Macherey-Nagel NANOCOLOR Potassium 50 Tube test Operating instructions

NANOCOLOR Potassium 50 Tube test
Brand
Macherey-Nagel
Model
NANOCOLOR Potassium 50 Tube test
Type
Operating instructions

This manual is also suitable for

Macherey-Nagel NANOCOLOR Potassium 50 Tube test is a device for the photometric determination of potassium ions (K+) in various water samples. It has a measuring range of 2-50 mg/L K+ and offers high accuracy with a standard deviation of ± 1 mg/L K+ and a confidence interval of ± 2 mg/L K+. The test is easy to perform, with a reaction time of only 2 minutes, and requires only a few simple steps. It is suitable for use in surface water, ground and drinking water, as well as seawater.

Macherey-Nagel NANOCOLOR Potassium 50 Tube test is a device for the photometric determination of potassium ions (K+) in various water samples. It has a measuring range of 2-50 mg/L K+ and offers high accuracy with a standard deviation of ± 1 mg/L K+ and a confidence interval of ± 2 mg/L K+. The test is easy to perform, with a reaction time of only 2 minutes, and requires only a few simple steps. It is suitable for use in surface water, ground and drinking water, as well as seawater.

en
NANOCOLOR® Potassium 50
www.mn‑net.com
www.mn‑net.com
DE Tel.: +49 24 21 969-0 [email protected]
CH Tel.: +41 62 388 55 00 [email protected]
FR Tel.: +33 388 68 22 68 [email protected]
US Tel.: +1 484 821 0984 [email protected]
MACHEREY-NAGEL GmbH & Co. KG
Neumann-Neander-Str. 6–8
52355 Düren · Germany
www.mn‑net.com
www.mn‑net.com
DE Tel.: +49 24 21 969-0 [email protected]
CH Tel.: +41 62 388 55 00 [email protected]
FR Tel.: +33 388 68 22 68 [email protected]
US Tel.: +1 484 821 0984 [email protected]
MACHEREY-NAGEL GmbH & Co. KG
Neumann-Neander-Str. 6–8
52355 Düren · Deutschland
REF: 985045
Overview
The test is suitable for the photometric determination of K+.
The test is suitable for surface water, ground and drinking water.
• Measuring range:
2-50 mg/L K+ (method 0451)
5-120 mg/100 g (method 0452)
• Number of tests: 20
• Wavelength for photometric determination: 690 nm
• Shelf life: 24 months
• Reaction time: 2 minutes
• Storage temperature: 15–25 °C
• Storage conditions: upright
Method
Photometric determination as potassium tetraphenylborate.
Interferences
The foreign materials shown here do not interfere with the test up
to the indicated concentrations (in mg/L). The cumulative eect of
dierent interfering ions has not been tested.
Data in mg/L:
• NH4-N: 200
The method can be applied for analyzing seawater.
Turbidity should be filtered out prior to the measurement.
Reagents and accessories
Contents of reagents set:
• 20 test tubes R0
• 1 reagent R2
• 1 reagent R3
• 1 measuring spoon, black, 85 mm
Required devices:
• MACHEREY-NAGEL photometer
• Digital piston pipette 1–5 mL (REF916909) with pipette tips
(REF916916)
• Digital piston pipette 100–1000 µL (REF 91677) with pipette tips
(REF 91667)
Standards
• NANOCONTROL Multistandard Metals 2 (REF925016)
Sampling and preparation
See DIN EN ISO 5667-3-A 21.
Adjust to pH 1–13 prior to analysis.
Quality control
The measurement of a blank value and a standard is recommended
before every measuring series as quality control measure.
Quality data:
The following data were determined during production according to
ISO 8466-1 and DIN 38402-A51:
• Standard deviation of the method: ±1mg/LK+
• Coecient of variation of the process: ±3%
• Confidence interval: ±2mg/LK+
• Number of LOTs: 6
Specified data for procedure:
• Sensitivity (absorbance of 0.010 A corresponds to):
±0.2mg/LK+
LOT-specific certificates are available at www.mn‑net.com.
Procedure
1. Open test tube
2. Add 200 µL R2
3. Pipette 2 mL of sample into test tube
4. Seal test tube and shake vigorously
5. Wait 1 min
6. Add 1 level measuring spoon of reagent R3
7. Seal test tube and shake for 10 s
8. Wait 2 min
9. Clean outside of test tube
10. Measure
Notes
When using other photometers, make sure measurements are
possible in test tubes (16 mm OD) and calibrate the method.
Correction value e. g. for colored or turbid samples possible (see
photometer manual).
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.
11/2020
  • Page 1 1

Macherey-Nagel NANOCOLOR Potassium 50 Tube test Operating instructions

NANOCOLOR Potassium 50 Tube test
Brand
Macherey-Nagel
Model
NANOCOLOR Potassium 50 Tube test
Type
Operating instructions
This manual is also suitable for

Macherey-Nagel NANOCOLOR Potassium 50 Tube test is a device for the photometric determination of potassium ions (K+) in various water samples. It has a measuring range of 2-50 mg/L K+ and offers high accuracy with a standard deviation of ± 1 mg/L K+ and a confidence interval of ± 2 mg/L K+. The test is easy to perform, with a reaction time of only 2 minutes, and requires only a few simple steps. It is suitable for use in surface water, ground and drinking water, as well as seawater.

Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents