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Related Concept Videos

Size-Exclusion Chromatography01:08

Size-Exclusion Chromatography

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In size-exclusion chromatography (SEC), also known as molecular-exclusion or gel-permeation chromatography, molecules are separated based on their sizes. This technique is important for separating large molecules such as polymers and biomolecules. The two classes of micron-sized stationary phases encountered in SEC are silica particles and cross-linked polymer resin beads. Both materials are porous, but their pore sizes vary significantly.
Silica particles offer advantages such as rigidity,...
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Sample Preparation for Analysis: Overview01:21

Sample Preparation for Analysis: Overview

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Sample preparation is an essential step in the analytical process. It involves preparing a sample so that it can be analyzed accurately. The goal is to extract the analyte, the substance you want to measure, from the sample while removing any components that may interfere with the analysis. Sample preparation techniques vary depending on the physical state of the sample.
Bulk or large solid samples are typically reduced in size using grinding, crushing, or milling techniques to increase the...
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Solid-phase microextraction: a fit-for-purpose technique in biomedical analysis.

Barbara Bojko1

  • 1Department of Pharmacodynamics and Molecular Pharmacology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Dr. A. Jurasza 2, 85-089, Bydgoszcz, Poland. bbojko@cm.umk.pl.

Analytical and Bioanalytical Chemistry
|May 23, 2022
PubMed
Summary
This summary is machine-generated.

Solid-phase microextraction (SPME) offers a simple, versatile platform for biological sample analysis, from single cells to organs. This minimally invasive technique captures elusive metabolites, complementing traditional methods and enabling rapid diagnostics.

Keywords:
BioanalysisBiomarkersDirect couplingMetabolomicsSolid-phase microextraction SPMEUnstable metabolites

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Area of Science:

  • Analytical Chemistry
  • Biomedical Analysis
  • Sample Preparation

Background:

  • Traditional sample preparation methods have limitations in analyzing complex biological matrices.
  • Solid-phase microextraction (SPME) presents unique advantages over conventional techniques.
  • SPME offers a versatile and minimally invasive approach for biological sample analysis.

Purpose of the Study:

  • To highlight the unique features and applications of SPME in biomedical analysis.
  • To discuss the challenges and future perspectives of SPME in this field.
  • To showcase SPME's ability to analyze diverse biological samples and capture elusive metabolites.

Main Methods:

  • Utilizing SPME for both headspace and direct immersion analysis of biological samples.
  • Employing flexible probe designs for analyzing objects of various sizes, from single cells to organs.
  • Interfacing SPME with analytical instrumentation for rapid diagnostic purposes.

Main Results:

  • SPME enables spatial and temporal monitoring of analytes and assessment of metabolome/lipidome changes.
  • SPME effectively captures a broader range of metabolites, including elusive species, complementing exhaustive methods.
  • The simplicity and flexibility of SPME facilitate its application across a wide scale of biological targets.

Conclusions:

  • SPME is a powerful, minimally invasive technique for comprehensive biological sample analysis.
  • SPME complements traditional methods by accessing a wider range of analytes and enabling rapid diagnostics.
  • Addressing SPME's limitations is crucial for its continued advancement in biomedical applications.