Analysis of water samples

Types of materials analysed include

  • aqueous samples with saline matrix
  • borehole monitor samples
  • environmental waters
  • ground waters
  • stream waters
  • synthetic and experimental fluids

The analytical techniques available are:

  • inductively coupled plasma-atomic emission spectromety (ICP-AES) for major and trace cations
  • ion chromatography (IC) for major and trace anions
  • organic carbon analyser for non-purgeable organic carbon (NPOC)
  • potentiometric titration for pH and alkalinity
  • potentiometry for electrical conductivity
ICP-AES used for analysis of water and contaminated soil samples.
Potentiometric titrator used for determination and pH and alkalinity

Chromatograph used for determination of anions
Organic carbon analyser

Analytical determinands

Cations Analytical method Comment   Anions Analytical method Comment
Al ICP-AES UKAS accredited   F- Ion chromatography UKAS accredited
As ICP-AES UKAS accredited   Cl- Ion chromatography UKAS accredited
B ICP-AES     NO2- Ion chromatography UKAS accredited
Ba ICP-AES UKAS accredited   Br- Ion chromatography UKAS accredited
Ca ICP-AES UKAS accredited   NO3- Ion chromatography UKAS accredited
Cd ICP-AES UKAS accredited   HPO42- Ion chromatography UKAS accredited
Co ICP-AES UKAS accredited   SO42- Ion chromatography UKAS accredited
Cr ICP-AES UKAS accredited   S2O32- Ion chromatography  
Cu ICP-AES UKAS accredited        
Fe ICP-AES UKAS accredited        
K ICP-AES          
Li ICP-AES          
Mg ICP-AES UKAS accredited        
Mn ICP-AES UKAS accredited   Analyte Analytical method Comment
Mo ICP-AES UKAS accredited   Fe(II) Automated colorimetry UKAS accredited
Na ICP-AES UKAS accredited   NPOC Organic carbon analyser  
Ni ICP-AES UKAS accredited   pH Potentiometric titration UKAS accredited
P ICP-AES UKAS accredited   HCO3- Potentiometric titration UKAS accredited
Pb ICP-AES UKAS accredited   Conductivity Potentiometric electrode  
S ICP-AES UKAS accredited   S2- Colorimetry Currently subcontracted
Sb ICP-AES     NH4+ Colorimetry Currently subcontracted
Se ICP-AES UKAS accredited        
Si ICP-AES UKAS accredited        
Sr ICP-AES UKAS accredited        
V ICP-AES UKAS accredited        
Zn ICP-AES UKAS accredited        

Contact

Please contact Dr Charles J B Gowing for further information