MACHEREY-NAGEL Visocolor Eco Potassium Test Kit User Manual
- June 3, 2024
- MACHEREY-NAGEL
Table of Contents
MACHEREY-NAGEL Visocolor Eco Potassium Test Kit
Method
- Turbidity measurement with sodium tetraphenyl borate
- Measurement range: 2–15 mg/L K+
Contents of test kit (*refill pack)
- sufficient for 60 tests
- 2 x 25 mL K-1*
- 12 g K-2*
- 1 measuring spoon 85 mm*
- 1 sample tube with mark
- 1 measuring tube 2–15 mg/L K+
- 1 instructions 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
- Rinse sample tube several times with the test sample and fill up to the graduation mark.
- Add 15 drops K-1, close sample tube, mix.
- Add 1 level measuring spoon K-2, close sample tube again and shake evenly about 30 s until the powdered reagent is completely dissolved. The test mixture becomes more or less turbid.
- Pour the liquid from the sample tube into the measuring tube until the black cross on the bottom of the measuring tube is no longer visible (as observed directly from above). The potassium concentration can be read off directly from the graduation on the measuring tube (bottom of meniscus).
- Immediately after reading off the test result, rinse the sample and measuring tubes thoroughly with water (if necessary also clean with a brush).
The method can also be applied for the analysis of sea water after dilution
(1+1) and filtration after addition of reagent K-1.
The reagents are also suitable for photometric evaluation. Please note the
different sample volume of 10 mL.
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
Turbidities interfere; turbid test samples have to be filtered prior to the
analy-sis (e. g. with membrane filtration kit 0.45 μm, REF 91650).
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
[email protected]
www.mn-net.com