alexa Tetraalkylphosphonium-based ionic liquids for a single-step dye extraction MALDI MS analysis platform.
Chemical Engineering

Chemical Engineering

Mass Spectrometry & Purification Techniques

Author(s): Lovejoy KS, Purdy GM, Iyer S, Sanchez TC, Robertson A,

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Abstract Room temperature ionic liquids, or RTILs, based on tetraalkylphosphonium (PR(4)(+)) cations were used as the basis of a platform that enables separation of dyes from textiles, extraction of dyes from aqueous solution, and identification of the dyes by MALDI-MS in a single experimental step for forensic purposes. Ionic liquids were formed with PR(4)(+) cations and ferulate (FA), α-cyano-4-hydroxycinnamate (CHCA), and 2,5-dihydroxybenzoate (DHB) anions. The use of tetraalkylphosphonium-based ionic liquids in MALDI-MS allowed detection of small molecule dyes without addition of a traditional solid MALDI matrix. © 2011 American Chemical Society This article was published in Anal Chem and referenced in Mass Spectrometry & Purification Techniques

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