MACHEREY-NAGEL visocolor ECO Phosphate Test Kit User Manual
- October 28, 2023
- MACHEREY-NAGEL
Table of Contents
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
- 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.
- Add 6 drops of PO4-1, seal the glass and mix.
- Add 6 drops of PO4-2, seal the glass and mix.
- Open the glass after 10 min and place it on position B in the comparator.
- 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.
- 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