Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

SI Units: 2019 Redefinition01:13

SI Units: 2019 Redefinition

3.3K
Measurement is an indispensable part of analytical chemistry. The result of measurement helps quantify a substance's physical property and compare it with the physical property of another substance. Each measurement comprises two components - a number indicating the magnitude and a unit of measurement as a standard for comparison. Further, the same quantity can be measured using different units of measurement, which leads to differences in magnitude.
A standard set of units has been defined...
3.3K
Atomic Absorption Spectroscopy: Lab01:21

Atomic Absorption Spectroscopy: Lab

1.0K
For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
 Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
1.0K
Units and Standards of Measurement01:10

Units and Standards of Measurement

44.2K
A physical quantity is defined either by specifying its measurement method or by stating how it is calculated from other measurements. For example, consider a metallic cube. We might define its mass and dimensions by specifying methods for measuring them, such as using a weighing machine and a meter scale. Then, we could define the volume by stating that it is the cube of its side, and we could calculate the density as the mass divided by the volume.
Measurements of physical quantities are...
44.2K
Standard Solutions01:14

Standard Solutions

2.3K
Standard solutions refer to solutions with a precisely known concentration or composition. A primary standard is a highly pure, high molar mass, stable substance that is entirely soluble in water, the most commonly used solvent in analytical chemistry. The primary standard solution can be used to standardize secondary standards, which are substances with known concentrations but are less pure and stable. Standard solutions are essential for achieving accurate and reliable results in analytical...
2.3K
Measurement: Standard Units03:38

Measurement: Standard Units

77.9K
Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
77.9K
Stratified Sampling Method01:16

Stratified Sampling Method

14.5K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a stratified sample, divide the population into groups called strata and then take a...
14.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Activity standardization and determination of the half-life of Tb-161.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same author

Measurement of the activity and determination of the half-life of <sup>225</sup>Ac at POLATOM.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2023
Same author

Activity standardization and half-life measurement of <sup>177</sup>Lu.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2023
Same author

Development of Poland's Central Bone Marrow Donor Registry Affects Donor Searches for Patients With Hematological Diseases.

Transplantation proceedings·2022
Same author

Three-dimensional high-resolution anorectal manometry in children after surgery for anorectal disorders.

European review for medical and pharmacological sciences·2021
Same author

A nearby transiting rocky exoplanet that is suitable for atmospheric investigation.

Science (New York, N.Y.)·2021
Same journal

Effect of BaO-TiO<sub>2</sub> compositional variation on radiation shielding properties of borate-based glasses: A computational and simulation study.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same journal

Habitat heterogeneity analysis of planning CT improves the prediction of radiation proctitis in cervical cancer: A multimodal machine learning study.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same journal

Molecular plating for targetry: proof of concept using <sup>nat</sup>Gd(p,x)<sup>155</sup>Tb cross section measurements.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same journal

Investigation of proton spallation effect on Electron Emission Coefficient electrodes coated with metamaterial.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same journal

An algorithm to calculate physical density of biomedical objects having 3 ≤ Z<sub>eff</sub> ≤ 20: an application study using clinical photon-counting computed tomography equipment.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same journal

Comprehensive evaluation of Gd<sub>2</sub>O<sub>3</sub> reinforced polyhydroxybutyrate as a hybrid neutron-gamma shielding material: Spatial dose mapping, photon buildup factors and neutron capture performance under primary and secondary radiation.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
See all related articles

Related Experiment Video

Updated: Jan 16, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

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

12.7K

Activity standardization of 47Sc by LS methods.

J Marganiec-Gałązka1, N Lisowska1, A Kamiński1

  • 1National Centre for Nuclear Research, Radioisotope Centre POLATOM, Andrzeja Sołtana 7, 05-400, Otwock, Poland.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|October 2, 2025
PubMed
Summary
This summary is machine-generated.

This study determined the activity of a scandium-47 solution using three liquid scintillation methods. The measurements yielded consistent results, establishing a final relative uncertainty of 0.40% for scandium-47 activity.

Keywords:
4πβ(LS)–γ coincidence methodActivity standardizationCIEMAT-NIST methodRadionuclide (47)ScTDCR method

More Related Videos

Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes
04:40

Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes

Published on: July 7, 2023

3.1K
Standardization of Transfer across Labs between Flow Cytometers for Detection of Lymphocytes in Japanese Encephalitis Vaccinated Children
06:22

Standardization of Transfer across Labs between Flow Cytometers for Detection of Lymphocytes in Japanese Encephalitis Vaccinated Children

Published on: February 10, 2023

1.3K

Related Experiment Videos

Last Updated: Jan 16, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

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

12.7K
Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes
04:40

Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes

Published on: July 7, 2023

3.1K
Standardization of Transfer across Labs between Flow Cytometers for Detection of Lymphocytes in Japanese Encephalitis Vaccinated Children
06:22

Standardization of Transfer across Labs between Flow Cytometers for Detection of Lymphocytes in Japanese Encephalitis Vaccinated Children

Published on: February 10, 2023

1.3K

Area of Science:

  • Nuclear physics
  • Radiochemistry
  • Metrology

Background:

  • Accurate activity determination is crucial for radioisotope applications.
  • Scandium-47 (Sc-47) is a promising radionuclide for targeted radiopharmaceutical therapy.
  • Standardization of Sc-47 activity is essential for its clinical use.

Purpose of the Study:

  • To determine the activity concentration of a scandium-47 (Sc-47) solution.
  • To compare the performance of different liquid scintillation counting techniques for Sc-47.
  • To establish a reliable activity value with low uncertainty for Sc-47.

Main Methods:

  • Activity concentration measurement of Sc-47 using 4πβ(LS)-γ coincidence counting.
  • Activity concentration measurement using the triple-to-double coincidence ratio (TDCR) method.
  • Activity concentration measurement employing the CIEMAT/NIST liquid scintillation counting method.

Main Results:

  • All three liquid scintillation methods provided consistent results for the Sc-47 activity concentration.
  • The measurements achieved a high level of agreement between the different techniques.
  • The final relative uncertainty for the determined Sc-47 activity was 0.40%.

Conclusions:

  • The employed liquid scintillation methods are suitable for accurate Sc-47 activity determination.
  • The consistent results validate the reliability of the measurements.
  • The low uncertainty achieved supports the use of this Sc-47 solution as a standard.