The influence of plasticizers based on carboxylic acid esters on the Fourier transform infrared (FTIR) spectroscopic determination of biodiesel contamination [fatty acid methyl esters (FAMEs)] in aviation turbine fuel was investigated. It has been found that jet fuel can become contaminated with plasticizers through the use of handling equipment based on elastomers. FTIR spectroscopic investigations show that the extent of detection of false-positive ASTM D7797 FAME levels depends upon the type of plasticizer. While aromatic carboxylic acid esters based on phthalates have no influence, aliphatic carboxylic acid esters may cause inaccurate results.

中文翻译：

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酯类增塑剂对根据ASTM D7797测定航空涡轮燃料中生物柴油污染的影响

研究了基于羧酸酯的增塑剂对傅立叶变换红外光谱（FTIR）光谱法测定航空涡轮机燃料中生物柴油污染[脂肪酸甲酯（FAME）]的影响。已经发现，通过使用基于弹性体的处理设备，喷气燃料会被增塑剂污染。FTIR光谱研究表明，假阳性ASTM D7797 FAME水平的检测程度取决于增塑剂的类型。尽管基于邻苯二甲酸酯的芳族羧酸酯没有影响，但脂肪族羧酸酯可能会导致结果不准确。