Sulphate (Spectrophotometric)
Technique:
Spectrophotometry
Reference method:
USEPA Method 375.4 and BS 1377
Method Detection Limits:
Waters: 5.0mg/L as SO4
Soils: 10mg/Kg as SO4
Sample required:
Waters: 50ml
Soils: 10g
Container:
Water: P.E.T.
Soil: Glass