Conteudo Principal
essential guide services
Vale da Pedra Laboratory
Vale da Pedra Laboratory includes the same fields as Inorganic Chemistry, Organic Chemistry, Microbiology and Biology. Parameters are tested based on the following analytical techniques:
  • Classic cultural microbiology methods: no. of 37º C and 22º C clusters, Coliform bacteria, E. coli, Faecal coliform, Enterococos, Clostridium perfringens, Pseudomonas aeruginosa, Sulphite-reducing anaerobes, Coagulase-positive staphylococci, Coagulase-negative staphylococci, and Total staphylococci
  • Identifying and quantifying the phytoplankton and determining the phytoplanktonic biovolume by means of an inverted microscope
  • Determining the Smell and Flavour of water samples through successive dilutions
  • Determining the Colour, Free chlorine, Chlorophyll-a and phaeopigments, Aluminium, Nitrites, Phosphate, Ammoniacal Nitrogen, and Silica through molecular absorption spectrophotometry
  • Determining Sodium, Potassium, Calcium, Magnesium, Fluorides, Chlorides, Nitrates, Sulphates, Bromides, Chlorate, and Chlorites using ion chromatography
  • Determining THM and other alkyl halides using gas chromatographic analysis
  • Carrying out several determinations by means of classic chemistry analytical techniques like acid-base titration, oxidation-reduction titration, complexometry, and gravimetric methods, among others

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