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Z249254

Sigma-Aldrich

Quantofix® peroxides test sticks

range mg/L 0, 0.5, 2, 5, 10, 25

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UNSPSC Code:
41113034
NACRES:
NB.35

description

semi-quantitative

specific analyte(s)

hydrogen peroxide

reaction suitability

reaction type: Redox Reactions

packaging

pkg of 100 ea

manufacturer/tradename

Macherey-Nagel

detection method

colorimetric

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General description

For semi-quantitative determinations. Fast, just dip and read. Consists of a plastic strip with attached sealed test paper. Compare test paper with fields of equal size on color scale provided on plastic box. Dim.: 6 × 95 × 0.2 mm. Color change is white to blue.

An aqueous medium is needed.

Method of application:
Remove only as many test sticks as are required, and reseal the container immediately after use. Do not touch the test paper zone. Dip test stick briefly (approx. 1 second) into the test solution. After 5 seconds, compare the test paper zone with the color scale.

In the presence of hydrogen peroxide the test paper turns blue. QUANTOFIX®-Peroxide test sticks can also be used for the determination of peracetic acid and other organic and inorganic hydroperoxides. To test for hydroperoxides in organic solvents the test zone is wetted with one drop of water after evaporation of the solvent.

Interferences:
In the pH range of 2-9 the accuracy of the determination is independent of the pH of the test solution. Buffer strongly acidic solutions with sodium acetate and adjust alkaline solutions to about pH 5-7 with citric acid. Falsely positive results can only be caused by strong oxidizing agents.

Storage:
Avoid exposing the sticks to sunlight and moisture. Store unopened packs in refrigerator (+2°C to +8°C). Opened packs: store container in a cool and dry place.

Legal Information

Quantofix is a registered trademark of Macherey-Nagel GmbH & Co., KG

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

监管及禁止进口产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the accuracy of the Quantofix® peroxides test sticks, Product Z249254?

    The results obtained from the test sticks are considered to be qualitative, not quantitative.

  5. How do I use the Quantofix® peroxides test sticks, Product Z249254?

    Remove only as many test sticks as required and reseal the container immediately after use. Do not touch the test paper zone. Dip the test stick briefly (approximately 1 second) into the test solution. After 20 seconds, compare the test paper zone with the color scale.

  6. What color or colors will the Quantofix® peroxides test sticks, Product Z249254, turn in the presence of peroxides?

    The indicating portion of the test stick will turn from white or off-white to a shade of blue or purple. That color may be correlated with the colors on the "chips" printed on the label of the container.

  7. How should the Quantofix® peroxides test sticks, Product Z249254, be stored?

    Avoid exposing the stocks to sunlight and moisture. Store the container below 30°C in a dry place.

  8. What is the maximum operating temperature for Quantofix® peroxides test sticks, Product Z249254?

    The maximum recommended operating temperature is 35°C.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  10. My question is not addressed here, how can I contact Technical Service for assistance?

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