Determination of molybdenum in environmental samples.

Determination of molybdenum in environmental samples.

Analytica chimica acta (2007-04-10)

Krystyna Pyrzynska

ZUSAMMENFASSUNG

Determination of molybdenum in different kinds of environmental samples is often a challenging task for analysts. Its concentration is usually very low and the sample matrix may cause serious interferences during measurement. Therefore, preconcentration and separation methods should be used to solve these problems and render more sensitive, accurate and interference-free determination. Recent developments in sample treatment, such as solid phase and liquid-liquid extraction as well as coprecipitation are presented, including flow-based methodology. In addition, important extension and improvements in analytical methods for determinations of molybdenum are updated. Some examples of speciation analysis are also presented.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

266892

Sigma-Aldrich

Molybdän, powder, <150 μm, 99.9% trace metals basis

357227

Sigma-Aldrich

Molybdän, foil, thickness 0.025 mm, ≥99.9% trace metals basis

266922

Sigma-Aldrich

Molybdän, foil, thickness 0.1 mm, ≥99.9% trace metals basis

366986

Sigma-Aldrich

Molybdän, powder, 10 μm, ≥99.95% trace metals basis

577987

Sigma-Aldrich

Molybdän, nanopowder, <100 nm particle size (TEM), 99.8% trace metals basis

266914

Sigma-Aldrich

Molybdän, wire, diam. 1.0 mm, 99.95% trace metals basis

357200

Sigma-Aldrich

Molybdän, foil, thickness 1.0 mm, ≥99.9% trace metals basis

GF12078457

Molybdän, foil, 15mm disks, thickness 0.005mm, 99.9%

GF33272333

Molybdän, mesh, 100x100mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh

GF44891006

Molybdän, wire, straight, 1000mm, diameter 0.5mm, 99.95%

GF04272049

Molybdän, pellets, 200g, max. size 10mm, 99.9%

GF12034178

Molybdän, pellets, 100g, max. size 10mm, 99.9%

GF70791712

Molybdän, wire reel, 1000m, diameter 0.125mm, annealed, 99.95%

GF73901392

Molybdän, rod, 50mm, diameter 5.0mm, 99.98%

GF59041740

Molybdän, mesh, 150x150mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh

GF44777616

Molybdän, foil, 50x50mm, thickness 0.1mm, annealed, 99.9%

GF38499700

Molybdän, foil, 25mm disks, thickness 0.0125mm, 99.9%

GF01988501

Molybdän, tube, 500mm, outside diameter 2.0mm, inside diameter 1.3mm, wall thickness 0.35mm, 99.9%

GF00096274

Molybdän, pellets, 50g, max. size 10mm, 99.9%

GF01730168

Molybdän, wire, straight, 1000mm, diameter 0.25mm, 99.95%

GF38214187

Molybdän, tube, 100mm, outside diameter 1.0mm, inside diameter 0.7mm, wall thickness 0.15mm, 99.9%

GF01979477

Molybdän, mesh, 100x100mm, nominal aperture 0.8mm, wire diameter 0.18mm, 26 wires/inch, open area 67%, plain weave mesh

GF97201818

Molybdän, foil, 100x100mm, thickness 0.1mm, annealed, 99.9%

GF61564552

Molybdän, foil, 100x100mm, thickness 0.5mm, annealed, 99.9%

GF39871895

Molybdän, foil, 0.5m coil, thickness 0.05mm, annealed, 99.9%

GF68041964

Molybdän, wire reel, 1000m, diameter 0.035mm, as drawn, 99.95%

GF09283440

Molybdän, rod, 150mm, diameter 5.0mm, 99.98%

GF51626831

Molybdän, rod, 100mm, diameter 2.0mm, centerless ground, 99.9%

GF09760192

Molybdän, wire reel, 50m, diameter 0.025mm, hard, 99.95%

GF17537812

Molybdän, foil, 8mm disks, thickness 0.007mm, 99.9%