The Determination of Vehicle Emissions in Exhaust Gases and Ozone Precursors in Ambient Air with a Built-in Preconcentrator/GC System

Determination of trace volatile organic compounds in air with an integrated preconcentrator/GC system Application Note Environmental Authors Introduction Agilent Technologies, Inc. Many organic compounds that occur in ambient air are the result of emissions from mobile, industrial, or natural sources…

Monitoring 57 Ozone Precursors in Ambient Air Application Note INTRODUCTION Ozone, or trioxygen, is a gas made up of three oxygen atoms (O3). Naturally occurring in the stratosphere (upper atmosphere), ozone protects life on Earth from the Sun’s ultraviolet (UV)…

B E Y O N D M E A S U R E Detailed Hydrocarbon Analysis of Spark Ignition Engine Fuels by GC using ASTM D6729 Application Note INTRODUCTION RESULTS It is vital for quality control purposes that spark ignition…

APPLICATION NOTE Terry Jeffers, Suresh Seethapathy, Dwain Cardona Thermo Fisher Scientific, Austin, TX Key words EPA air quality, PAMS assessment, air sampling, ambient air monitoring, VOC emissions, thermal desorption, continuous monitoring Goal To describe the evaluation and validation of a…