Impex Produkter NANOCOLOR Ammonium 10 Instruction Manual

Impex Produkter NANOCOLOR Ammonium 10

Overview

• The test is suitable for the photometric determination of NH4+. The test is in accordance with APHA  4500-NH3  F, ISO  7150-1, DIN 38406-E5 and EPA 350.1.
• The test is suitable for surface water, groundwater and drinking water and slightly contaminated wastewater.
• Results are highly reproducible in water with low levels of pollutants.
• Measuring range:
  • 0.2–8.0 mg/L NH4-N (method 0041)
  • 0.2–10.0 mg/L NH4+ / NH3 (method 0042 / 0043)
• Number of tests: 20
• Wavelength for photometric determination: 660 / 690 nm
• Shelf life: 12 months
• Reaction time: 15 minutes
• Storage temperature: 15–25 °C
• Storage conditions: upright

Method

Photometric determination of a blue indophenol dye based on a reaction with hypochlorite and salicylate at a pH of 12.6 in the presence of sodium nitroprusside.
Interferences
Heavy pollution results in errors and requires prior distillation.
The method can be applied for analyzing seawater.
Turbidities cause higher measurement values.
Reagents and accessories

Contents of reagents set:

• 20 test tubes R0
• 1 NANO FIX R2

Required devices:

• MACHEREY-NAGEL photometer
• Digital piston pipette 1–5 mL (REF 916909) with pipette tips (REF 916916)
• Tweezers for sampling NANOFIX capsules (REF 916114)

Standards

• NANOCONTROL Multistandard Sewage outflow 1 (REF 925011)

Sampling and preparation

• See DIN EN ISO 5667-3-A 21.
• Adjust to pH 1–13 with NaOH or HCl prior to analysis.

Quality control

• The measurement of a blank value and a standard is recommended before every measuring series as quality control measure. www.mn-net.com
• Quality data: The following data were determined during production according to ISO 8466-1 and DIN 38402-A51:
• Number of LOTs: 73
• The standard deviation of the method: ± 0.08 mg/L NH4-N
• Coefficient of variation of the process: ± 1.91 %
• Confidence interval: ± 0.18 mg/L NH4-N

Specified data for the procedure:

• Sensitivity (absorbance of 0.010 A corresponds to): 0.050 mg/L NH4-N
• Accuracy of a measurement value: ± 0.146 mg/L NH4-N LOT-specific certificates are available at www.mn-net.com.

Procedure

1. Open test tube
2. Pipette 1 mL of sample into a test tube
3. Add 1 NANOFIX R2
4. Seal the test tube and shake it vigorously
5. Wait 15 min
6. Clean the outside of the test tube
7. 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. 08/2020
• MACHEREY-NAGEL GmbH & Co. KG · Neumann-Neander-Str. 6–8 · 52355 Düren · Germany
• DE / International:
• Tel.: +49 24 21 969-0
• Fax: +49 24 21 969-199
• E-mail:[email protected]
• CH:
• Tel.: +41 62 388 55 00
• Fax: +41 62 388 55 05
• E-mail:[email protected]
• FR:
• Tel.: +33 388 68 22 68
• Fax: +33 388 51 76 88
• E-mail:[email protected]
• MACHEREY-NAGEL GmbH & Co. KG · Neumann-Neander-Str. 6–8 · 52355 Düren · Deutschland
• www.mn-net.com
• DE / International:
• Tel.: +49 24 21 969-0
• Fax: +49 24 21 969-199
• E-Mail:[email protected]
• CH:
• Tel.: +41 62 388 55 00
• Fax: +41 62 388 55 05
• E-Mail: [email protected]
• FR:
• Tel.: +33 388 68 22 68
• Fax: +33 388 51 76 88
• E-Mail: sales-fr@mn-net.com

References

• MACHEREY-NAGEL Webshop | MACHEREY-NAGEL

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