1 answer

Copper is requested to be determined. The signal intensity of the blind solution at 216.6 nm...

Question:

Copper is requested to be determined. The signal intensity of the blind solution at 216.6 nm is measured as 0.2 units and the same solution intensity of 1.00 ppm copper solution is measured as 18.4 units. According to the value of 12.7 units, if the cause of the solution whose copper concentration we are analyzing is unknown, how many ppm is the copper concentration it contains? (20p)

Answers

Ploting absorption vs concentration we get a straight line.

From the plot we can calculate the concentration at any point.

Please find the answer in the following picture.

.

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