PerkinElmer

Thermal Desorption

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Simplify and speed your sample preparation. We invented the automated thermal desorption (TD) technology used globally today for indoor and outdoor air monitoring.

Our thermal desorbers are ideal for a wide range of additional gas chromatography (GC) applications, including analysis of outgassing from all manner of materials and analysis of flavors and fragrances.

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  • Brochure

    TurboMatrix Thermal Desorbers for Gas Chromatography

    For laboratories analyzing everything from air quality to flavors and fragrances, thermal desorption offers a faster, easier, more cost-efficient way to prepare samples for GC or GC/MS analysis. Ideal for the trace-level measurement of volatile organic compounds (VOCs)—as well as most semi-volatile chemicals—thermal desorption lets you avoid time-consuming, manual, solvent-based sample preparation in favor of a simple, streamlined, automated approach. It also delivers the added benefits of superior throughput and enhanced sensitivity.

  • Product Note

    Ozone Precursor System

    The analysis of C2 to C12 volatile organic ozone-precursor compounds can present a serious technical challenge to the analytical chemist. Low concentrations in the atmosphere coupled with the need to monitor frequently to assess diurnal variations means that a preconcentration step of the sample before analysis by thermal desorption is required. While the samples can be collected in the field and returned to the laboratory, remote, field-based analysis is desired which allows reduced data turnaround time, minimizes sample collection hardware and permits the presence or absence of VOCs to be correlated with meteorological data. In the field, low-molecular-weight C2 VOCs can be trapped on solid adsorbents if those adsorbents are cryogenically cooled.

  • Application Note

    Analysis of Volatile Organic Compounds in Air by Online TD-GC

    Volatile Organic Compounds (VOCs) have been identified as a major source of air pollution, and as such, have been regulated as a cause of both primary and secondary pollution, such as photochemistry smog. The U.S. Environmental Protection Agency (U.S. EPA) regulates 189 hazardous air pollutants under the Clean Air Act (CAA) of 1990, 51% of which are VOCs. The CAA offers further regulation and guidance for the monitoring of VOCs and ozone pollution in ambient air with a list of 57 ozone-precursor target analytes monitored under U.S. EPA’s Technical Assistance Document for Sampling and Analysis of Ozone Precursors, EPA/600-R-98/161 (1998)1, as well as the requirement of states to establish Photochemical Assessment Monitoring Stations (PAMS). This paper details an application for VOC monitoring with an extended target compound list utilizing a PerkinElmer TurboMatrix 300 TD and PerkinElmer Clarus® 580 GC. The application note demonstrates results with good repeatability, linearity and detection limits.

  • Application Note

    Determination of Volatile Organic Compounds (VOCs) in Wallpapers Using ATD-GCMS

    Wallpaper is widely used throughout the world as an interior design choice that offers bright colors, rich designs and durability, all at an affordable price. Vinyl wallpaper has emerged as an especially durable choice over paper and non-woven varieties of wallpaper, however, its manufacturing poses many environmental concerns. When manufacturing wallpaper, a large amount of organic solvent is utilized in the treatment and printing processes. As a result, high levels of volatile organic compounds (VOCs) can be present in the product, which pose an inhalation risk to humans. To identify potential levels of VOCs in wallpaper samples, a method was undertaken, targeting 35 volatile organic compounds using a PerkinElmer TurboMatrix™ 650 ATD and PerkinElmer Clarus® SQ8 GC/MS, with results and methodology introduced in this study.

  • Case Study

    Collaboration Helps Improve How Pace Analytical Services Collects and Analyzes Air Samples

    PerkinElmer’s new desorption tube is now used on a routine basis and it is changing the way Pace and its customers conduct environmental testing. In fact, productivity and customer satisfaction at Pace Labs has significantly improved thanks to this single method approach. The benefits of the TO-17 thermal desorption tubes are that they use no solvent, rendering it a more environmentally friendly method.

  • FAQ

    What EPA Method 325 Means to Oil Refineries

    The following is an interview with Lee Marotta, Senior Field Application Scientist at PerkinElmer, Inc. Lee has more than 20 years of experience in the environmental field supporting water, soil, and air applications and is a long-time advisor to the EPA. As our PerkinElmer resident expert, Lee talks about the new benzene testing standards at the fenceline of North American refineries as required by Method 325 A/B.

  • Flyer

    One-Stop Solution for EPA Method 325

    As petroleum and refining experts and suppliers, you are a vital asset to the nation. So why not focus on what you do best and allow a world-class leader in environmental analysis to handle the details on your Method 325 response? Because of Method 325’s complex requirements for continuous passive air sampling, ongoing laboratory analysis, and detailed reporting to establish a traceable audit trail, you can turn to PerkinElmer, a global leader for industrial solutions.