145 research outputs found
Analysis of Macroelements, Beneficial Trace Elements, Rare Earth Elements in the Wild Ixeris Chinensis (Thunb.) Nakai by ICP-MS
No full text
Contents of Rare Earth Elements in Orange from Rare Earth Mining Area of Wuxun, China
No full textConcentrations of rare earth elements in oranges from Xunwu county of Jiangxi province (rare-earth mining area) was determined by ICP-MS to investigate the effects of rare earth elements mining on food safety. The results showed that the contents of all detected rare earth elements in oranges from Xunwu county were much higher than the contents in those from Nanfeng county and were several times of that of other fruits, which proved that rare earth mining significantly affected the ingredient of food. But the contents of rare earth elements were still much lower than the national hygiene standards of rare earth limits in food
<b>Evaluation of baicalin in <i>Scutellaria baicalensis georgi</i> using HPLC method</b>
No full textHigh-performance liquid chromatography (HPLC) has been evaluated for the determination of components in Scutellaria baicalensis georgi, primarily by the separation of baicalin. The samples were extracted at reflux by methanol, and the content of chlorogenic acid was analyzed by HPLC. A Diamonsil C18 column (4.6 mm x 150 mm, 5 μm) was used as the analytical column. The mobile phase was methanol, water and phosphoric acid (47:53:0.2). The detection wavelength was 280 nm to determine the content of baicalin. The baicalin showed linearity over the range of 0.12-1.2 μg. Its average recovery was 98.6% and RSD was 0.78%
Determination of Trace Elements and Heavy Metals in Coconut Meat Simultaneously by ICP-MS
No full text
Determination of Trace Elements and Rare Earth Elements in Gannan Navel Orange Fruit by ICP-MS
No full textStudy on the Content of Beneficial Elements, Harmful Elements and Rare Earth Elements in the Wild Soybean (Glycine soja) by ICP-MS
No full text
- …
