Simplifying the Calculation of TVOC Using TVOC Calculation Tool and Thermal Desorption GC-MS

User Benefits

- TVOC Calculation Tool easily calculates quantitative values using toluene conversion. - Thermal desorption GC-MS can perform high-throughput VOC analysis as it does not require solvent extraction. - The TD-30R thermal desorption system uses nitrogen gas for primary desorption from the collection tube, reducing the amount of helium gas used.

Introduction

The amount of toxic volatile organic compounds (VOCs) in air is one index of air pollution, and is monitored in various places including factories, urban areas, and indoor environments. One method of quantitating such VOCs is by quantitating all compounds eluted, from hexane to hexadecane, using toluene conversion, and then calculating the total volatile organic compounds (TVOC) from the total. If the TVOC exceeds a criterion value, it may be necessary to quantitate each compound. For details on how to calculate TVOC and the recommended procedures, refer to the recommended procedure of ECA (EUROPEAN COLLABORATIVE ACTION). Calculating TVOC manually is quite labor-intensive, as it requires the calculation of values using toluene conversion for each compound, calculation of the total, and calculation of precise quantitative values in some cases if required. However, the calculations are quickly and easily performed using TVOC Calculation Tool. This program can also calculate precise quantitative values for individual compounds specified by the user. This article describes the use of TVOC Calculation Tool to easily calculate the TVOC detected in a laboratory air sample through data analysis of the results from analysis with an efficient thermal desorption gas chromatograph/mass spectrometer (TD-GC/MS) system, which does not require solvent extraction when analyzing VOCs.

May 16, 2022 GMT