Ionic Balance

Scope of Application:
The Ionic Balance Method is essentially a calculation carried out using the results of 10 individual analyses.  The methods for these analyses therefore form part of the Ionic Balance Method.  The parameters analysed for are:
Alkalinity    Nitrate
Sulphate    Nitrite
Sodium      Potassium
Calcium     Magnesium    
pH             Conductivity
Chloride
Others    

The method is applicable to water and effluent matrices.

Technique:    
TitrimetryIon Chromatography, Conductivity probe, ICP-MS

Reference method:    
SCA method,The Examination of Waters and Associated MaterialsUSEPA Method 9056, 6020

Limit of Detection:
Alkalinity as CaCO3 2 mg/L
Chloride 0.1mg/L
Sulphate 0.05 mg/L
Nitrate 0.01 mg/L
Nitrite 0.02mg/L
Sodium 0.2 mg/L
Potassium 0.2 mg/L
Calcium 0.2 mg/L
Magnesium 0.2 mg/L

Sample required:        
Waters : 500ml     

           
Container:
Poly

Notes:
1. MDLs may be affected by sample matrix interferences, dilutions
2. The list of determinands may vary: call to confirm.