title: Real-time sample analysis using a sampling probe and miniature mass spectrometer.
abstract: A miniature mass spectrometry system with a sampling probe has been developed for real-time analysis of chemicals from sample surfaces. The sampling probe is 1.5 m in length and is comprised of one channel for introducing the spray and the other channel for transferring the charged species back to the Mini MS. This system provides a solution to the problem of real-time mass spectrometry analysis of a three-dimensional object in the field and is successful with compounds including those in inks, agrochemicals, explosives, and animal tissues. This system can be implemented in the form of a backpack MS with a sampling probe for forensic analysis or in the form of a compact MS with an intrasurgical probe for tissue analysis.
authors.affiliation: Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States.
authors.forename: Chien-Hsun
authors.initials: CH
authors.lastname: Chen
authors.affiliation: Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States.
authors.forename: Ziqing
authors.initials: Z
authors.lastname: Lin
authors.affiliation: Department of Basic Medical Sciences, School of Veterinary Medicine, Purdue University , West Lafayette, Indiana 47907, United States.
authors.forename: Ran
authors.initials: R
authors.lastname: Tian
authors.affiliation: Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States.|Department of Basic Medical Sciences, School of Veterinary Medicine, Purdue University , West Lafayette, Indiana 47907, United States.
authors.forename: Riyi
authors.initials: R
authors.lastname: Shi
authors.affiliation: Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States.
authors.forename: R Graham
authors.initials: RG
authors.lastname: Cooks
authors.affiliation: Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States.|Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Ouyang
mesh_terms: D000818:Animals; D001921:Brain; D004926:Escherichia coli / Q000737:chemistry; D007281:Ink; D007422:Intestines / Q000737:chemistry; D008055:Lipids / Q000032:analysis; D008099:Liver / Q000737:chemistry; D008168:Lung / Q000737:chemistry; D013058:Mass Spectrometry / Q000295:instrumentation*; D051381:Rats; D013499:Surface Properties; D013997:Time Factors; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D008055:Lipids; D055549:Volatile Organic Compounds