## Ahstraet The chenulummescence reactlon of CIO-with H,O, m akahne solution was apphed to the determmatron of gaseous chlorme species such as Cl, and HCl m ambient au The detection htmt for Cl, was 1 ppm (v/v) and the relative standard devlatlon of fne measurements of 2 5 ppm Cl, was 3 8% Hydroca
Methods for determination of elemental carbon in ambient air
โ Scribed by Wojciech Mniszek; Janusz Kolarczyk; Antoni Hanusik
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 320 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0167-6369
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โฆ Synopsis
A few analytical methods of elemental carbon determination are described. The purpose of the work is to choose the best method for determination of its content in dust suspended in air in industrial regions. The reflectance and chromatographic methods were investigated. It was shown that the reflectance methods could be used only when the particle size and form of elemental carbon is constant. The chromatographic method, which includes the step of combustion of the sample in oxygen and chromatographic determination of evolved CO 2 is recommended, since it is independent of the form of carbon. Organic carbon is removed from dust samples by extraction with benzene-methanol mixture.
๐ SIMILAR VOLUMES
A two-diemnsional gaschromatograph is described for the analysis of volatile compounds. The chromatographic system consists of two separate chromatographs linked together with an interface containing an intermediate trap. The trap is cooled with nitrogen (-150OC) and a cryogradient is created inside