Full
Outline
To establish an inductively coupled plasma mass spectrometry (ICP-MS) for the determination of 19 kinds of elements in Plukenetia volubilis Linneo, evaluate the elemental distribution characteristics and quality differences of quality variance element of Plukenetia volubilis Linneo from different producing areas.
A total of 33 batches of Plukenetia volubilis Linneo samples from Xishuangbanna,Honghe, Puer (Yunnan Province), Thailand and Laos were subjected to microwave digestion. The content of 19 kinds of elements including Co, Ni and As were determined by ICP-MS. The method validity was verified by linear relationship, precision, repeatability and recovery rate, and principal component analysis and correlation analysis were performed.
The method showed good linearity (r2>0.9990), excellent precision (relative standard deviation<2%) and reliable accuracy (spiked recovery rate: 90.3%–116.8%). The cumulative variance contribution rate of principal component analysis reached 82.854%, and the characteristic elements of Plukenetia volubilis Linneo were identified as Zn, Cd, Sr, Mn, Cr, Pb and Ti. Correlation analysis indicated strong correlations among the elements.
The ICP-MS method can accurately and rapidly determine the content of 19 kinds of elements in Plukenetia volubilis Linneo, providing a reliable approach for evaluating the quality of Plukenetia volubilis Linneo from different producing areas. The analysis of characteristic elements also offers important reference for improving the quality standards of Plukenetia volubilis Linneo.
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| 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 |
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