Research on the Influence of Cosolvent on the Determination of the Contamination Degree of Jet Fuel

Autor: Jian-Qiang Hu, Xin Xu, Li Guo, Jixin Mao, Chen Binghao, Quan-Xi Zheng, Shi-Zhao Yang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: ACS Omega, Vol 5, Iss 21, Pp 12184-12190 (2020)
ACS Omega
ISSN: 2470-1343
Popis: The effect of cosolvent on trace free water in the determination of the contamination degree of jet fuel was investigated. The interference of trace free water on the automatic particle counter can be eliminated by adding isopropanol as a cosolvent to the measured oil sample. Isopropanol can dissolve trace free water in oil. Addition of isopropanol could stabilize the pollution grade of particles with size ≥30 μm (c) at the same level, which is most obviously affected by free water without isopropanol. The standard uncertainty u(X1) is slightly reduced with the addition of isopropanol, and the repeatability and accuracy of the automatic particle counting method are obviously improved. The results show that isopropanol should be added as a cosolvent to eliminate the interference of free water when the contamination degree of jet fuel oil samples with obvious free water is determined by the automatic particle counting method.
Databáze: OpenAIRE