EPA TO-15 and TO-15 SIM Volatile Organic Compounds by Cryogenic Concentration
EPA TO-15 is the primary method used for the analysis of volatile organic compounds (VOC) collected in SUMMA or passivated canisters. The samples are analyzed using a concentrator with a series ot traps to remove the moisture from the sample. The EPA TO-15 Method does not have a specific target list, so most laboratories have developed their own lists. Because of its popularity, EAS offers several target lists from 1 compound to 100 compounds, available at different costs. The method is also available as TO-15 low level, which has a lower detection limit then the standard TO-15. When comparing TO-15 pricing, make sure to check the number of target compounds and the detection limits.
Word about Method Detection Limits (MDL)
Defining Detection Limits
Detection Limits are used to specify the lowest concentration of a compound that can be measured reliably by the analytical method. There are several definitions for the detection limits used by laboratories so it is important to understand the differences, so that the objectives of your project are met. On this web site, the term detection limit is used as a general term to collectively describe the more specific terms such as the Method Detection Limit (MDL), Lower Quantitation Limit (LQL), Reporting Limit (RL), and Method Reporting Limit (MRL), and Practical Quantitation Limit (PQL).