油中糠醛含量测定法（萃取比色法）自１９８４年１２届国际大电网会议，英国提出油中糠醛可作为运行变压器内固体绝缘材料老化的特征产物以来，国内外普追以甲醇萃取油中糠醛，用液相色谐仪检测０．１～５ｍｇ／Ｌ范围的油中微量糠醛。由于液相色谐仪价格昂贵及糠醛在长途... Determination of Furfural in Oil (Colorimetric Extraction) Since the 12th International Conference on Power Grids in 1984, the United Kingdom has proposed that furfural in oil can be used as a characteristic product of the aging of solid insulating materials inside transformers. Since then, Furfural, liquid chromatographic harmonic detection of 0.1 ~ 5mg / L range of trace oil furfural. Due to the high cost of liquid chromatograph and furfural in the long haul ...