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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then passed on to...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

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Related Experiment Video

Updated: Jun 3, 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

Mixture quantification using PLS in plastic scintillation measurements.

H Bagán1, A Tarancón, G Rauret

  • 1Departament de Química Analítica, Universitat de Barcelona, Spain.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|March 18, 2011
PubMed
Summary
This summary is machine-generated.

Plastic scintillation (PS) combined with Partial Least Squares (PLS) effectively quantifies alpha and beta emitters in mixtures. This method avoids mixed waste and reduces measurement time, offering a practical alternative to liquid scintillation.

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High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
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Radiolabeling and Quantification of Cellular Levels of Phosphoinositides by High Performance Liquid Chromatography-coupled Flow Scintillation
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Radiolabeling and Quantification of Cellular Levels of Phosphoinositides by High Performance Liquid Chromatography-coupled Flow Scintillation

Published on: January 6, 2016

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Area of Science:

  • Radiochemistry
  • Analytical Chemistry
  • Environmental Monitoring

Background:

  • Liquid scintillation (LS) is commonly used for detecting alpha and beta emitters but generates mixed waste.
  • Plastic scintillation (PS) offers a waste-reducing alternative for radioactivity measurements.
  • Quantifying mixed emitters using PS requires advanced calibration techniques.

Purpose of the Study:

  • To evaluate the capability of plastic scintillation (PS) combined with multivariate calibration (Partial Least Squares; PLS) for detecting and quantifying alpha and beta emitters in mixtures.
  • To demonstrate the advantages of PS over LS, specifically its non-production of mixed waste.
  • To optimize the procedure for accurate quantification of ternary mixtures.

Main Methods:

  • Utilized plastic scintillation (PS) detectors for radioactivity measurements.
  • Employed multivariate calibration, specifically Partial Least Squares (PLS) algorithms (PLS1 and PLS2).
  • Optimized procedure by evaluating net vs. sample spectra and Pulse Shape Analysis (PSA) parameter variations.

Main Results:

  • Successfully quantified ternary mixtures of alpha and beta emitters ((241)Am, (137)Cs, and (90)Sr/(90)Y).
  • Achieved relative errors less than 10% in most cases using PS+PLS2 applied to sample spectra.
  • Demonstrated that Pulse Shape Analysis (PSA) is not required for accurate quantification.

Conclusions:

  • Plastic scintillation combined with PLS2 is a viable method for quantifying mixed alpha and beta emitters.
  • This PS+PLS2 approach offers reduced measurement time and eliminates the need for blank measurements.
  • The method is advantageous as it does not require detectors with Pulse Shape Analysis capabilities and avoids mixed waste generation.