The LOD and LOQ were determined according to IUPAC recommendations
[40]: LOD=3 (s/S), and LOQ=10 (s/S), where s is the
standard deviation of measurements of the blank (n=10), and S is
the slope of the linear dynamic range. The LOD and LOQ were
4.9×10−4 mol L−1 and 1.62×10−3 mol L−1, respectively.
Precision is expressed as the relative standard deviation (RSD) of an
analytical response. In order for a method to be considered precise, the
RSD should be less than 2.0%. Here, the precision of the technique was
assessed by repetition of points of the analytical curve at different
times on one day (intra-day), and on different days (inter-day). The coefficients
of variation obtained were 1.8% and 1.1%, respectively.
The LOD and LOQ were determined according to IUPAC recommendations[40]: LOD=3 (s/S), and LOQ=10 (s/S), where s is thestandard deviation of measurements of the blank (n=10), and S isthe slope of the linear dynamic range. The LOD and LOQ were4.9×10−4 mol L−1 and 1.62×10−3 mol L−1, respectively.Precision is expressed as the relative standard deviation (RSD) of ananalytical response. In order for a method to be considered precise, theRSD should be less than 2.0%. Here, the precision of the technique wasassessed by repetition of points of the analytical curve at differenttimes on one day (intra-day), and on different days (inter-day). The coefficientsof variation obtained were 1.8% and 1.1%, respectively.
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