摘要：Valuable data for extraneous material in food, additives (e. g. plasticizer) in marketed plastic products and characterization of marketed plastic products were simply offered by direct inlet mass spectrometry (DI-MS) without any pretreatments. DI-MS conditions : (a typical example) EI 20 eV, scan duration 4 sec., scan range m/z 10-500, DI-temp. ; 100°C/0-75 scan, 100-400°C/75-105 scan, 400°C/105-200 scan Sample size was appropriate weight less than 0.5 mg. Data acquiring range : Data of extraneous material in food were given from all range of scan. Data for the additive in marketed plastic product were offered from 0-105 scan range, whereas an information on characterization of marketed plastic product was shown in 105-200 scan range.
关键词：direct inlet mass spectrometry;food oxtraneous material;plastic additive identification;plastic characterization
