2.2. Sample Collection and Preparation
This protocol is extracted from research article:
Arsenic Content, Speciation, and Distribution in Wild Cordyceps sinensis
Evid Based Complement Alternat Med, Feb 19, 2021; DOI: 10.1155/2021/6651498

Six wild C. sinensis samples (C1–C6) (each 20 g) were purchased from native habitats, Zaduo, Chengdu, Yushu, Nangqian, Zhiduo, and Qumalai county, Yushu prefecture, Qinghai province, China. Samples were authenticated by professor Yuzhi Du, a certified pharmacist of traditional Chinese medicine.

Samples were rinsed with deionized water to remove dust and soil from surface, dried at 40°C for 48 h, and then stored at −20°C before use. Before experiments, the samples were ground into powder and passed through a 40 mesh sieve.

Note: The content above has been extracted from a research article, so it may not display correctly.

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