Z101680

Sigma-Aldrich

Quantofix® peroxides test sticks

range of application 1-100 mg/L

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

range of application measuring range

1-100 mg/L

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
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