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ground after drying. Oven-dried samples (0.2 g) were weighed into digestion tubes and digested with 15 mL acid (v(HNO3):v(HCCO4)=4:1). The solution was digested on an electric hotplate at 120 °C......
J. Cent. South Univ. (2020) 27: 975-996 DOI: https://doi.org/10.1007/s11771-020-4347-5 Geosciences in Central South University: A state-of-the-art review GUO Zhen-wei(郭振威), LAI Jian-qing(赖健清), ZHANG Ke-neng(张可能), MAO Xian-cheng(毛先成), WANG Zhi-lin(王智琳), GUO Rong-wen(郭荣文), DENG Hao(邓浩), SUN Ping-he(......