3.2. Optimization of experimental conditions
Due to the numerous parameters to be optimized in
GFAAS, the a priori calculation of the limit of detection with
the use of L’vov equation is an interesting tool to optimize
spectroscopic and electrothermal parameters and data treatment
[21]. The mass detection limit for our Perkin–Elmer
apparatus is expressed by the following relation [18,19]:
mL = 3 × 0.046 × 10(−E/36) 1 √
54
m
QA
tint
10˜ABG
tint
+ 1
tboc
(1)
E is the parameter that is displayed on the Perkin–Elmer
4100ZL spectrometer; QA the integrated absorbance; m themass of analyte; tint the integration time; tboc the baseline offset
compensation time; ˜ABG the weighted mean background
absorption signal.