Pressurized liquid extraction of sulfite for quantitation by capillary zone electrophoresis.
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| Title: | Pressurized liquid extraction of sulfite for quantitation by capillary zone electrophoresis. |
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| Authors: | Gonçalves S; Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV-SC), Ministério da Agricultura e Pecuária, São José, Santa Catarina, Brazil.; Departamento de Química, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.; Instituto Catarinense de Sanidade Agropecuária (ICASA), Florianópolis, Santa Catarina, Brazil., Molognoni L; Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV-SC), Ministério da Agricultura e Pecuária, São José, Santa Catarina, Brazil.; Instituto Catarinense de Sanidade Agropecuária (ICASA), Florianópolis, Santa Catarina, Brazil., Daguer H; Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV-SC), Ministério da Agricultura e Pecuária, São José, Santa Catarina, Brazil., Ribeiro APF; Centro de Ciências Rurais, UFSC, Curitibanos, Santa Catarina, Brazil., Deolindo CTP; Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV-SC), Ministério da Agricultura e Pecuária, São José, Santa Catarina, Brazil.; Instituto Catarinense de Sanidade Agropecuária (ICASA), Florianópolis, Santa Catarina, Brazil., Vitali L; Departamento de Química, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil., Hoff R; Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV-SC), Ministério da Agricultura e Pecuária, São José, Santa Catarina, Brazil. |
| Source: | Electrophoresis [Electrophoresis] 2025 May; Vol. 46 (9-10), pp. 486-493. Date of Electronic Publication: 2024 Oct 29. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Wiley-VCH Country of Publication: Germany NLM ID: 8204476 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1522-2683 (Electronic) Linking ISSN: 01730835 NLM ISO Abbreviation: Electrophoresis Subsets: MEDLINE |
| Imprint Name(s): | Publication: Original Publication: [Weinheim, Germany] : Verlag Chemie, [1980- |
| MeSH Terms: | Sulfites*/analysis , Sulfites*/isolation & purification , Sulfites*/chemistry , Liquid-Liquid Extraction*/methods, Electrophoresis, Capillary/methods ; Reproducibility of Results ; Limit of Detection ; Animals ; Linear Models |
| Abstract: | Sulfite is an additive used in shrimp processing to prevent discoloration. However, sulfite can cause health issues for sensitive consumers, making its monitoring necessary. Determining sulfite concentrations is complex because the Monier-Williams reference method is laborious and has low analytical throughput. Additionally, new techniques are needed to stabilize sulfite during the extraction process because this analyte undergoes rapid oxidation. A new method involving extraction and derivatization of sulfite with formaldehyde through automated pressurized liquid extraction (PLE), followed by quantitation by capillary zone electrophoresis with diode-array detector in indirect mode, was developed and optimized using multivariate planning. The PLE procedure was compared to another solid-liquid extraction method. The new method successfully stabilized and extracted sulfite from shrimp in few steps with adequate precision (CV < 3.8%), producing extracts that were stable for 10 days. Recovery was satisfactory (97%-99%), and the limits of detection (4.6 mg kg -1 ) and quantitation (15.4 mg kg -1 ) were suitable for the intended purpose. (© 2024 Wiley‐VCH GmbH.) |
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| Grant Information: | CNPq-142228/2017-6 Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| Contributed Indexing: | Keywords: automated extraction; energized dispersive guided extraction (EDGE); hydroxymethylsulfonate; sample preparation |
| Substance Nomenclature: | 0 (Sulfites) |
| Entry Date(s): | Date Created: 20241029 Date Completed: 20250718 Latest Revision: 20250718 |
| Update Code: | 20250718 |
| DOI: | 10.1002/elps.202400115 |
| PMID: | 39470105 |
| Database: | MEDLINE |
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