Browsing by Subject "chromatography"

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    Analysis of Biofluids by Paper Spray Mass Spectrometry: Advances and Challenges
    (2016-03) Manicke, Nicholas E.; Bills, Brandon J.; Zhang, Chengsen; Department of Chemistry & Chemical Biology, School of Science
    Abstract Paper spray MS is part of a cohort of ambient ionization or direct analysis methods that seek to analyze complex samples without prior sample preparation. Extraction and electrospray ionization occur directly from the paper substrate upon which a dried matrix spot is stored. Paper spray MS is capable of detecting drugs directly from dried blood, plasma and urine spots at the low ng/ml to pg/ml levels without sample preparation. No front end separation is performed, so MS/MS or high-resolution MS is required. Here, we discuss paper spray methodology, give a comprehensive literature review of the use of paper spray MS for bioanalysis, discuss technological advancements and variations on this technique and discuss some of its limitations.