mass spectral measurements were made on 10 replicate low concentration Ni-EDTA samples: 146.9 , 111.5 ,...

mass spectral measurements were made on 10 replicate low concentration Ni-EDTA samples: 146.9 , 111.5 , 125.7 , 140.7 , 109.7 , 179.1 , 130.7 , 135.3 , 124.7 , and 142.3 counts. Ten measurements of a blank had a mean measurement of 38.3 counts. A sample containing 2.00 μM Ni-EDTA gave a measurement of 1597 counts. Estimate the signal and detection limit for Ni-EDTA.

Expert Solution

queen_honey_blossom answered 1 year ago

Low concentrations of Ni-EDTA near the detection limit gave the following counts in a mass spectral...

Low concentrations of Ni-EDTA near the detection limit gave the following counts in a mass spectral measurement: 184, 148, 148, 148, 136, 170., 196, 152, 156, 175. Ten measurements of a blank had a mean of 45 counts. A sample containing 1.00 µM Ni-EDTA gave 1797 counts. (a) Find the mean. ___ counts (b) Find the standard deviation. ___ counts (c) Estimate the detection limit for Ni-EDTA. ___ counts ___ M

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