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High-Performance Liquid Chromatography: Types of Detectors01:15

High-Performance Liquid Chromatography: Types of Detectors

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 properties and...

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Related Experiment Video

Updated: Jul 2, 2026

Radiolabeling and Quantification of Cellular Levels of Phosphoinositides by High Performance Liquid Chromatography-coupled Flow Scintillation
10:52

Radiolabeling and Quantification of Cellular Levels of Phosphoinositides by High Performance Liquid Chromatography-coupled Flow Scintillation

Published on: January 6, 2016

(6)Li-loaded liquid scintillators with pulse shape discrimination.

L R Greenwood1, N R Chellew, G A Zarwell

  • 1Chemical Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439.

The Review of Scientific Instruments
|April 1, 1979
PubMed
Summary

New liquid scintillators with high lithium-6 loading offer excellent pulse height and shape discrimination for neutron detection. This toluene-methanol system shows improved performance and stability over previous dioxane-water formulations.

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Last Updated: Jul 2, 2026

Radiolabeling and Quantification of Cellular Levels of Phosphoinositides by High Performance Liquid Chromatography-coupled Flow Scintillation
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Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

Area of Science:

  • Nuclear Physics
  • Materials Science
  • Scintillation Detection

Background:

  • Liquid scintillators are crucial for detecting neutrons.
  • Previous formulations faced limitations in lithium-6 loading and operational stability.
  • Boron-10 loaded liquids are a common alternative but have lower light output.

Purpose of the Study:

  • To develop a high-performance liquid scintillator with enhanced lithium-6 loading.
  • To evaluate the pulse height and pulse shape discrimination capabilities of the new formulation.
  • To assess the stability and light output of the scintillator for neutron detection.

Main Methods:

  • Dissolving lithium-6 salicylate in a toluene-methanol solvent system.
  • Incorporating naphthalene and 9,10 diphenylanthracene as solutes.
  • Preparing large-volume scintillator cells (up to 5 cm diameter, 15.2 cm deep).
  • Evaluating pulse height and pulse shape discrimination performance.
  • Comparing performance against dioxane-water systems and boron-10 loaded liquids.

Main Results:

  • Achieved excellent pulse height and pulse shape discrimination with up to 10 wt.% lithium-6 loading.
  • Demonstrated improved performance at higher lithium-6 concentrations compared to dioxane-water systems.
  • Confirmed stability at temperatures as low as -10 degrees C.
  • Observed higher light output for slow neutron detection than boron-10 loaded liquids.

Conclusions:

  • The developed toluene-methanol based liquid scintillator offers superior performance for neutron detection with high lithium-6 loading.
  • This formulation provides enhanced stability and light output, making it a promising alternative for various applications.
  • Further neutron efficiency calculations are presented to support the findings.