| 摘要 |
The present invention relates to a sulfur assaying method comprising converting carbon monoxide in a sample gas generated by combustion of the sample to nitrogen dioxide by a pretreatment, and then measuring the intensity of fluorescence of sulfur dioxide in the sample gas, the pretreatment comprising irradiating the sample gas with light from a low pressure mercury lamp, and also relates to a sulfur assaying apparatus comprising a combustor (1) which generates a sample gas from a sample, a pretreatment means (2) for converting nitrogen monoxide in the sample gas to nitrogen dioxide, and an ultraviolet fluorescence detector (4) for measuring the intensity of fluorescence of sulfur dioxide in the sample gas, the pretreatment means (2) comprising a low pressure mercury lamp (3) disposed in a container (20).
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