A new approach for sulfite determination by headspace liquid-phase microextraction with an optical probe
Arina Skok, Andriy B. Vishnikin, Yaroslav Bazeľ
Abstract
An optical probe is immersed into a plastic vial fixed in the headspace. Sulfur dioxide is released from a sample containing sulfite by acidification. An aqueous solution of 5,5′-dithiobis-(2-nitrobenzoic) acid is used as an extractant.
Topics & Concepts
SulfiteDetection limitAbsorbanceChemistryAnalyteChromatographyCalibration curveAnalytical Chemistry (journal)Extraction (chemistry)Aqueous solutionAcceptorDTNBInorganic chemistryOrganic chemistryPhysicsEnzymeCondensed matter physicsGlutathioneAnalytical chemistry methods developmentAdvanced Chemical Sensor TechnologiesSulfur Compounds in Biology