Nickel Test Strips 10-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

Purchase Nickel Test Strips 10-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

Nickel Test Strips 10-200 ppm Reflectoquant   1 PK *Requires RQflex 2 EMD# 16950-1 MSDS (Material Safety Data Sheet)

Reflectoquant® Nickel Test strips

Purchase Nickel Test Strips 10-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

  • Gallade Part#: 16985
  • Mfr Part#: 16985-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 50 Strips

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  • Reflectoquant® Nickel Test, Catalog No. 16985/1

    1. Method

    Ni2+ ions react with dimethylglyoxime to form a light red complex, the concentration of which is determined reflectometrically.

    2. Measuring Range and Number of Determinations

    Measuring Range1) Number of Determinations
    10 - 200 mg/l Ni2+ 50

    1) for measurement of concentrations > 200 mg/l Ni2+ see section 6

    3. Applications

    Sample Material:

    Wastewater
    Electroplating baths
    Cooling lubricants

    4. Influence of Foreign Substances

    This was checked - in the case of interfering ions up to concentrations of 1,000mg/l - in solutions containing 100 and 0mg/l Ni2+. 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+ 1,000 Fe3+ 1,000 EDTA 100
    Al3+ 1,000 K+ 1,000 Anionic Surfactants1) 1,000
    Ascorbate 1,000 Mg2+ 1,000 Cationic Surfactants2) 1,000
    BO33-+ 1,000 Mn2+ 1,000 Nonionic Surfactants3) 100
    Br- 1,000 NH4+ 1,000 H2O2 1,000
    Ca2+ 1,000 NO2- 1,000 NaCl 10%
    Cd2+ 1,000 NO3+ 1,000 Na2SO4 10%
    Citrate 100 Oxalate 100    
    Cl- 1,000 Pb2+ 1,000    
    CN- 100 PO43- 1,000    
    CO32- 1,000 S2O32- 1,000    
    CrO42- 100 Tartrate 1,000    
    Cu2+ 1,000 Zn2+ 1,000    
    Fe2+ 1,000        

    1)tested with Na-dodecyl sulfate

    2)tested with N-cetylpyridinium chloride

    3)tested with polyvinylpyrrolidone

    5.Reagents and Auxiliaries

    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

    Other Reagents:

    EM Quant® Nickel Test, Cat. No. 10006, measuring range 10-500 mg/l Ni2+
    colorpHast® Universal indicator strips pH 0-14, Cat. No. 9590

    Sodium acetate GR Cat. No. SX0255
    Titristar® Sulfuric acid .5 mol/l Cat. No. SX1243K
    CertiPUR® Nickel standard solution ready for use, 1,000mg/l Ni2+, Cat. No. 1.19792

    6. Preparation

    • Check whether the nickel content is within the measuring range
    • Use the EM Quant® Nickel Test as a guide. Samples containing more than 200 mg/l Ni2+ must be diluted with distilled water.
    • The pH must be within the range 2-7. Check with universal indicator strips. If pH is lower than 2, buffer with sodium acetate; If greater than 7, add dilute sulfuric acid dropwise.

    7.Procedure

    • Observe the instructions for the RQflex Reflectometer.

    The following applies to the Nickel Test:

    Measurement Procedure A.

    Stored reaction time: 30 sec.

    • Remove 1 analytical test strip and immediately reclose the tube.
    • Press START button of the reflectometer and at the same time immerse both reaction zones of the test strip in the pretreated sample solution (5-30°C) for approx. 2 sec.
    • Vigorously shake off excess liquid from the test strip.
    • As soon as the beeper sounds (5 sec before end of reaction time), 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 Ni2+. The result is automatically stored.

    Note:

    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 nickel standard solution to 100 mg/l Ni2+ and analyze as described in section 7.

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