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  • Concentration of ammonium nitrogen in water

    Photocolourimetric estimation (after F. Koroleff [Grasshoff, 1983]). Optical density vs. distilled water recorded at 630 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of chlorophyll a in water

    Chlorophyll a extraction from phytoplankton with ethanol.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of nitrate nitrogen in water

    Initial reduction with cadmium (after K. Grasshoff [Grasshoff, 1983]). Optical density vs. distilled water recorded at 543 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of nitrite nitrogen in water

    Photocolourimetric estimation (after K. Grasshoff [Grasshoff, 1983]). Optical density vs. distilled water recorded at 543 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of phosphate phosphorus in water

    Reduction principle after Murphy and Riley [Grasshoff, 1983]. Optical density vs. reference sample recorded at 885 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of silicate silica in water

    Photocolourimetric estimation (after F. Koroleff [Grasshoff, 1983]). Optical density vs. reference sample recorded at 810 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of total nitrogen in water

    Oxidated simulatenously with total phosphorous under pressure (after F.Koroleff [Grasshoff, 1983]). Optical density vs. distilled water recorded at 810 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concentration of total phosphorus in water

    Oxidated simulatenously with total nitrogen under pressure (after F.Koroleff [Grasshoff, 1983]). Optical density vs. distilled water recorded at 885 nm wavelength.

    • Organisational Unit: Latvian Institute of Aquatic Ecology - Latvia, Rīga
    • Price: Contract price
  • Concrete nondestructive testing with ultrasonic, Schmidt hammer etc.

    Work on site

    • Organisational Unit: Construction materials laboratory - Latvia, Rīga
    • Price: Contract price
  • Conducted emissions

    Accred­ited EMC test­ing, EMC pre-​compliance test­ing and EMC trou­bleshoot­ing to EMC com­pli­ance test­ing.

    • Organisational Unit: Latvian Electronic Equipment Testing Centre (LEITC) - Latvia, Rīga
    • Price: Contract price

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