DMSO enhances electrospray response, boosting sensitivity of proteomic experiments.

Hahne, Hannes; Pachl, Fiona; Ruprecht, Benjamin; Maier, Stefan K; Klaeger, Susan; Helm, Dominic; Médard, Guillaume; Wilm, Matthias et al. · Nat Methods · 2013

basic_science · Level V

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Abstract

We report that low percentages of dimethylsulfoxide (DMSO) in liquid chromatography solvents lead to a strong enhancement of electrospray ionization of peptides, improving the sensitivity of protein identification in bottom-up proteomics by up to tenfold. The method can be easily implemented on any LC-MS/MS system without modification to hardware or software and at no additional cost.

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