title: Erratum to: Novel polystyrene/antibody nanoparticle-coated capillary for immunoaffinity in-tube solid-phase microextraction.
authors.affiliation: Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China.
authors.forename: Bei
authors.initials: B
authors.lastname: Xu
authors.forename: Shuai
authors.initials: S
authors.lastname: Cheng
authors.forename: Xianhua
authors.initials: X
authors.lastname: Wang
authors.forename: Dongmei
authors.initials: D
authors.lastname: Wang
authors.forename: Liang
authors.initials: L
authors.lastname: Xu