[infinity1]

mL Working Standard
Std 1 = 0.2
Std 2 = 0.4
Std 3 = 0.6
Std 4 = 0.8
Std 5 = 1.0

Salicylate (mg/dL)
Std 1 = 10.0
Std 2 = 20.0
Std 3 = 30.0
Std 4 = 40.0
Std 5 = 50.0

Question is: what is the concentration of salicylate in the working standard?

How do I find this out when each standard is different?