Microfabricated Gas Chromatograph for On-Site Determination of Trichloroethylene in Indoor Air Arising from Vapor Intrusion. 1. Field Evaluation

2012 ◽  
Vol 46 (11) ◽  
pp. 6065-6072 ◽  
Author(s):  
Sun Kyu Kim ◽  
David R. Burris ◽  
Hungwei Chang ◽  
Jonathan Bryant-Genevier ◽  
Edward T. Zellers
Keyword(s):  
Indoor Air ◽  
Field Evaluation ◽  
Vapor Intrusion ◽  
Gas Chromatograph

Microfabricated Gas Chromatograph for On-Site Determinations of TCE in Indoor Air Arising from Vapor Intrusion. 2. Spatial/Temporal Monitoring

2012 ◽  
Vol 46 (11) ◽  
pp. 6073-6080 ◽  
Author(s):  
Sun Kyu Kim ◽  
David R. Burris ◽  
Jonathan Bryant-Genevier ◽  
Kyle A. Gorder ◽  
Erik M. Dettenmaier ◽  
...  
Keyword(s):  
Indoor Air ◽  
Vapor Intrusion ◽  
Gas Chromatograph

scholarly journals Determination of Aldehydes in Indoor Air Samples by Collection Using O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine Impregnated Silica Gel-Solvent Extraction/Gas Chromatograph Technique.

Eisei kagaku ◽  
1996 ◽  
Vol 42 (6) ◽  
pp. 500-506 ◽  
Author(s):  
YASUAKI MORI ◽  
KIYOMI TSUJI ◽  
SETSUKO SETSUDA ◽  
SUMIO GOTO ◽  
SUKEO ONODERA ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Silica Gel ◽  
Indoor Air ◽  
Gas Chromatograph ◽  
Air Samples

Improved Cleanup and Derivatization for Gas Chromatographic Determination of Monosodium Glutamate in Foods

1983 ◽  
Vol 66 (6) ◽  
pp. 1528-1531 ◽  
Author(s):  
Hiroshi Nakanishi
Keyword(s):  
Glutamic Acid ◽  
Acid Derivative ◽  
Monosodium Glutamate ◽  
Chromatographic Determination ◽  
Flame Ionization Detection ◽  
Gas Chromatograph ◽  
Flame Ionization ◽  
Acetone Water ◽  
Chromatographic Procedure

Abstract A gas chromatographic procedure is described for determining monosodium glutamate (MSG) in several types of food. A sample is extracted with acetone- water (1 + 1). Acetone is evaporated and an aliquot of the extract is buffered with 1M NH4OH-1M NH4CI pH 9 solution, and chromatographed directly on a column of QAE Sephadex A-25 that has been pretreated with the same buffer. MSG is eluted with 0.1N HC1, and a portion of the eluate is evaporated to dryness and reacted with dimethylformamide( DMF)-dimethylacetal to form the glutamic acid derivative, which is injected into a gas chromatograph and measured by flame ionization detection. Recoveries of MSG from sample fortified at 5-500 mg ranged from 92.8 to 100%.

Determination of geometric properties of SNOM tips by means of combined far-field and near-field evaluation

1999 ◽  
Author(s):  
Soenke Seebacher ◽  
Wolfgang Osten ◽  
Werner P. O. Jueptner ◽  
Vadim P. Veiko ◽  
Nikolay B. Voznesensky
Keyword(s):  
Near Field ◽  
Field Evaluation ◽  
Far Field ◽  
Geometric Properties

scholarly journals Effects of room airflow on accurate determination of PUF-PAS sampling rates in the indoor environment

2018 ◽  
Vol 20 (5) ◽  
pp. 757-766 ◽  
Author(s):  
Nicholas J. Herkert ◽  
Keri C. Hornbuckle
Keyword(s):  
Indoor Air ◽  
Indoor Environment ◽  
Accurate Determination ◽  
Passive Samplers ◽  
Air Toxics ◽  
Precise Interpretation

Accurate and precise interpretation of concentrations from polyurethane passive samplers (PUF-PAS) is important as more studies show elevated concentrations of PCBs and other semivolatile air toxics in indoor air of schools and homes.

Sign in / Sign up

Export Citation Format

Share Document