Development of a static headspace gas chromatographic/mass spectrometric method to analyze the level of volatile contaminants biodegradation

Simple Isotope Dilution Headspace-GC-MS Analysis of Naphthalene and p-Dichlorobenzene in Whole Blood and Urine

“…However, the recovery rates are low, especially for lipophilic compounds present in various matrices containing large amounts of lipids and/or proteins, such as whole blood and tissue homogenates. 18,19 This is probably the reason why most of the previous studies [4][5][6][7][8][9][10][11][12] on the analysis of polycyclic aromatic hydrocarbons or volatile organic compounds including naphthalene and/or p-dichlorobenzene did not deal with whole blood samples. However, in postmortem forensic toxicological analysis, hemolyzed whole blood should be frequently analyzed.…”

“…There have been many reports on the analysis of polycyclic aromatic hydrocarbons or volatile organic compounds including naphthalene and/or p-dichlorobenzene in water, soil and plant samples, [4][5][6][7][8] in workers' urine, 9-11 and workers' plasma 5,12 by gas chromatography-mass spectrometry (GC-MS). However, most of the above reports have dealt with screening tests for many compounds from a viewpoint of environmented chemistry.…”

Selection, Isolation and Growth Kinetic Study of a Bacterial Consortium Obtained From the Potengi Mangrove in the Presence of Crude Oil

“…Enrichment cultures were prepared by adding 10g of sample soil in mineral salt medium (Furukawa et al, 1978) with 1% of crude oil as the carbon source. The mineral medium contained (per Liter of deionized water) Furukawa et al, 1978;Sakata et al, 2004). The cultures were incubated on a rotary shaker (430 Benchtop Incubator Shaker, Nova Ética) at 150 rpm and 30 o C until growth could be observed, which occurred approximately after 7 days.…”

“…The mineral medium used was the same as the one used in item 2.2. The pH was adjusted to 7 (Sakata et al, 2004). After 96 h, 100 µL of this culture of the microbial consortium was transferred to a marine agar medium which had 1% of oil.…”

Determination of 2-methylisoborneol and geosmin in aqueous samples by static headspace-gas chromatography-mass spectrometry with ramped inlet pressure

“…Static headspace-GC-MS directly analyzes the vapor phase (generally 1 mL volume) which is in equilibrium to the sample in a closed system. Static headspace is a very simple technology and has been widely used in various industries [12][13][14][15][16]. Since purge-and-trap (dynamic headspace) instruments have more complicated flow paths, carry-over often arises after the analysis of dirty samples and high concentration samples.…”