Investigation of How Temperature and Holding Time Affect the Concentration of Perchloroethylene in Water Quality Samples

Abstract

Water samples collected to determine the presence and concentration of volatile organic compounds (VOCs) are required to meet specific preservation criteria while being transported to an analytical laboratory for analysis. EPA Method 524.2 establishes that water samples collected for VOC analysis be maintained at a holding temperature of less than 4C for a maximum of 14 days (33). If such criteria are not met, then the samples become invalid. The purpose of this study was to determine differences in the concentration of a selected VOC, PERC, in water samples when the storage temperature and holding times outlined in EPA Method 524.2 (less than 4C and not more than 14days) are modified.

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Document Details

Document Type
Technical Report
Publication Date
Jun 19, 2020
Accession Number
AD1182840

Entities

People

  • Roberto Sanchez Perez

Organizations

  • Uniformed Services University of the Health Sciences

Tags

DTIC Thesaurus Topics

  • Acids
  • Afghanistan Conflict
  • Biostatistics
  • Buffers (Chemistry)
  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Digestive System Processes
  • Environmental Protection
  • Information Science
  • Organic Compounds
  • Physical Properties
  • Public Health
  • Regression Analysis
  • Statistical Analysis
  • United States
  • Volatile Organic Compounds

Readers

  • Analytical Chemistry
  • Software Engineering
  • Thermal Physics or Thermal Science.