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Related Concept Videos

High-Performance Liquid Chromatography: Introduction01:11

High-Performance Liquid Chromatography: Introduction

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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.
In HPLC, two phases play a critical role in the separation process:
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High-Performance Liquid Chromatography: Instrumentation00:57

High-Performance Liquid Chromatography: Instrumentation

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High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
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High-Performance Liquid Chromatography: Types of Detectors01:15

High-Performance Liquid Chromatography: Types of Detectors

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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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High-Performance Liquid Chromatography: Elution Process01:05

High-Performance Liquid Chromatography: Elution Process

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In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
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Principles Of Column Chromatography01:13

Principles Of Column Chromatography

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The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...
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Silica Gel Column Chromatography: Overview01:10

Silica Gel Column Chromatography: Overview

1.0K
Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
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Post Column Derivatization Using Reaction Flow High Performance Liquid Chromatography Columns
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Post Column Derivatization Using Reaction Flow High Performance Liquid Chromatography Columns

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Liquid Chromatography Column Screening for the Analysis of Corrosion Inhibitor Molecules Using Derringer Desirability

L Furno1,2, A Combès1, D Thiébaut1

  • 1Laboratoire Sciences Analytiques, Bioanalytiques et Miniaturisation (LSABM), UMR CBI 8231 CNRS - ESPCI Paris PSL, Paris, France.

Journal of Separation Science
|December 9, 2024
PubMed
Summary

Developing a robust liquid chromatography method for analyzing diverse corrosion inhibitors (CIs) in the oil and gas sector was achieved. The Acquity Premier HSS T3 column demonstrated superior performance for comprehensive CI analysis.

Keywords:
Derringer desirability functionsadsorptioncolumn screeningcorrosion inhibitorsstationary phases

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Area of Science:

  • Analytical Chemistry
  • Chromatography
  • Oil and Gas Industry Applications

Background:

  • Corrosion inhibitors (CIs) are crucial in the oil and gas industry.
  • Analyzing a wide range of CIs using a single method presents significant challenges.
  • Existing analytical methods may lack the versatility to cover diverse CI chemistries.

Purpose of the Study:

  • To develop a universal liquid chromatography (LC) method for analyzing various corrosion inhibitors.
  • To screen and evaluate multiple RPLC and mixed-mode columns for optimal CI separation.
  • To identify critical column characteristics for effective CI analysis.

Main Methods:

  • Column screening across eight different RPLC and mixed-mode columns.
  • Testing with seven model mixtures representing common corrosion inhibitor classes (quaternary ammoniums, imidazolines, phosphoric esters).
  • Utilizing Derringer desirability functions to select the best-performing column for overall analysis.

Main Results:

  • Each tested column exhibited distinct separation capabilities and peak characteristics.
  • Minimizing residual silanol effects was identified as a key factor for improved separation.
  • Acquity Premier HSS T3 column, featuring advanced protection technology, provided the best overall analytical performance.

Conclusions:

  • The Acquity Premier HSS T3 column is highly suitable for analyzing diverse corrosion inhibitors.
  • Optimized gradient conditions on this column enable effective separation of complex CI mixtures.
  • This developed LC method offers a versatile solution for corrosion inhibitor analysis in industrial settings.