Ultrasensitive, simple and solvent-free micro-assay for determining sulphite preservatives (E220–228) in foods by HS-SDME and UV–vis micro-spectrophotometry

Author： Gómez-Otero E.   Costas M.   Lavilla I.   Bendicho C.  

Publisher： Springer Publishing Company

ISSN： 1618-2642

Source： Analytical and Bioanalytical Chemistry, Vol.406, Iss.8, 2014-03, pp. : 2133-2140

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