Application Note: A Fast Run for EPA TO-15A by Using Nutech 8910 Preconcentrator System 【Abstract】 By Using three stage cryogenic system + GC/MS technology (Full Scan and/or SIM) 82 VOC compounds (TO15A Mix by Linde) in air be analyzed in a fast single run performance. The results shows that in 0.1-20.0ppb range the calibration,
On the 38th Annual Technical Meeting on Air Cleaning and Contamination Control held by JACA (Japan Air Cleaning Association) on April, Nutech 3000 THC & NMHC analyzer was presented to the visiting professionals, researchers and scientist.
As the most influential exhibition in Asia for environment protection products and solutions, IE Expo Shanghai attracts tens of thousands of professionals in environment protection filed. Nutech Instruments, as a reputable manufactures for VOCs analytical instruments, attended this fair and presented our solutions for lab, online and portable applications.
Application Note by Using Nutech Preconcentrator System for EPA TO-15A Lab Analysis 【Abstract】 By Using three stage cryogenic system + GC/MS technology (Full Scan and/or SIM) 82 VOC compounds (TO15A Mix by Linde) in air was analyzed in a single run. The results show that in 0.5-10.0ppb range the calibration, precision, accuracy, blank and
Study of VOC and Photochemical Ozone Pollution in the Pearl River Delta Region 1 INTRODUCTION 1.1 Background 1.1.1 The rapid economic development in the Pearl River Delta (PRD) Region including Hong Kong Special Administrative Region over the past decade has resulted in changes in the nature of air pollutants emitted from various activities in
US EPA Method TO-15 VS US EPA Method TO-14A Compendium Method TO-15 is significant in that it extends the Compendium Method TO-14A description for using canister-based sampling and gas chromatographic analysis in the following ways: • Compendium Method TO-15 incorporates a multisorbent/dry purge technique or equivalent (see Appendix A) for water management thereby addressing a
Abstract: In order to assess the human exposure risks from the release of contaminants from water pipes made of polyvinyl chloride (PVC), experiments were carried out by subjecting the PVC pipe material to burning and leaching conditions followed by analysis of the emission and leachate samples. The emissions of burning pipes were analyzed by both
Storage Stability of 66 Volatile Organic Compounds (VOCs) in Silicon-Lined Air Canisters for 30 Days
Storage Stability of 66 Volatile Organic Compounds (VOCs) in Silicon-Lined Air Canisters for 30 Days Abstract The recoveries of 66 volatile organic compounds (VOCs) typically analyzed as part of the United States (U.S.) Environmental Protection Agency’s (EPA’s) Compendium Method TO-15, were evaluated for two commercially available silicon-lined (SL) air canisters. The VOC recoveries were determined
Control of VOCs Emissions by Condenser Pre-treatment in a Semiconductor Fab Abstract The performance of a modified design of local condensers to pre-treat a variety of volatile organic compounds (VOCs) emitted from the stripping process of a semiconductor fab was tested in this study. The reaction temperature of the condensers was controlled at around
Whole Air Canister Sampling and Preconcentration GC-MS Analysis for pptv Levels of Trimethylsilanol in Semiconductor Cleanroom Air
Whole Air Canister Sampling and Preconcentration GC-MS Analysis for pptv Levels of Trimethylsilanol in Semiconductor Cleanroom Air Abstract The costly damage trimethylsilanol (TMS) in cleanrooms exacts on scanner lenses in the semiconductor industry has resulted in the demand for accurate and reliable methods for measuring TMS at trace levels (i.e., parts-per-trillion, volume-per-volume of air