建立了快速分光光度法分析变压器油中糠醛作为纸张老化指标的方法

Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93) Pub Date : 1993-10-17 DOI:10.1109/CEIDP.1993.378924

B. Pahlavanpour, G. Duffy

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引用次数: 21

摘要

采用比色法测定了糠醛(FFA)在天然气油和烃类油中的含量。该方法是基于FFA与乙酸苯胺溶液反应，产生明亮的粉红色。颜色的强度是用分光光度法测定的。将该快速显色技术应用于变压器油中游离脂肪酸的测定。该方法对变压器油中低于ppm的FFA敏感。所得结果与高效液相色谱法相当。

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Development of a rapid spectrophotometry method for analysis of furfuraldehyde in transformer oil as an indication of paper ageing

Furfuraldehyde (FFA) has been measured colorimetrically in gas oil and hydrocarbon oil. The method is based on reaction between FFA and aniline acetate solution to produce a bright pink color. The intensity of the color is measured spectrophotometrically. This rapid technique of color development was applied to the determination of FFA in transformer oil. The method is sensitive to sub-ppm FFA in transformer oil. The results are comparable with those obtained using the high-performance liquid chromatography method.<>

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Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)

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