Blotting paper as a disposable tool for sampling chemical residues from skin surface

Pei-Chi Wu ^a,b, Ewelina P. Dutkiewicz ^b, Pei-Han Liao ^a,b,

Hsien-Yi Chiu ^c,d,e, Pawel L. Urban ^a,f,*

^a Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan

^b Department of Applied Chemistry, National Chiao Tung University, 1001 University Rd., Hsinchu, 300, Taiwan

^c Department of Dermatology, National Taiwan University Hospital Hsinchu Branch, 25 Jingguo Rd., Hsinchu, 300,

Taiwan

^d Department of Dermatology, National Taiwan University Hospital, 7 Chung Shan South Rd., Taipei, 100, Taiwan

^e Department of Dermatology, College of Medicine, National Taiwan University, 1, Section 1, Jen Ai Rd., Taipei, 100,

Taiwan

^f Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101,

Section 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan

Keywords: Cosmetics, Extraction, Sample preparation, Skin sampling, Topical drugs