%0 Figure %A Ren, Meng %A Wang, Renfang %A Yang, Yimin %D 2018 %T MOESM2 of Identification of the proto-inkstone by organic residue analysis: a case study from the Changle Cemetery in China %U https://springernature.figshare.com/articles/figure/MOESM2_of_Identification_of_the_proto-inkstone_by_organic_residue_analysis_a_case_study_from_the_Changle_Cemetery_in_China/6024785 %R 10.6084/m9.figshare.6024785.v1 %2 https://springernature.figshare.com/ndownloader/files/10845224 %K Chinese inkstone %K Shape %K Pine-soot ink %K Dehydroabietic acid %X Additional file 2: Figure S2. The extraction solvent of chloroform/methanol (2:1 V/V) (a) and acetone (b) after centrifugation. %I figshare