If I use 0.5 g soil + 9 ml HNO3 + 3 ml HCI for microwave digestion. And I take only 5 ml of supertant from this digest and dilute it to 25 ml, by adding 5 ml of 5 % KI and 5 % ascorbic acid for decreasing of As (V) to As (III) and the rest (15 ml) distilled water.
What would be my WF, VF, CF and DF?
I know that : Actual Conc. = Conc.* VF * DF * (CF/WF)
for AAS, however I am confusing WF,VF,CF,DF during calculation.