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Chemistry, 20.10.2020 02:01 michaelcarroll4228

lam supposed to recover a 60.0 ppm (parts per million) concentration of matrix spike after running an assay (procedure). I ran the assay 4 times and got concentrations of 42.6 ppm, 43.5 ppm, 41.9 ppm, and 42.3 ppm. Are my results accurate? Precise? Why?

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