follow the instructions on the picture. please answer completely. Molecular abso
ID: 817493 • Letter: F
Question
follow the instructions on the picture. please answer completely.
Molecular absorption spectroscopy yielded the melatonin concentrations in the table below The data in the table was fitted with linear least squares regression The regression model is A = 0.0863(plusminus0.0040) + 0.0701(plusminus0.0007)cm where A is the absorbance and cM Is the melatonin concentration The errors in the model are expressed as one standard deviation in the parameter, What are the calibration sensitivity and analytical sensitivity of the analysis? What is the blank signal? What is the detection limit of the method What is the highest probability that a signal detections limit is generated from the statistical fluctuation of blank signal? The total probability between 3 standard deviations and +3 standard deviations is 0.99730.Explanation / Answer
calibration sensitivity=(1-0.0004/0.0863)*100
= 99.5365%
and analytical sensitivity of the anlysis is
(1-0.007/0.701)*100
=99.001%
b).0.082
c).detection limit is 0.7983
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