Gas chromatographic determination of peroxyacetyl nitrate: Two convenient calibration techniques |
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| Authors: | Horst Meyrahn Günter Helas Peter Warneck |
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| Institution: | (1) Max-Planck-Institut für Chemie (Otto Hahn Institut), Mainz, Federal Public of Germany |
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| Abstract: | Two procedures for the calibration of an electron capture detector (ECD) for peroxyacetyl nitrate (PAN) are discussed. One is based on the first-order decay rate of the the PAN mixing ratio in conditioned glass storage vessels. The other method makes use of the photochemical generation of PAN in mixtures of acetone and NO2 in air. For this purpose a Penray Hg lamp was inserted into a glass vessel filled with 1 atmosphere of air containing 10 ppm NO2 and 1% acetone. After 3 min of irradiation, the average PAN mixing ratio formed was 8.87±0.25 ppmv as determined in six separate runs. |
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| Keywords: | Peroxyacetyl nitrate (PAN) gas chromatography field calibration |
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