Fig. 7From: Sebomic identification of sex- and ethnicity-specific variations in residual skin surface components (RSSC) for bio-monitoring or forensic applicationsCommonalities and differences in the number of compound ions detected in positive ionisation (bold) and negative ionisation (italic) mode by LC-MS in the RSSC of volunteers, grouped according to ethnicity (n = 9 White, n = 36 Asian and n = 18 African)Back to article page