Method for Combustion Analysis of Samples in a Combustion Analyzer

摘要

A method for combustion analysing a sample in a combustion analyzer (120,160,180) is provided, where the sample comprises a proportion of sulphur. The sample is supplied to the combustion analyzer and combusted to produce combustion products, comprising a yield of sulphur dioxide for detection. Nitrogen monoxide or a source of nitrogen monoxide is supplied to the combustion analyzer to improve the yield of sulphur dioxide in the combustion products. The yield improver may be supplied before and/or during the combusting step. A proportion of yield improver is preferably greater than the (expected) proportion of sulphur. Ozone may be supplied to the combustion products to convert at least a proportion of any nitrogen monoxide in the combustion products to nitrogen dioxide, before detection.

主权项

1. A method of combustion analysing a sample in a combustion analyzer, the sample comprising a proportion of sulphur, the method comprising the steps of:
supplying the sample to the combustion analyzer; and combusting the sample to produce combustion products, the combustion products comprising a yield of sulphur dioxide for detection, characterised by the step of supplying a yield improver to the combustion analyzer, wherein the yield improver is nitrogen monoxide or a source of nitrogen monoxide.