MACHEREY-NAGEL 985 049 Test 0-49 NANOCOLOR Silver 3 Instructions

MACHEREY-NAGEL 985 049 Test 0-49 NANOCOLOR Silver 3

Method:
Silver ions react with an indicator to form a blue dye.

Contents of reagent set

20 test tubes Silver 3

• 1 test tube with 11 mL Silver 3 R2
• 1 test tube with 11 mL Silver 3 R3

Hazard warning:
This test does not contain any harmful substances which must be specially labelled as hazardous.

Interferences

Silver compounds like silver bromide, silver chloride, silver iodide, silver cyanide or silver thiocyanate are not detected by the determination. These compounds can be determined after pretreatment
with NANOCOLOR® NanOx Metal (REF 918 978).

The following ions will not interfere:

• < 1000 mg/L Pb2+, F–, NO3–, SO42–
• < 500 mg/L PO4 3–
• < 200 mg/L Mn2+, Ni2+
• < 100 mg/L Al3+, Cr(III)
• < 50 mg/L Cd2+
• < 20 mg/L Ca2+, Cu2+, Fe3+, Hg2+, Mg2+, Zn2+
• < 10 mg/L Cr(VI), Mo(VI)
  The method can not be applied for the analysis of sea water.

Procedure

Requisite accessories: piston pipette with tips

Lower silver concentrations (0.08–0.50 mg/L Ag+) can be determined by using 50 mm semi-micro cuvettes (REF 919 50):

Pour the contents of test tubes into 50 mm semi-micro cuvettes and measure after 10 min [method 1491].

Measurement

For NANOCOLOR® photometers see manual, test 0-49.

Measurement when samples are colored or turbid:
For all NANOCOLOR® photometers see manual, use key for correction value.

Photometers of other manufacturers:
For other photometers check whether measurement of round glass tubes is possible. Verify factor for each type of instrument by measuring standard solutions.

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

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