MACHEREY-NAGEL visocolor Eco Fluoride Reagent Set User Manual

MACHEREY-NAGEL visocolor Eco Fluoride Reagent Set

Method

Photometric determination of fluoride with 1.8-dihydroxy-2-(4-sulfophenylazo) naphthalene-3.6-sulfonic acid (SPADNS).

Measurement range: 0.1–2.0 mg/L F–

Contents

• sufficient for 75–150 tests
  • 3 x 30 mL F-1
  • 1 plastic syringe 5 mL
  • 1 plastic syringe 1 mL
  • 1 instruction for use

Hazard warning: Information regarding safety can be found on the box’ label and in the safety data sheet. You can download the SDS from www.mn- net.com/SDS.

Procedure

Requisite accessories: reaction tubes 16 mm OD (REF 91680)

Sample

1. Rinse reaction tube 16 mm OD several times with sample and fill with 5 mL sample (5 mL syringe).
2. Add 0.6 mL F-1 (1 mL syringe), close and mix.

Blank value

1. Fill reaction tube 16 mm OD with 5 mL distilled water (5 mL syringe).
2. Add 0.6 mL F-1 (1 mL syringe), close and mix

Reaction time: 1’00 min

Measurement: Call up method Perform measurement
After use, rinse out both reaction tubes thoroughly and seal them.

Interferences

The following ions will not interfere: < 1000 mg/L Cu2+; < 500 mg/L Ca2+, Ni2+, Zn2+; < 200 mg/L Fe3+; < 100 mg/L SO4 2–; < 50 mg/L Cr(III); < 20 mg/L Si(IV); < 10 mg/L Cr(VI); < 5 mg/L PO4 3–, Cl2; < 0.1 mg/L Al3+.
Sea water requires a distillation

Disposing of the samples

Information regarding disposal can be found in the safety data sheet. You can download the SDS from www.mn-net.com/SDS.
Storage: Store the test kit in a cool (< 25 °C) and dry place.

MACHEREY-NAGEL GmbH & Co. KG · Neumann-Neander-Str. 6–8 · 52355 Düren

• Germany
• Tel.: + 49 24 21 969-0
• Fax: +49 24 21 969-199
• info@mn-net.com
• www.mn-net.com

References

• MACHEREY-NAGEL Webshop | MACHEREY-NAGEL

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