Abstract：Polychlorinated naphthalenes(PCNs) are items that must be detected in the list of hazardous substances in ship. At present, there is no united test standard, so it is necessary to establish a method for the determination of PCNs in marine materials. The marine material was treated by ultrasonic extraction for 1 h with acetone-normal hexane mixed solvent. After filtration, Agilent and HP-5MS (30 m×0.25 mm×0.25 μm) capillary column was used for separation. Quadrupole mass spectrometry detector was employed for quantitative analysis. The determination of six PCNs in sample was realized by gas chromatography-mass spectrometry(GC-MS). The linear range of method was 10-100 μg/L. The correlation coefficients of calibration curve were all higher than 0.998. The limits of detection were 14.0-40.6 μg/kg, and the limits of quantification were 46.8-135.3 μg/kg. Three content levels of PCNs (200, 500 and 900 μg/kg) were added into marine materials with content lower than the limit of detection. The results showed that the recoveries of six PCNs were between 99% and 109%. The relative standard deviations (RSD, n=6) were between 0.29% and 4.2%. Six PCNs in three marine materials (capacitor, cable and lubricating oil) were analyzed according to the experimental method and existing method in the literature. The standard addition content was 500 μg/kg. The recoveries of method were between 98% and 105%. The RSD(n=6) were between 1.7% and 3.8%.
王雪, 刘君, 张菅, 王青松, 穆倩, 杨晓燕. 超声萃取-气相色谱-质谱联用法测定船舶用材料中6种多氯化萘[J]. 冶金分析, 2023, 43(1): 68-73.
WANG Xue, LIU Jun, ZHANG Jian, WANG Qingsong, MU Qian, YANG Xiaoyan. Determination of 6 polychlorinated naphthalene in marine material by gas chromatography-mass spectrometry with ultrasonic extraction. , 2023, 43(1): 68-73.
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