Comparative Study of Furfural’s Raman Spectroscopy Detection in oil based on two kinds of Extractants

2019 IEEE 20th International Conference on Dielectric Liquids (ICDL) Pub Date : 2019-06-01 DOI:10.1109/ICDL.2019.8796789

Weiran Zhou, Weigen Chen, Fu Wan, Haiyang Shi, Shuhua Zhang, Jiayi Zhang, Chengzhi Zhu

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引用次数: 1

Abstract

How to accurately detect the concentration of furfural in transformer oil plays an important role in the analysis of the aging state of the transformer. As a fast and non-destructive detection method, Raman spectroscopy is the key to improving the sensitivity of Raman detection. In this paper, based on the extraction technique, the deionized water and methanol are used as extractants to carry out the comparative experiment of furfural Raman spectroscopy in oil. Firstly, the deionized water and methanol extract of furfural in oil are prepared and obtained. The Raman characteristic peaks of furfural are 1372 cm-1 and 1411 cm-1 and 1675 cm-1 by Raman detection, and qualitative analysis is discussed. The experimental results show that deionized water as an extractant has certain feasibility for Raman detection, and it has the lower limit of detection for Raman detection compared with methanol as extractant, which makes a certain contribution in order to improve the sensitivity of furfural Raman detection in transformer oil.

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两种萃取剂对油脂中糠醛拉曼光谱检测的比较研究

如何准确检测变压器油中糠醛的浓度，对分析变压器的老化状态具有重要意义。拉曼光谱作为一种快速、无损的检测方法，是提高拉曼检测灵敏度的关键。本文在萃取技术的基础上，以去离子水和甲醇为萃取剂，对油中糠醛拉曼光谱进行了对比实验。首先，制备并得到油中糠醛的去离子水和甲醇提取物。通过拉曼检测，糠醛的拉曼特征峰分别为1372 cm-1、1411 cm-1和1675 cm-1，并进行了定性分析。实验结果表明，去离子水作为萃取剂进行拉曼检测具有一定的可行性，并且与甲醇作为萃取剂相比，去离子水具有拉曼检测的下限，为提高变压器油中糠醛拉曼检测的灵敏度做出了一定的贡献。

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2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)

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