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

Sample Preparation for Analysis: Overview01:21

Sample Preparation for Analysis: Overview

Sample preparation is an essential step in the analytical process. It involves preparing a sample so that it can be analyzed accurately. The goal is to extract the analyte, the substance you want to measure, from the sample while removing any components that may interfere with the analysis. Sample preparation techniques vary depending on the physical state of the sample.
Bulk or large solid samples are typically reduced in size using grinding, crushing, or milling techniques to increase the...
Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Sampling Theorem01:15

Sampling Theorem

In signal processing, the analysis of continuous-time signals, denoted as x(t), often involves sampling techniques to convert these signals into discrete-time signals. This process is essential for digital representation and manipulation. A critical component in sampling is the train of impulses, characterized by the sampling interval and the sampling frequency. The relationship between these parameters and the original signal's properties dictates the success of the sampling process.
Mass Analyzers: Overview01:13

Mass Analyzers: Overview

The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
Transformation01:26

Transformation

Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...

You might also read

Related Articles

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

Sort by
Same author

OECD principles of GLP: what is working and what needs work.

Annali dell'Istituto superiore di sanitaยท2009
See all related articles

Related Experiment Video

Updated: May 27, 2026

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization
08:27

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization

Published on: July 27, 2021

Incurred sample reanalysis: a global transformation.

Chidambaram T Viswanathan1

  • 11CT Viswanathan & Associates Inc, Rockville, MD 20855, USA. vishct@gmail.com

Bioanalysis
|December 6, 2011
PubMed
Summary

Incurred sample reanalysis (ISR) ensures reliable pharmacokinetic and bioequivalence study results. This article reviews ISR history, current practices, and regulatory harmonization implications.

Area of Science:

  • Pharmacokinetics
  • Bioequivalence Studies
  • Preclinical Safety

Background:

  • Incurred sample reanalysis (ISR) is a critical component in bioanalytical studies.
  • Reproducibility demonstrated by ISR validates methods and ensures dependable results.
  • The pharmaceutical industry has proactively adopted ISR practices.

Purpose of the Study:

  • To discuss the historical development and current practices of ISR.
  • To examine the implications of recent EMA guidelines on ISR.
  • To explore the globalization and harmonization of ISR regulations.

Main Methods:

  • Review of ISR history and industry adoption.
  • Description of current ISR practices in bioanalytical laboratories.
  • Analysis of EMA guidelines and their global impact.

More Related Videos

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils
09:16

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

Related Experiment Videos

Last Updated: May 27, 2026

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization
08:27

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization

Published on: July 27, 2021

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils
09:16

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

Main Results:

  • ISR is fundamental for validating pharmacokinetic, bioequivalence, and preclinical safety studies.
  • Industry-wide awareness and implementation of ISR are recognized.
  • Recent EMA guidelines are poised to influence global ISR regulatory harmonization.

Conclusions:

  • ISR is essential for data integrity in drug development.
  • Harmonization of ISR regulations is crucial for global drug development.
  • The evolution of ISR practices supports regulatory compliance and scientific rigor.