Historical Accuracy Measurements of VOCs in Ambient Air Using Compendium Method TO14/15: Reference Samples, Canister Surrogates, and Greenhouse Gases

摘要

This paper focuses on the routine analytical accuracy measurements of volatile organic compounds (VOCs) which accompany every batch of ambient air canister samples analyzed in a single laboratory using Compendium Method TO14/15. These accuracy measurements include the analysis of QC reference samples, canister surrogate compounds, and a comparison of concentrations of several greenhouse gas VOC concentrations found in ambient air samples to their known global mean concentrations. Particular emphasis is placed on the laboratory's program for the addition of surrogate compounds to canisters prior to sample collection. Analytical procedures and parameters are outlined and real world data summaries are presented.