Inorganic phosphate is the bioavailable dissolved form of phosphorus.
Principle:
Filtered water sample is allowed to react with a mixed reagent of molybdate, ascorbic acid, and trivalent antimony. The molybdic acid formed is converted by the reducing agent to a blue-coloured complex which is spectrophotometrically measured at 882nm. APHA(2017,ISBN:9780875532875).
Usage
IP(std_cons, A1, A1_s, AB1, Ao)
Value
Inorganic Phosphate in Water(micro gm/L)
Arguments
std_cons
Standard concentration
A1
Absorbance of standard with reagent
A1_s
Absorbance of samples with reagent
AB1
Absorbance of distilled water and reagent
Ao
Absorbance of sample without NEED reagent
References
APHA, 2017. Standard methods for examination of water and wastewater, 23rd edn. APHA, AWWA, WPCF, Washington