Vice director of the State Key Lab of GPMR. Email: zchu@vip.sina.com. I got my Ph.D. on geochemistry from Northwest University (China) in 2006. Research interests: 1) developing key components of the instruments and improving the experimental procedures to establish high-precision element and isotopic analysis techniques for solution and laser in-situ micro-analyses, and 2) the abundances of rarely-analyzed elements in the continental crust. I got elected as a Fellow of the Royal Society of Chemistry in 2015, and got funded by National Science Fund for Distinguished Young Scholars in 2017. I am a member of editorial board for Journal of Analytical Atomic Spectrometry (2013) and Geostandards and Geoanalytical Research (2016). I have published, as first or corresponding authors, 44 SCI papers and coauthored more than 180 papers.