Arsenic Test Strips 0.01-0.5 ppm EM Quant (1 PK of 100) HAZMAT fee incl

Purchase Arsenic Test Strips 0.01-0.5 ppm EM Quant (1 PK of 100) HAZMAT fee incl

Arsenic Test Strips 0.01-0.5 ppm EM Quant   (1 PK of 100)  HAZMAT fee incl MSDS (Material Safety Data Sheet)

EM Quant® Arsenic Test (sensitive) EMD Chemicals Inc.

Purchase Arsenic Test Strips 0.01-0.5 ppm EM Quant (1 PK of 100) HAZMAT fee incl

  • Gallade Part#: 17926-1
  • Mfr Part#: 17926-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 100 Strips
  • Misc: HAZMAT UN2796 PGII

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  • EM Quant® Arsenic Test (sensitive), Catalog No. 17926/1

    1. Method

    When zinc and sulfuric acid are added to compounds of arsenic(III) and arsenic(V), arsenic hydride is liberated, which in turn reacts with mercury(II) bromide contained in the reaction zone of the analytical test strip to form yellow-brown mixed arsenic mercury halogenides. The concentration of arsenic(III) and arsenic(V) are measured semiquantitatively by visual comparison of the reaction zone of the analytical test strip with the fields of a color scale.

    2. Measuring Range and Number of Determinations

    Measuring Range/Color Scale Graduation Number of Determinations
    0.01 - 0.025 - 0.05 - 0.1 - 0.5 mg/l As3+/5+ 100

    3. Applications

    Sample Material:
    Drinking water, mineral water, and curative water
    Spring water and well water
    Groundwater and surface water

    4. Influence of Foreign Substances

    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
    Ag+ 1
    Al3+ 100
    Ca2+ 1000
    Cl- 1000
    ClO3- 25
    CN- 1000
    Co2+ 5
    CO32- 1000
    CrO42- 1000
    Cu2+ 0.5
    F- 500
    Fe2+ 1000
    Fe3+ 1000
    Hg2+ 5
    K+ 1000
    Mg2+ 1000
    MnO4- 500
    Na+ 1000
    Ni2+ 10
    NO2- 100
    NO3- 100
    PO43- 100
    S2- 0.5
    Sb3+ 1
    SeO32- 1
    Sn2+ 100
    SO32- 1
    SO42- 1000
    S2O32- 0.5
    Zn2+ 1000
    EDTA 1000

    5. Reagents and Auxiliaries

    Please note the warnings on the packaging materials!
    The analytical 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 100 analytical test strips
    1 bottle of reagent As-1
    2 bottles of reagent As-2
    1 graduated 10ml plastic syringe
    1 reaction vessel with stopper
    1 measuring spoon

    Other Reagents:

    Arsenic standard solution CertiPUR®, 1000 mg/l As, Cat. No. 1.19773

    6. Preparation

    Samples containing more than 0.5mg/l As3+/5+ must be diluted with distilled water. Alternatively, it is also possible to use the EM Quant® Arsenic Test Cat. No. 10026/1 (measuring range 0.1-3mg/l As3+/5+).

    7. Procedure

    With the reaction zone first, insert the analytical test strip approximately halfway through the slot in the stopper of the reaction vessel.
    Pretreated sample 10ml Inject into the reaction vessel using the syringe.
    Reagent As-1 2 level measuring spoonfuls Add and swirl.
    Reagent As-2 10 drops Add rapidly, immediately close the reaction vessel with the stopper, and swirl gently. Avoid any contact between the test strip and the sample solution!
    Leave to stand for 30 min, gently swirling two or three times.

    Remove the test strip, briefly dip into water, shake off excess liquid and determine which color field on the label coincides most exactly.

    Read off the corresponding result in mg/l As3+/5+. If an exact color match cannot be achieved, estimate an intermediate value.

    Notes on the Measurement:

    • The color of the reaction zone may continue to change after the specified reaction time as 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 0.5mg/l As3+/5+ is obtained. This must then be multiplied by the corresponding dilution factor.

    8. Method Control

    To check analytical test strips, test reagents, and handling:
    Dilute arsenic standard solution to 0.1mg/l As3+/5+ and analyze as described in section 7.

    9. Notes

    • Reclose the reagent bottles and the tube containing the test strips immediately after use.
    • Rinse the reaction vessel and the syringe with distilled water only.
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