3. Results and discussion
3.1. Optimization of the HR-CS F AAS method
The HR-CS F AAS technique makes possible that in one run, major
and minor elements can be determined sequentially using a single
sample dilution. The possibility of sequential multi-element determination
by atomic absorption spectrometry came as an alternative
because of the use of a single lamp for all elements and the versatility
of the software to operate the experimental conditions. All elements
are determined at optimized conditions, automatically adjusted by the
software of the equipment or manually by the operator. Another
advantage of HR-CS F AAS is the possibility to use secondary lines
without deterioration of the SNR. In addition, the number of pixels can
be adjusted to increase or decrease the sensitivity. These advantages
permit samples with significantly different analyte concentrations to
be evaluated without further dilution.
The flow injection valve SFS 6 is a special feature in this work. This
accessory controls the solution injection, changing from sample to
water and back, avoiding variations in the flame temperature, as no air
3. Results and discussion
3.1. Optimization of the HR-CS F AAS method
The HR-CS F AAS technique makes possible that in one run, major
and minor elements can be determined sequentially using a single
sample dilution. The possibility of sequential multi-element determination
by atomic absorption spectrometry came as an alternative
because of the use of a single lamp for all elements and the versatility
of the software to operate the experimental conditions. All elements
are determined at optimized conditions, automatically adjusted by the
software of the equipment or manually by the operator. Another
advantage of HR-CS F AAS is the possibility to use secondary lines
without deterioration of the SNR. In addition, the number of pixels can
be adjusted to increase or decrease the sensitivity. These advantages
permit samples with significantly different analyte concentrations to
be evaluated without further dilution.
The flow injection valve SFS 6 is a special feature in this work. This
accessory controls the solution injection, changing from sample to
water and back, avoiding variations in the flame temperature, as no air
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