Supelco 110001 MQuant Test Strips Instruction Manual

Supelco 110001 MQuant Test Strips

Method

Peracetic acid reacts with a phenol derivative to form a violet dye. The concentration of peracetic acid is measured semiquantitatively by visual comparison of the reaction zone of the test strip with the fields of a color scale.

Measuring range and number of determinations

Applications

This test is suited for the selective determination of the peracetic acid concentration in disinfectant solutions, also in cases in which hydrogen peroxide is present.

Influence of foreign substances

This was checked individually in solutions with 200 and 0 mg/l peracetic acid. The determination is not yet interfered with up to the concentrations of foreign substances given in the table. Cumulative effects were not checked; such effects can, however, not be excluded.

Reagents and auxiliaries

The test strips are stable up to the date stated on the pack when stored closed at+2 to +8 °C.

Package contents:

Tube containing 100 test strips

Other reagents:

• MQuant® Indicator strips pH 0 – 6.0,
• Cat. No. 1.09531
• Sodium acetate anhydrous for analysis
• EMSURE®, Cat. No. 1.06268
• Acetic acid (glacial) is 100 % anhydrous for analysis EMSURE®, Cat. No. 1.00063

Preparation

• Samples containing more than 500 mg/l peracetic acid must be diluted with distilled water.
• The pH must be within the range 3 – 4. If necessary adjust the pH to 3.5 with sodium acetate solution (50 g/l) or dilute acetic acid (100 g glacial acetic acid/l).

Procedure

Immerse the reaction zone of the test strip in the pretreated sample (15 – 30 °C) for 1 sec. Shake off excess liquid from the strip and after 10 sec determine with which color field on the label the color of the reaction zone coincides most exactly. Read off the corresponding result in mg/l peracetic acid.

Notes on the measurement:

• The color of the reaction zone may continue to change after the specified reaction time has elapsed. This must not be considered in the measurement.
• If the color of the reaction zone is equal to or more intense than the darkest color on the scale, repeat the measurement using fresh, diluted samples until a value of less than 500 mg/l peracetic acid is obtained. Concerning the result of the analysis, the dilution (see also section 6) must be taken into account:
  • Result of analysis = measurement value x dilution factor

Note

Reclose the tube containing the test strips immediately after use.

MilliporeSigma is the U.S. and Canada Life Science business of Merck KGaA, Darmstadt, Germany. © 2023 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved. MilliporeSigma, Supelco, Sigma-Aldrich, and MQuant are trademarks of Merck KGaA, Darmstadt, Germany or its affiliates. All other trademarks are the property of their respective owners. Detailed information on trademarks is available via publicly accessible resources. EMD Millipore Corporation, 400 Summit Drive

• Burlington MA 01803, USA,
• Tel. +1-978-715-4321
• www.sigmaaldrich.com/mquant
• MilliporeSigma Canada Ltd., 2149 Winston Park Dr,
• Oakville, Ontario, L6H 6J8, Canada
• Phone: +1 800-565-1400
• www.sigmaaldrich.com

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