期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 70, 期 33, 页码 10337-10348出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.2c01189
关键词
DGF standard methods; MOSH; MOAH; collaborative trial; LC-GC-FID; quantification; precision data; mineral oil
资金
- IGF project [AiF 19662 N]
- AiF within the program for promoting the Industrial Collective Research (IGF) of the German Ministry of Economics and Energy (BMWi)
A method for analyzing saturated and aromatic mineral oil hydrocarbons has been developed and evaluated in an interlaboratory trial. The method shows good reproducibility and precision for different oil samples.
A method for the analysis of saturated mineral oil hydrocarbons (MOSH) and aromatic mineral oil hydrocarbons (MOAH) has been developed to improve interlaboratory precisions especially for amounts below 10 mg/kg. This approach was adopted as the standard method DGF C-VI 22 (20) of the German Society of Fat Sciences. Therefore, this method was evaluated on different edible oils containing a variety of interfering biogenic substances. The precision data were determined in an interlaboratory trial with an international group of 14 laboratories from Germany, Austria, and Italy. Good reproducible relative standard deviations for total MOSH (12.5-20.7%) and total MOAH (12.4-39.5%) as well as HorRat values ranging between 1.1 and 2.3 for total MOSH and between 0.9 and 2.6 for total MOAH have been achieved. As some matrices showed residual interferences in the MOAH fraction, these substances were further analyzed by online high-performance liquid chromatography-comprehensive two dimensional gas chromatography with time of flight mass detection.
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