Idioma:

Calibration of a windowless photoacoustic cell for detection of trace gases

Angeli, Gyorgy Z ; Solyom, Aniko M ; Miklos, Andras ; Bicanic, Dane D

Analytical chemistry (Washington), 1992, Vol.64 (2), p.155-158 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por

Título:
Calibration of a windowless photoacoustic cell for detection of trace gases
Autor: Angeli, Gyorgy Z ; Solyom, Aniko M ; Miklos, Andras ; Bicanic, Dane D
Assuntos: Agricultural Engineering and Physics ; Agrotechniek en -fysica ; Analytical chemistry ; Chemistry ; Chemistry, Analytical ; Exact sciences and technology ; Gases ; General, instrumentation ; Physical Sciences ; Science & Technology ; Scientific imaging
É parte de: Analytical chemistry (Washington), 1992, Vol.64 (2), p.155-158
Notas: istex:32D8D82AD31C3A23201CD1ABC0E000CF292B1D2B
ark:/67375/TPS-WTLDS605-Q
Descrição: The instrumental figure of performance, F, of a windowless, gas-phase photoacoustic cell, defined as the ratio of the normalized photoacoustic signal to the absorbance, is shown to be dependent on the sample, in contrast to previous assumptions. However, for a particular gas, F is independent of concentration in the ppm range. A method of calibration of such a cell is outlined in the absorbance range from 2 X 10(-6) to 5 X 10(-3). The estimated detection limits at a signal to noise ratio of unity were 7.4 ppm, 0.43 ppb, and 1.3 ppb for carbon dioxide, ammonia, and ethylene, respectively.
Editor: WASHINGTON: American Chemical Society
Idioma: Inglês

Links

Voltar para lista de resultados

Anterior Resultado 4 Avançar Ir para próxima página