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Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
[Detection of Sulfur Dioxide in Preserved Fruits with High Resolution Continuum Source Atomic Absorption Spectrometry
This study introduces a new method using high-resolution continuum source atomic absorption spectrometry to detect sulfur dioxide in preserved fruits. The technique offers accurate, rapid analysis with minimal interference, expanding atomic absorption spectrometry applications.
Area of Science:
- Analytical Chemistry
- Environmental Science
Background:
- Sulfur dioxide (SO2) is a common pollutant and its accurate quantification is crucial.
- Preserved fruits can contain SO2 residues, necessitating reliable detection methods.
Purpose of the Study:
- To develop and validate a novel method for detecting sulfur dioxide in preserved fruits.
- To optimize instrumental parameters for enhanced sensitivity and accuracy.
Main Methods:
- Utilized high-resolution continuum source atomic absorption spectrometry (HR-CS AAS).
- Transformed SO2 in preserved fruits to sulfate ions via acidity, distillation, and H2O2 oxidation.
- Optimized flame parameters and analyzed interferences from other sulfur species.
Main Results:
- Achieved a limit of detection of 52.4 mg·kg-1 at 257.961 nm.
- Demonstrated a relative standard deviation below 10% and average spiked recoveries between 85.7% and 115.7%.
- The method showed high accuracy, rapid analysis, and low interference.
Conclusions:
- The developed HR-CS AAS method is effective for accurate and rapid SO2 determination in preserved fruits.
- This research extends the application scope of atomic absorption spectrometry in food analysis.
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