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Headspace single drop microextraction based visual colorimetry for highly sensitive, selective and matrix interference-resistant determination of sulfur dioxide in food samples

Food ChemistryEngineeringAnalytical InstrumentationEnvironmental EngineeringSpectroscopyBioanalysisColorimetryVisual ColorimetryAnalytical ChemistryMatrix Interference-resistant DeterminationSulfur DioxideSpectrochemical Analysis