The detection method of naphthalene in our wash oil is the traditional crystallization method. The crystallization method has problems such as large sampling volume, long analysis time, high detection limit, large consumption of refined naphthalene, and pollution of the working environment, and the data measured by the crystallization method is biased Larger. For this reason, we conducted a gas chromatography analysis test. The measurement results proved that the gas chromatography operation is simpler, the measurement results are accurate, and the components can be quantitatively analyzed at the same time. The measurement process has a smaller sample amount and reduces environmental pollution. Therefore, the gas chromatography The method can replace the crystallization method to determine naphthalene and methyl naphthalene in wash oil.
