Liquid extraction surface analysis (LESA) is a surface sampling technique that allows electrospray mass spectrometry analysis of a wide range of analytes directly from biological substrates. Here, we present LESA mass spectrometry coupled with high field asymmetric waveform ion mobility spectrometry (FAIMS) for the analysis of dried blood spots on filter paper. Incorporation of FAIMS in the workflow enables gas-phase separation of lipid and protein molecular classes, enabling analysis of both haemoglobin and a range of lipids (phosphatidylcholine or phosphatidylethanolamine, and sphingomyelin species) from a single extraction sample. The work has implications for multiplexed clinical assays of multiple analytes.
机构:Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
Barnett, DA
;
Ells, B
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机构:Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
Ells, B
;
Guevremont, R
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Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, CanadaNatl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
Guevremont, R
;
Purves, RW
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机构:Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
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Univ So Calif, Ctr Appl Mol Med, Los Angeles, CA USA
Stanford Univ, Canary Ctr Canc Early Detect, Stanford, CA 94305 USAVanderbilt Univ, Dept Biomed Informat, Nashville, TN 37203 USA
机构:Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
Barnett, DA
;
Ells, B
论文数: 0引用数: 0
h-index: 0
机构:Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
Ells, B
;
Guevremont, R
论文数: 0引用数: 0
h-index: 0
机构:
Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, CanadaNatl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
Guevremont, R
;
Purves, RW
论文数: 0引用数: 0
h-index: 0
机构:Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
机构:
Univ So Calif, Ctr Appl Mol Med, Los Angeles, CA USA
Stanford Univ, Canary Ctr Canc Early Detect, Stanford, CA 94305 USAVanderbilt Univ, Dept Biomed Informat, Nashville, TN 37203 USA