0.250 L aqueous solution density 1.00 g/mL 13.7 μg pesticide ppm ppb

0.250 L aqueous solution density 1.00 g/mL 13.7 μg pesticide ppm ppb

 

 

0.250 L of aqueous solution with a density of 1.00 g/mL

containing 13.7 μg of pesticide

express the concentration of pesticide in ppm and ppb

 

---------------------------------------------------

 

용질의 g수 = (13.7 μg) (1 g / 10^6 μg) = 1.37×10^(-5) g

 

 

 

용액의 g수 = (0.250 L) (1000 mL / 1 L) (1 g/mL) = 250 g

 

 

 

ppm = (1.37×10^(-5) g) / (250 g) × 10^6 = 0.0548 ppm

( 참고 https://ywpop.tistory.com/2657 )

 

 

 

ppb = (1.37×10^(-5) g) / (250 g) × 10^9 = 54.8 ppb