Question

A series of baseline measurements using a blank produced the following data, 0.001 0.007 and 0.011. What would be the response of a 25 ppm standard if the detection limit for the method 2 ppm?

Answer 1

The response of a 25 ppm standard can be calculated by subtracting the detection limit from each baseline measurement.

Step-by-step explanation:

The response of a 25 ppm standard would be calculated by determining the difference between the baseline measurements and the detection limit. In this case, the detection limit is 2 ppm and the baseline measurements are 0.001, 0.007, and 0.011. To calculate the response, subtract the detection limit from each baseline measurement:

Response = Baseline measurement - Detection limit

Response = 0.001 - 2 = -1.999 ppm

Response = 0.007 - 2 = -1.993 ppm

Response = 0.011 - 2 = -1.989 ppm

The response of the 25 ppm standard would be approximately -1.999 ppm, -1.993 ppm, and -1.989 ppm, respectively. This indicates that the standard has a lower concentration than the detection limit.