™ FRAP Assay Kit Catalog No: DFRAP-250
Price: $329 Qty:
For orders of 10 or more kits, please call +1-510-782-9988x1 oremail us for best pricing and/or bulk order. Shipping: RT Shipment: Fedex ServiceDelivery: 1-2 days (US), 3-6 days (Intl) Storage: 4°C
FRAP Assay Kit
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ProtocolSDS

Application

  • Quantitative determination of ferric reduction antioxidant potential (FRAP)

Key Features

  • Sensitive and accurate. Linear detection range: 0.5 to 180 µM Fe3+ reduction potential in 96-well plate assay.
  • Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 40 min. Can be readily automated as a high-throughput assay for thousands of samples per day.
  • Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability.

Method

  • OD590nm

Samples

  • Plant extracts, foods, vitamins, supplements, and biological samples such as serum, plasma, and urine

Species

  • All

Size

  • 250 tests

Detection Limit

  • 0.5 μM

Shelf Life

  • 12 months

More Details

  • FERRIC REDUCTION ANTIOXIDANT POTENTIAL (FRAP) is a measure of antioxidant capacity quantified by the antioxidant?s potential to reduce ferric iron (III) to ferrous iron (II). Antioxidants protect cells from damage by reactive oxygen species that are produced by oxidation reactions. As oxidative stress contributes to the development of many diseases including Alzheimer"s disease, Parkinson"s disease, diabetes, rheumatoid arthritis and neurodegeneration, the use of antioxidants in pharmacology is intensively studied. Antioxidants are also widely used as dietary supplements and as preservatives in a wide range of products such as food, cosmetics, rubber and gasoline.Simple, direct and high-throughput assays for antioxidant capacity find wide applications in research, food industry and drug discovery. BioAssay Systems' improved assay measures antioxidant potential in which Fe3+ is reduced by antioxidant to Fe2+. The resulting Fe2+ specifically forms a colored complex with a chromogen. The color intensity at 590 nm is proportional to FRAP in the sample.

Can you use this assay with serum or plasma samples?

Yes, serum and plasma samples should be diluted 10-fold in dH2O prior assay. Correct for dilution factor (n = 10) in the calculation.

Can you use this assay with urine samples?

Yes, urine samples should be diluted 20-fold in dH2O prior assay. Correct for dilution factor (n = 20) in the calculation.

What happens if my sample has oxidants or reactive oxygen species (ROS) in it?

Samples with oxidants or ROS will yield lower measurements of antioxidant potential because antioxidants in the sample will reduce the oxidants and ROS rather than the Fe3+, this results in lower levels of Fe2+,which is what the assay measures to determine FRAP.

What happens if my sample has iron in it?

This assay measures antioxidant potential to reduce Fe3+ to Fe2+. If the sample has intrinsic Fe2+, this will yield a false positive for antioxidant potential.For more detailed product information and questions, please feel free to Contact Us. Or for more general information regarding our assays, please refer to our General Questions.
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If you or your labs do not have the equipment or scientists necessary to run this assay, BioAssay Systems can perform the service for you.Simply send us your samples:- Fast turnaround - Quality data - Low costPlease email or call 1-510-782-9988 x 2 to request assay service.
BioAssay Systems酸性磷酸酶(ACP)是一种在消化过程中催化磷酸基团从其他分子上裂解的酶。酸性磷酸酶可以在溶酶体中发现,并在与内体融合,酸化pH值后变得有活性,从而为ACP创造了最佳环境。ACP还可以在骨骼,脾脏,肝脏,肾脏和血液中发现。血清水平可以用作前列腺癌的生物标志物,尽管前列腺特异性抗原(PSA)被更广泛地使用。BioAssay Systems非放射性比色ACP分析基于从合成底物上裂解对硝基苯酚。加入终止剂后,对硝基苯酚会显色。加入终止剂后在405 nm处吸光度的增加与酶活性成正比。