Abstract
A flow-injection method has been developed for the determination of total sulphite in wine samples. After hydrolysis of bound sulphite, sulphur dioxide is separated from the matrix by means of an in-line gas diffusion module. For detection indirect amperometry is used, with iodine as oxidizing reagent. The iodine can be generated in-line by merging and mixing iodate and iodide solutions, or alternatively, electrochemically from iodide. With the latter method the best results were obtained. The reproducibility of the peak heights is better than 2%. The linear range of the method can be regulated by adaptation of the current applied to generate the iodine reagent. Due to the low detection limits obtained (0.05 mg L−1), wine samples can be strongly diluted before injection, which makes the sample pretreatment fast and simple. Good agreement has been found with the results obtained for the total sulphite concentration in different wine samples by titration.
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References
Ough CS (1986) J Assoc Off Anal Chem 69:5–7
Ough CS, Amerine MA (1980) Methods for the analysis of musts and wines. Wiley, New York
Official Methods of Analysis (1984) 14th Ed., AOAC, Arlington (VA), USA
Beech FW, Burroughs LF, Timberlake CF, Whiting GC (1979) Bull OIV 52:1001–1022
Ough CS (1983) Sulfur dioxide and sulfite. In: Branen L, Davidson PM (eds) Antimicrobials in foods. Marcel Dekker, New York
Quattrucci E (1981) J Sci Food Agric 32:1141–1142
Linares P, Luque de Castro MD, Valcarcel M (1989) Anal Chim Acta 225:443–448
Bartroli J, Escalada M, Jiminez Jorquera C, Alonso J (1991) Anal Chem 63:2532–2535
Sullivan JJ, Hollingworth TA, Wekell MM, Newton RT, Larose JE (1986) J Assoc Off Anal Chem 69:542–546
Sullivan JJ, Hollingworth TA, Wekell MM, Meo VA, Etemad-Moghadam A, Phillips JG, Gump BH (1990) J Assoc Off Anal Chem 73:223–226
Burguera JL, Burguera M (1998) Anal Chim Acta 214:429–432
Huang YL, Kim JM, Schmid RD (1992) Anal Chim Acta 266:317–323
Matsumoto K, Matsubara H, Ukeda H, Osajima Y (1989) Agric Biol Chem 53:2347–2353
Fogg AG, Fernandez-Arciniega MA, Alonso RM (1985) Analyst 110:851
Granados M, Maspoch S, Blanco M (1986) Anal Chim Acta 179:445–451
Fogg AG, Guta CW, Chamsi AY (1987) Analyst 112:253–258
Kok WT, Halvax JJ, Frei RW (1986) J Chromatogr 352:27–33
Huang X, Kok WT (1991) J Liquid Chromatogr 14:2207–2221
Kok WT, Brinkman UAT, Frei RW (1984) Anal Chim Acta 162:19–32
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Thanh, N.T.K., Decnop-Weever, L.G. & Kok, W.T. Determination of sulphite in wine by flow injection analysis with indirect electrochemical detection. Fresenius J Anal Chem 349, 469–472 (1994). https://doi.org/10.1007/BF00322936
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DOI: https://doi.org/10.1007/BF00322936