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The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

Updated: May 12, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

I Schneweis1, K Meyer, G Engelhardt

  • 1Lehrstuhl für Tierhygiene, Wissenschaftszentrum Weihenstephan, 85354, Freising.

Mycotoxin Research
|April 23, 2013
PubMed
Summary
This summary is machine-generated.

Zearalenone and its metabolite zearalenone-4-β-D-glucopyranoside were detected in Bavarian wheat. A new LC-MS method quantified these mycotoxins, finding them in most samples.

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Area of Science:

  • Food safety and mycotoxicology
  • Analytical chemistry
  • Plant science

Context:

  • Mycotoxins like zearalenone pose risks to food safety.
  • Zearalenone-4-β-D-glucopyranoside is a metabolite of zearalenone.
  • Accurate quantification methods are crucial for monitoring contaminants.

Purpose:

  • To develop and validate a liquid chromatography-mass spectrometry (LC-MS) method for determining zearalenone and zearalenone-4-β-D-glucopyranoside.
  • To analyze Bavarian wheat samples for the presence and levels of these compounds.
  • To investigate the correlation between zearalenone and its glucoside metabolite.

Summary:

  • A sensitive LC-MS method was established using maize cell cultures for standard production.
  • The method detected zearalenone and zearalenone-4-β-D-glucopyranoside at 10 μg/kg with good recovery rates.
  • Analysis of 24 wheat samples revealed zearalenone in 92% and zearalenone-4-β-D-glucopyranoside in 42% of positive samples.

Impact:

  • Provides a reliable analytical tool for monitoring zearalenone and its glucoside in food commodities.
  • Highlights the prevalence of zearalenone and its metabolite in Bavarian wheat, informing risk assessment.
  • Demonstrates a significant correlation between the parent mycotoxin and its conjugated form in wheat.