Manganese Test Strips 0.5-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl

Purchase Manganese Test Strips 0.5-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl

Manganese Test Strips 0.5-45 ppm Reflectoquant   1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl MSDS (Material Safety Data Sheet)

Reflectoquant® Manganese Test Strips

Purchase Manganese Test Strips 0.5-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl

  • Gallade Part#: 16991-1
  • Mfr Part#: 16991-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 50 Strips
  • Misc: HAZMAT UN1824 PGII CORROSIVE

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  • Reflectoquant® Manganese Test, Catalog No. 16991/1

    1. Method

    Mn2+ ions are oxidized to manganese(IV) oxide. This produces a discoloration of an organic redox indicator, which is determined reflectometrically.

    2. Measuring Range and Number of Determinations

    Measuring Range1) Number of Determinations
    0.5 - 45.0mg/l Mn2+ 50

    1) for measurement of concentrations > 45.0mg/l Mn2+ see section 6

    3. Applications

    Sample Material:

    Groundwater and drinking water

    Industrial water

    Wastewater

    Boiler feed water

    4. Influence of Foreign Substances

    This was checked - in the case of interfering ions up to concentrations of 1,000 mg/l - in solutions containing 20 and 0 mg/l Mn2+. The concentrations of foreign substances given in the table lie below the limit at which the determination is interfered with:

    Concentrations of Foreign Substances in mg/l or %

    Ag+ 5
    Al3+ 100
    Ascorbate 10
    BO33- 1,000
    Ca2+ 1,000
    Cd2+ 100
    Citrate 100
    CN- 1,000
    Co2+ 5
    CO32- 1,000
    Cr3+ 1
    CrO42- 10
    Cu2+ 50
    Fe2+ 5
    Fe3+ 5
    K+ 1,000
    Mg2+ 100
    MoO42- 1,000
    NH4+ 100
    Ni2+ 1,000
    NO2- 10
    NO3- 1,000
    Oxalate 1,000
    Pb2+ 100
    PO43- 10
    SO32- 1,000
    S2O32- 100
    Tartrate 100
    Zn2+ 50
    EDTA 10
    Anionic Surfactants1) 100
    Cationic Surfactants2) 100
    Nonionic Surfactants3) 1,000
    H2O2 100
    NaCl 10%
    Na2SO4 10%

    1)tested with Na-dodecyl sulfate

    2)tested with N-cetylpyridinium chloride

    3)tested with polvinylpyrrolidone

    Oxidizing cations and anions interefere with the determination (see section 7, "Notes").

    5.Reagents and Auxiliaries

    Please Note the Warnings on Labels!
    The analytic test strips are stable at least up to the date stated on the pack when stored in the closed tube at +15 to +25°C.

    Package Contents:

    Tube containing 50 analytical test strips
    Bar code strip
    1 bottle of reagent Mn-1
    1 bottle of reagent Mn-2

    Other Reagents:

    EM Quant® Manganese Test, Cat. No. 10080, measuring range 2-100 mg/l Mn2+
    colorpHast® Universal indicator strips pH 0-14, Cat. No. 9590
    Titristar® Sulfuric acid 25% GR, Cat. No.SX1243M
    Manganese standard solution ready for use, 1,000 mg/l Mn2+, Cat. No. MX0172

    6. Preparation

    • Check whether the manganese content is within the measuring range
    • Use the EM Quant® Manganese Test as a guide. Samples containing more than 45mg/l Mn2+ must be diluted with distilled water.
    • The pH must be within the range 1-7. Check with universal indicator strips. If pH is greater than 7, add dilute sulfuric acid dropwise.

    7. Procedure

    · Observe the instructions for the RQflex Reflectometer.

    The following applies to the Manganese Test:

    Measurement Procedure B.

    Stored waiting time: 15 sec.

    Stored reaction time: 60 sec.

    • Remove 1 analytical test strip and immediately reclose the tube.
    • Immerse both reaction zones of the test strip in the pretreated sample solution (10-40°C) for approx. 2 sec.
    • Vigorously shake off excess liquid from the test strip.
    • Place 1 drop of reagent Mn-1 on each of the reaction zones and at the same time press START button of the reflectometer.
    • After the end of the waiting time, vigorously shake off excess liquid from the test strip. The reaction time is shown on the display.
    • Place 1 drop of reagent Mn-2 on each of the reaction zones and at the same time press START button of the reflectometer.
    • As soon as the beeper sounds (5 sec before end of reaction time), vigorously shake off excess liquid from the test strip. Then immediately insert the test strip all the way into the strip adapter with the reaction zones facing the display.
    • Read off the result from the display in mg/l Mn2+. The result is automatically stored.

    Notes:

    • In samples containing oxidizing cations or anions, the reaction zones turn green in color even before the addition of the reagents.
    • At the end of each workday, cleanse the strip adapter thoroughly with water or ethanol.

    8. Method Control

    To check analytical test strips, equipment and procedure:

    Dilute manganese standard solution to 10mg/l Mn2+ and analyze as described in section 7.

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