How do you divide hundreds ÷ hundreds

Step-by-step explanation:

From the given information:

The mean of the readings is:

= 157.1

The standard deviation (SD) can be computed by using the expression:

Standard deviation = 28.195

∴

FOr the EDTA complexes;

The signal detection limit = (3*SD) +

= (3*28.195) + 50

= 84.585 + 50

= 134.585

We need to point out that the value of the calibration curve given is too vague and it should be (1.75 x 10^9 M^-1) as oppose to  (1.75 x 10^-9 M^-1)

The concentration of detection limit is:

The lower limit of quantification is: