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Analysis of 117 VOCs Compounds by Using Nutech 8910 Preconcentrator System

Application Note: Analysis of 117 VOCs Compounds by Using Nutech 8910 Preconcentrator System 【Abstract】 By Using three stage cryogenic system + GC/MS technology (Full Scan and/or SIM) 117 VOC compounds (TO15 + PAMS + Aldehyde Compounds Mix by Linde) in air be analyzed to check the 8910 instrument performance. The results shows that in 0.1-10.0ppb

By |2021-10-14T06:37:32+00:00October 14th, 2021|Application Notes, Technical Articles|0 Comments

Application Note: A Fast Run for EPA TO-15A by Using Nutech 8910 Preconcentrator System

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,

Application Note by Using Nutech Preconcentrator System for EPA TO-15A Lab Analysis

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

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

By |2021-03-10T07:46:39+00:00March 10th, 2021|Technical Articles|0 Comments

US EPA Method TO-15 VS US EPA Method TO-14A

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

By |2021-03-04T05:44:06+00:00March 4th, 2021|Technical Articles|0 Comments

Releases of Fire-Derived Contaminants from Water Pipes Made of Polyvinyl Chloride Polymer

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

By |2020-11-13T05:16:21+00:00November 13th, 2020|Application Notes, Technical Articles|0 Comments

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

By |2020-09-27T08:48:20+00:00September 27th, 2020|Technical Articles|0 Comments

Control of VOCs Emissions by Condenser Pre-treatment in a Semiconductor Fab

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

By |2020-09-25T08:16:11+00:00September 25th, 2020|Application Notes, Technical Articles|0 Comments

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

By |2020-09-25T05:59:39+00:00September 25th, 2020|Application Notes, Technical Articles|0 Comments

Rapid Determination of TO-15 Volatile Organic Compounds (VOCs) in Air

Rapid Determination of TO-15 Volatile Organic Compounds (VOCs) in Air Abstract The following study evaluated the efficacy of using Nutech’s 8900DS preconcentrator in combination with an analytical system based on a 30 m x 0.32 mm x 1.00 µm Rxi-5Sil MS column for analysis of VOCs in whole air. Results were assessed based on five

By |2020-09-22T08:27:15+00:00September 22nd, 2020|Application Notes, Technical Articles|0 Comments
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