alexa Evaluating the use of tricationic reagents for the detection of doubly charged anions in the positive mode by ESI-MS.
Chemical Engineering

Chemical Engineering

Mass Spectrometry & Purification Techniques

Author(s): SoukupHein RJ, Remsburg JW, Breitbach ZS, Sharma PS, Payagala T,

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Abstract The analysis of anions remains an important task for many areas of science, and new sensitive analytical methods continue to be of great interest. In this study, we present the use of 17 tricationic reagents for use as gas-phase ion pairing agents for divalent anions. When the anion pairs with the tricationic reagent, an overall positive charge is retained and enables detection by ESI-MS in the positive mode. The 17 tricationic reagents were made from 1 of 4 core structures and 7 terminal charged groups. The effect of these structural elements on the detection sensitivity of the complex is examined empirically. A comparison of signal-to-noise ratios achieved in positive and negative modes also is presented. This article was published in Anal Chem and referenced in Mass Spectrometry & Purification Techniques

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