MACHEREY-NAGEL visocolor ECO Phosphate Test Kit User Manual

MACHEREY-NAGEL visocolor ECO Phosphate Test Kit

Method:
Ammonium molybdate forms with phosphate ions phosphomolybdic acid, which is reduced to phosphomolybdenum blue.

Measurement range

0.2–5 mg/L PO4-P

Contents of test kit (*refill pack)

sufficient for 80 tests

• 25 mL PO4-1*
• 25 mL PO4-2*
• 2 screw-plug measuring glasses
• 1 slide comparator
• 1 color chart
• 1 plastic syringe 5 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.

Instructions for use

also refer to the pictogram on the back of the color chart

1. Pour a 5 mL water sample into each of the measuring glasses using the plastic syringe. Place a measuring glass on position A in the comparator. Only add the reagent to measuring glass B.
2. Add 6 drops of PO4-1, seal the glass and mix.
3. Add 6 drops of PO4-2, seal the glass and mix.
4. Open the glass after 10 min and place it on position B in the comparator.
5. Slide the comparator until the colors match in the inspection hole on top. Check the measurement reading in the recess on the comparator reed. Mid-values can be estimated.
6. After use, rinse out both measuring glasses thoroughly and seal them. The reagents can be used for the photometric evaluation with photometer PF-12 / PF-12Plus.

This technique can be used also for analyzing sea water.

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.

Interferences:
Larger amounts of oxidizing reagents inhibit formation of the blue color complex and have to be destroyed. H2S interferes in concentrations above 2 mg/L, but can be expelled after acidification of the water sample. Heavy metals in excess of 10 mg/L can slightly decrease the intensity of the color (vanadium causes an increase in color). Silica interferes in excess of 10 mg/L Si.

Conversion table:

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

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>