Answers to Practice Problems:
1. y = 0.0583x + 0.0238
y = 5.83X10 -11 amp-L/mmol + 2.38X10-11 amp
2. x = 12.0 ppm
d = 0.10 ppm
RAD = 0.0083 = 8.3 ppt
s = 0.15 ~ 0.2 ppm
RSD = 0.0125 ~ 13 ppt
3. 4.25X10-2 ppm Ca
4. ~500 uL and 1.00 mL
5. 0.320% Mn