To determine the content of acrylamide in “8 famous medicines from Zhejiang”, and to carry out the preliminary risk assessment based on the determination results.
After optimization of QuEChERS extraction, the content of acrylamide was determined by the method of isotope-labeled internal standard-ultra high performance liquid chromatography-tandem mass spectrometry (isotope-labeled IS-UHPLC-MS/MS). The determination was carried out with a Phenomenex Kinetex C18 column (100 mm×2.1 mm, 1.7 μm) as the stationary phase, gradient elution was carried out with methanol-0.1% formic acid aqueous solution as the mobile phase, 13C3 acrylamide as the internal standard, and multiple reaction monitoring (MRM) mode was used to detect the residual acrylamide.
The content ranges of acrylamide in 247 batches of samples were 0-26 403 μg·kg-1. These contents exceeded the regulations stipulated by some nations or organizations, and posed certain safety risks in long-term use.
The method established in this study is rapid, simple, sensitive and reproducible, and will lay a scientific basis for the quality control and safety evaluation of acrylamide in “8 famous medicines from Zhejiang” and other genuine medicinal materials.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |