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Propagation of systematic errors

The absorbance, A, of a solution is given by A = -log T where T is the transmittance. If the measured value of T is 0.501 with a standard deviation of 0.001, calculate A and its standard deviation. [Pg.35]

It is interesting to note that for this widely used experimental method we can also find the conditions for which the relative standard deviation is a minimum. The relative standard deviation (r.s.d.) of A is given by  [Pg.35]

Differentiation of this expression with respect to T shows that the r.s.d. of A is a minimum when T=lle = 0.368. [Pg.35]

The rules for the combination of systematic errors can also be divided into three groups. [Pg.35]

Remember that the systematic errors are either positive or negative and that these signs must be included in the calculation of Ay. [Pg.36]


See other pages where Propagation of systematic errors is mentioned: [Pg.52]    [Pg.35]    [Pg.35]   


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