Built-in Chamber-Coupled Electronic Pressure Control of Ambient Air as the Carrier Gas for a Cylinder-Free Portable Gas Chromatograph

2021 ◽  
Author(s):  
Eui-Young Ji ◽  
Yeong-Sik Seon ◽  
Jun-Sik Oh ◽  
Kwang-Woo Jung
Keyword(s):  
Ambient Air ◽  
Pressure Control ◽  
Gas Chromatograph ◽  
Carrier Gas ◽  
Electronic Pressure ◽  
Portable Gas Chromatograph

Portable gas chromatograph with integrated components

2004 ◽  
Vol 115 (2-3) ◽  
pp. 318-330 ◽  
Author(s):  
J.A. Dziuban ◽  
J. Mróz ◽  
M. Szczygielska ◽  
M. Małachowski ◽  
A. Górecka-Drzazga ◽  
...  
Keyword(s):  
Gas Chromatograph ◽  
Portable Gas Chromatograph

scholarly journals A Method for On‐Site Analysis of Urinary Benzene by Means of a Portable Gas‐Chromatograph

2005 ◽  
Vol 47 (1) ◽  
pp. 74-77 ◽  
Author(s):  
Shigeru Suna ◽  
Fumihiko Jitsunari ◽  
Fumiyuki Asakawa ◽  
Tomohiro Hirao ◽  
Toshifumi Mannami ◽  
...  
Keyword(s):  
Gas Chromatograph ◽  
Site Analysis ◽  
Portable Gas Chromatograph

scholarly journals Air pollution in landfill of wastes other than hazardous or inert / Zanieczyszczenia powietrza na składowiskach odpadów innych niż niebezpieczne i obojętne

2015 ◽  
Vol 41 (2) ◽  
pp. 41-46 ◽  
Author(s):  
Ewa Miaśkiewicz-Pęska ◽  
Mirosław Szyłak-Szydłowski
Keyword(s):  
Air Pollution ◽  
Chemical Analysis ◽  
Microscopic Fungi ◽  
Gas Chromatograph ◽  
Psychrophilic Bacteria ◽  
Air Samples ◽  
Atmospheric Air ◽  
Bacteria And Fungi ◽  
Portable Gas Chromatograph

Abstract Microbiological and chemical analysis of air was carried out on the area of landfill of wastes other than inert or hazardous. The landfill covers 20 ha and 40 000 Mg of wastes is deposited annually. Municipal waste is not segregated at the landfill. The research was conducted in April, May and November 2012. Number of the psychrophilic and mesophilic bacteria and fungi was estimated by a culture-based method. Quantitative determination of sulfur compounds and meteorological and olfactrometric examinations were also carried out. Chemical analysis was conducted with a Photovac Voyager portable gas chromatograph. Air samples were collected at 5 points. The largest group of microbes were psychrophilic bacteria, especially in summer. The highest concentration of hydrogen sulfide and other odorants was found at leachate tank and landfill body. According to the Polish Standard for the assessment of atmospheric air pollution the air in the area of the landfill is classified as not contaminated and sporadically moderately contaminated. In spring and summer the number of microscopic fungi was increased also in control samples.

Determination of CO2 in Wines by Gas Chromatography

1964 ◽  
Vol 47 (4) ◽  
pp. 730-734
Author(s):  
Howard L Ashmead ◽  
Glenn E Martin ◽  
John A Schmit
Keyword(s):  
Gas Chromatography ◽  
Direct Method ◽  
Alcoholic Beverages ◽  
Gas Chromatograph ◽  
Injection Port ◽  
Carrier Gas ◽  
Solid Adsorbent ◽  
Partial Pressures ◽  
Injection Port Temperature

Abstract A fast and direct method is presented for the determination of CO2 in wines. Partial pressures from other ingredients of alcoholic beverages do not interfere. The method was compared to the manometric procedure under vacuum. An F & M Model 450 Gas Chromatograph with a filament detector was used for C02 determinations. Components were separated by a column 9” long and 1/8” o.d. using charcoal (60—80 mesh) as solid adsorbent. Injection port temperature was ambient; detector and column temperatures were 40°C. Helium was used as a carrier gas at the rate of 50 ml/min. Approximately 50 μ1 samples of standard and unknown solutions were used for the respective determinations.

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