How to Improve the Accuracy of Infrared Carbon and Sulfur Analyzers
Infrared carbon and sulfur analyzers are primarily used to analyze carbon and sulfur content in ferrous and nonferrous metals, ores, and other materials in industries such as metallurgy, machinery, and chemicals. Today, we'll share some methods to improve the accuracy of infrared carbon and sulfur analyzers for your reference.
1. Choose an appropriate sample weight. A typical sample weight is 0.1-0.5g. For samples with very low carbon and sulfur content, a larger weight may be required.
2. Select appropriate additives based on the material's characteristics and ensure their purity. While tungsten granules are sufficient for general metals in high-frequency infrared analysis, some specialized materials require additives with stronger reducing properties and higher calorific values, such as pure iron, pure copper, and tin. Arc infrared analysis often uses tin, pure iron, and silicon-molybdenum powder as additives.
3. Maintain a stable airflow rate. Carbon content analysis results are significantly affected by airflow: lower airflow values result in higher carbon readings, while higher airflow values result in lower carbon readings.
4. Avoid the effects of moisture. Sulfur dioxide will react chemically with water, which will reduce the absorption of infrared rays by sulfur dioxide, thus affecting the analysis results.
