BACKGROUND: This study introduces a phase-transfer headspace strategy to establish an efficient and innovative method for quantifying potassium bromate in flour. The method involves detecting carbon dioxide produced from the gas-producing reaction of potassium bromate in flour with oxalate. The carbon dioxide produced is quantitatively analyzed using gas chromatography (GC) in a sealed vial. RESULTS: The study showed that the new technique was very precise (relative standard deviation ≤3.18%) and accurate (relative differences ≤5.37%) for pot...
