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National Research & Development Institute for Non-Ferrous and Rare Metals - I M N R

Services

 The Chemical and Physical Analysis Laboratory can offer a wide range of services, such as:

  • establishing the materials and products chemical composition and structure.
  • determination of major elements and impurities in metals, alloys, metal powders, inorganic chemicals, ores, ceramic, refractory, composite, slag, minerals;
  • determination of rare earth contents in different matrices in metallic and non-metallic products;
  • determination of environmental pollution: water, soil;
  • thermal analysis for different types of materials.

 

Laboratory analysis can provide a wide range of services such as:

 

X-RAY DIFFRACTION

RENAR accredited laboratory (certificate LI No.1056/16.04.2015) for qualitative phase analysis by X-ray powder diffraction of inorganic polycrystalline materials.

Equipment name: Bruker-AXS D8 ADVANCE Diffractometer, Bragg-Brentano method for X-ray diffraction on powders having a CuKα radiation source and a SOL X detector, in vertical geometry θ – θ. The software SLEVE + and PDF-4+ database.

Applications:

  • Crystalline phase identification and quantification;
  • Crystallinity determination;
  • Average crystallites size determination;
  • Micro deformation determination;
  • Crystalline structure characterization: indexing, crystallization system, cell parameters.

Interest fields:

  • Chemistry;
  • Metals and alloys;
  • Geology - Mineralogical analyzes: asbestos, rocks, clays, zeolites, ores;
  • Environmental protection: industrial waste, by-products;
  • Construction materials;
  • Pigments;
  • Inorganic fertilizers.

 

ATOMIC ABSORPTION SPECTROMETRY

RENAR accredited laboratory (certificate LI No.1056/16.04.2015) for content determination of Cd, Ca, Pb, Au and Ag, by flame atomic absorption spectrometry from ores, concentrates and technological solutions.

Other elements in the non-accredited system can be determined.

Atomic absorption spectrometry ensures the quantitative determination of metal contents in a wide range of concentrations.

Equipment name: Atomic absorption spectrometer - AAS ZEEnit 700, Analytic Jena AG, with:

  • flame;
  • graphite furnace for liquid samples;
  • hydride and cold vapor generator.

Quantitative determination of metal content in a wide range of concentrations: from ppb to tens of %, using several measurement techniques.

Flame module equipped with double beam optics and background correction, for achieving determinations in both the absorption and atomic emission for alkaline metals. With this module, the following elements can be determine: Cu, Co, Cd, Pb, Sb, Zn, Ni, Fe, Cr, Mg, Ca, Na, K, Rb, Li, Sr, Ga, In, such as Au, Ag, Pt, Pd, Rh.

Graphite furnace module determine traces ad ultra- traces of metals.

Hydride and cold vapor generator have low detection limits for elements hydrides As, Bi, Sb, Se, Sn, Te.

 

 

THERMAL ANALYSIS SetSys Evolution

SETSYS Evolution, Setaram, France, can perform DSC/TG thermal analysis. Specification: temperature range between 20°C – 1600°C; heat flow 1°/min - 40°/min; gases: argon, helium or air. The amount required for an analysis is approximately 20 mg. Alumina crucibles are used.

Applications:

  • determination of thermal behaviour of metals, alloys or oxides;
  • determination of heat flow;
  • kinetic studies.

 

CHEMICAL ANALYSIS Volumetry and gravimetry

Laboratory perform quantitative and semi-quantitative determinations using the following methods:

     VOLUMETRY

 

Volumetry by neutralization reactions

 

Acidimetry

• dosage of strong acids with strong bases,

Alkalimetry

• dosage of strong bases with strong acids

• dosage of free ammonia;

• dosage of free ammonia from ammonia salts;

Volumetry by redox reactions

 

Permanganometry

• Ca dosing

• Ca activ dosing

• Mn (metoda Volhard) dosing

Iodometry

• Sn dosing

• sulphides dosing

• Sb dosing

Bicromatometrie

• Fe dosing

Bromatometrie

• Sb dosing

 

     GRAVIMETRY:

 

Gravimetric dosing

• Sn, Si, Ba, SO42-, CO2,

Moisture content

 

Calcination loss, carbon content, volatile substances, ashes.