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MAK074

Sigma-Aldrich

Ascorbic Acid Assay Kit

sufficient for 100 colorimetric or fluorometric tests

Synonym(s):

Vitamin C Assay Kit

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.84

usage

sufficient for 100 colorimetric or fluorometric tests

detection method

colorimetric
fluorometric

storage temp.

−20°C

General description

The new Ascorbic Acid Assay Kit, MAK505, is now available! Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates. Ascorbic acid functions as an enzymatic cofactor for multiple enzymes, serving as an electron donor for monooxygenases and dioxygenases. Ascorbic acid also functions as a powerful antioxidant, particularly in regards to reactive oxygen species.

Suitability

Suitable for use with biological fluids, food samples, and growth media. Proteins present in the sample can interfere with this assay. Protein containing samples are best analyzed using the Ascorbic Acid Assay II (MAK075). Alternatively, samples can be deproteinized using a 10 kDa Molecular Weight Cut-Off Spin Filter.

Principle

In this assay, Ascorbic Acid concentration is determined by a coupled enzyme reaction, which results in a colorimetric (570 nm)/fluorometric (λex = 535/ λem = 587 nm) product, proportional to the ascorbic acid present.

replaced by

Product No.
Description
Pricing

pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Sens. 1

Storage Class

10 - Combustible liquids

flash_point_f

188.6 °F - closed cup

flash_point_c

87 °C - closed cup

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
8L15K06610
7F22K06610
6B18K06610
6G20K06610
6A30K06610

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This paper evaluates the combined effect of biostimulant and light quality on bioactive compound production and seedling growth of soybean (Glycine max L. Merrill) plants. Germinated seeds pre-treated with different concentrations (0.01%, 0.05%, 0.5%) of an amino acid-based biostimulant were
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Antioxidants (Basel, Switzerland), 11(2) (2022-02-26)
In this work, we assess the potential of waste products of Phlegrean mandarin (Citrus reticulata Blanco), namely seeds and peel, to be reutilized as a source of bioactive compounds beneficial for the human diet. Starting from the evidence that the
Giulia Costanzo et al.
Antioxidants (Basel, Switzerland), 9(6) (2020-06-18)
Peel, pulp and seed extracts of three mandarin varieties, namely Phlegraean mandarin (Citrus reticulata), Kumquat (Citrus japonica), and Clementine (Citrus clementina) were compared and characterised in terms of photosynthetic pigment content, total polyphenols amount, antioxidant activity and vitamin C to
Manas R Gartia et al.
Scientific reports, 5, 16011-16011 (2015-11-04)
Limited training, high cost, and low equipment mobility leads to inaccuracies in decision making and is concerning with serious ocular injuries such as suspected ruptured globe or post-operative infections. Here, we present a novel point-of-service (POS) quantitative ascorbic acid (AA)
Stephanie P DiTroia et al.
Nature, 573(7773), 271-275 (2019-09-06)
Development is often assumed to be hardwired in the genome, but several lines of evidence indicate that it is susceptible to environmental modulation with potential long-term consequences, including in mammals1,2. The embryonic germline is of particular interest because of the
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Questions

1–4 of 4 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. What is the limit of detection for this assay?

    1 answer

    1. This assay is designed for the detection of ascorbic acid and is capable of detecting 0.01-10 nmol of ascorbic acid per assay.

      Helpful?

  4. What is the minimum detectable limit for your Ascorbic acid color metric assay kit. What is the accuracy level +/- ppm.

    1 answer

    1. While the absolute minimal limit has not been determined, this kit is intended and the standard curve is set up to detect 0.01-10 nmol of ascorbic acid per assay.

      Please see the link below to the product datasheet for further information:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/590/655/mak074bul.pdf

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