3) Limit of Detection (LoD) and Limit of Quantification (LoQ)

The calibration shown in question 2 was gained by using 6 concentrations for each technique. The blank was then analysed 10 times. You are provided with the mean and standard deviation of the blank. The equation of the calibration line is provided in question 2. Calculate the limit of detection (LoD) and limit of quantification (LoQ) for each technique. Justify the method used as part of your answer. .

ICP-OES

Blank Mean = 2.012

SD = 0.166

ICP-MS

Blank Mean = 5.656

SD = 0.098

Comment on the LoD and LoQs obtained for this determination