Compounds > 2-phenyl-4-4-5-5-tetramethylimidazoline-1-oxyl-3-oxide

2-phenyl-4-4-5-5-tetramethylimidazoline-1-oxyl-3-oxide and triethanolamine

2-phenyl-4-4-5-5-tetramethylimidazoline-1-oxyl-3-oxide has been researched along with triethanolamine* in 1 studies

Other Studies

1 other study(ies) available for 2-phenyl-4-4-5-5-tetramethylimidazoline-1-oxyl-3-oxide and triethanolamine

Article	Year
Simultaneous determination of atmospheric sulfur and nitrogen oxides using a battery-operated portable filter pack sampler. Journal of environmental monitoring : JEM, 2006, Volume: 8, Issue:1 We developed a method to analyze atmospheric SO(x) (particulate SO(4)(2-)+ gaseous SO(2)) and NO(x) (NO + NO(2)) simultaneously using a battery-operated portable filter pack sampler. NO(x) determination using a filter pack method is new. SO(x) and NO(x) were collected on a Na(2)CO(3) filter and PTIO (2-phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) + TEA (triethanolamine) filters (6 piled sheets), respectively. Aqueous solutions were then used to extract pollutants trapped by the filters and the resulting extracts were pre-cleaned (e.g. elimination of PTIO) and analyzed for sulfate and nitrite by ion chromatography. Recoveries of SO(2) and NO(x) from standard pollutant gases and consistency of the field data with those from other instrumental methods were examined to evaluate our method. SO(x) and NO(x) could be analyzed accurately with determination limits of 0.2 ppbv and 1.0 ppbv (as daily average concentrations), respectively. The sampler can determine SO(x) and NO(x) concentrations at mountainous or remote sites without needing an electric power supply. Topics: Air Pollutants; Carbonates; Cellulose; Cyclic N-Oxides; Environmental Monitoring; Ethanolamines; Filtration; Humidity; Imidazoles; Nitrogen Oxides; Quartz; Reproducibility of Results; Sulfur Oxides	2006

Article

Year

Simultaneous determination of atmospheric sulfur and nitrogen oxides using a battery-operated portable filter pack sampler.

Journal of environmental monitoring : JEM, 2006, Volume: 8, Issue:1

We developed a method to analyze atmospheric SO(x) (particulate SO(4)(2-)+ gaseous SO(2)) and NO(x) (NO + NO(2)) simultaneously using a battery-operated portable filter pack sampler. NO(x) determination using a filter pack method is new. SO(x) and NO(x) were collected on a Na(2)CO(3) filter and PTIO (2-phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) + TEA (triethanolamine) filters (6 piled sheets), respectively. Aqueous solutions were then used to extract pollutants trapped by the filters and the resulting extracts were pre-cleaned (e.g. elimination of PTIO) and analyzed for sulfate and nitrite by ion chromatography. Recoveries of SO(2) and NO(x) from standard pollutant gases and consistency of the field data with those from other instrumental methods were examined to evaluate our method. SO(x) and NO(x) could be analyzed accurately with determination limits of 0.2 ppbv and 1.0 ppbv (as daily average concentrations), respectively. The sampler can determine SO(x) and NO(x) concentrations at mountainous or remote sites without needing an electric power supply.

Topics: Air Pollutants; Carbonates; Cellulose; Cyclic N-Oxides; Environmental Monitoring; Ethanolamines; Filtration; Humidity; Imidazoles; Nitrogen Oxides; Quartz; Reproducibility of Results; Sulfur Oxides

2006