Current advances and applications of online sample preparation techniques for miniaturized liquid chromatography systems

Autor(es)

Cruz, Jonas Carneiro ; de Souza, Israel Donizeti ; Lancas, Fernando Mauro ; Costa Queiroz, Maria Eugenia

• Tipo de documento: Artigo Científico
• Fonte: Journal of Chromatography A; v. 1668, p. 16-pg., 2022-04-12.

Resumo

Miniaturized liquid chromatography (LC) has been recognized as one of the most important analytical methods in several research fields. Reduced analytical work-scale provides superior chromatographic resolution and decreases sample and organic solvent consumption. However, frequent clogging of tubing connections and use of small sample volumes are significant limitations when high throughput and sensitive analyses are required. Effective sample preparation could help to overcome these limitations. Online coupling of sample preparation techniques (such as column switching and in-tube solid-phase microextraction) with these miniaturized systems may result in more sensitive and reproducible analyses, improving analytical efficiency. This review describes the most common online miniaturized LC configurations, and the main applications of current online sample preparation techniques coupled to miniaturized LC systems in the bioanalytical, omics, and environmental areas. Relevant features, and challenges of these systems, and innovative sorbents, including restricted access materials, monoliths, and immunosorbents is also discussed. (c) 2022 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 19/19485-0 - Desenvolvimento de fibras de nitinol revestidas com líquidos iônicos poliméricos zwiteriônicos para a determinação de beta-amilóides em amostras de plasma de pacientes com doença de Alzheimer através do acoplamento direto fiber-in-tube SPME e MS/MS
• Beneficiário: Israel Donizeti de Souza
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/02147-0 - Cromatografia líquida em uma gota e seu acoplamento com espectrometria de massas: estratégias instrumentais, desenvolvimento de materiais, automatização e aplicações analíticas
• Beneficiário: Fernando Mauro Lanças
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 20/00126-8 - Desenvolvimento de métodos de microextração hifenados à LC-MS/MS ou diretamente à MS/MS para a determinação de biomarcadores em amostras biológicas de pacientes ou de ratos com doenças neurodegenerativas
• Beneficiário: Maria Eugênia Queiroz Nassur
• Modalidade de apoio: Auxílio à Pesquisa - Regular