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Related Concept Videos

Development of Analytical Methods01:21

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An analytical methodology can be divided into four sequential steps: technique, method, procedure, and protocol. A technique is a scientific principle that rationalizes a specific phenomenon through chemical measurements. Adapting a technique for analyzing a sample of interest is termed a method. The procedure outlines the directions for performing the analysis via an analytical method. The protocol is the detailed guidelines on the procedure, which should be strictly followed to obtain the...
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Chromatographic Methods: Terminology01:18

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Chromatography is an analytical technique widely used in fields such as chemistry, biology, environmental science, and pharmaceuticals to separate the components of a mixture and identify substances between them. The process of chromatography is based on the interactions between two distinct phases: the stationary phase and the mobile phase. The stationary phase is fixed in place by a supporting material, while the mobile phase moves over it, carrying the solutes. As the mobile phase travels,...
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Chromatographic Methods: Classification01:12

Chromatographic Methods: Classification

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Chromatographic techniques are classified in three ways: the classification is based on the physical state of the stationary and mobile phases, how the mobile phase and the stationary phase contact each other, or through the chemical or physical processes that isolate the components of the sample. Typically, the mobile phase is either a liquid or gas, while the stationary phase is either a solid or a liquid layer applied to a solid surface.
Chromatographic techniques are typically named by...
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High-Performance Liquid Chromatography: Introduction01:11

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High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
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High-Performance Liquid Chromatography: Types of Detectors01:15

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The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
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Ion-Exchange Chromatography01:09

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Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
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Chemometric-assisted method development in reversed-phase liquid chromatography.

R Cela1, E Y Ordoñez, J B Quintana

  • 1Department of Analytical Chemistry and Food Sciences, Institute of Research in Food Analysis, University of Santiago de Compostela, Santiago de Compostela, Spain. rafael.cela@usc.es

Journal of Chromatography. A
|August 21, 2012
PubMed
Summary
This summary is machine-generated.

Computer-assisted method development in liquid chromatography (LC) uses chemometrics and computing advances. While providing useful tools for procedure optimization and transfer, this approach is not yet fully satisfactory.

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Area of Science:

  • Analytical Chemistry
  • Chromatography
  • Chemometrics

Background:

  • Liquid chromatography (LC) is a widely used analytical technique in laboratories and industries.
  • Manual development of LC procedures is time-consuming and labor-intensive.
  • Advances in informatics and computing have enabled new approaches to LC method development.

Purpose of the Study:

  • To review the evolution and utility of computer-assisted method development in LC.
  • To describe chemometric tools available for computer-assisted LC.
  • To assess the current status and limitations of computer-assisted LC method development.

Main Methods:

  • Review of chemometric techniques applied to LC.
  • Discussion of informatics and computing advances in chromatography.
  • Analysis of commercial and academic tools for LC method development.

Main Results:

  • Computer-assisted LC development has yielded valuable tools for procedure optimization and transfer.
  • Chemometrics offers diverse options for computer-assisted LC.
  • Despite progress, the current computer-assisted approach has limitations.

Conclusions:

  • Computer-assisted method development significantly enhances LC procedure optimization and transfer.
  • Further advancements are needed to fully address the limitations of current computer-assisted LC approaches.
  • Chemometrics remains a key enabler for sophisticated LC method development.