Document B58gq58QNraZn6Owp5ORYRYQJ

METHOD T05 Revision l.G April, 1984 METHOD FOR THE DETERMINATION OF ALDEHYDES AND KETONES IN AMBIENT AIR USING HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) 1. Scope 1.1 This document describes a method for determination of individual aldehydes and ketones in ambient air. With careful attention to Veagent purity and other factors the method can detect most monofunctional aldehydes and ketones at the 1-2 ppbv level. 1.2 Specific compounds for which the method has been employed are listed in Table 1. Several studies have used the same basic method, with minor procedural differences, for analysis of ambient air (1-3). ? 2. Applicable Documents 4 2.1 ASTM Standards: D 1356 Definitions of Terms Related to Atmospheric Sampling and Analysis (s) 2.2 Other Documents Ambient air studies (1-3). U.S. EPA Technical Assistance Document (4) 3. Sunmary of Method 3.1 Ambient air Is drawn through a midget impinger containing 10 mL BFG15426 t\5 2. Aldehydes EPA - To5 BFG15425 21574121