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Issue 5, 2016
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A new insert sample approach to paper spray mass spectrometry: a paper substrate with paraffin barriers

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Abstract

The analytical performance for paper spray (PS) using a new insert sample approach based on paper with paraffin barriers (PS-PB) is presented. The paraffin barrier is made using a simple, fast and cheap method based on the stamping of paraffin onto a paper surface. Typical operation conditions of paper spray such as the solvent volume applied on the paper surface, and the paper substrate type are evaluated. A paper substrate with paraffin barriers shows better performance on analysis of a range of typical analytes when compared to the conventional PS-MS using normal paper (PS-NP) and PS-MS using paper with two rounded corners (PS-RC). PS-PB was applied to detect sugars and their inhibitors in sugarcane bagasse liquors from a second generation ethanol process. Moreover, the PS-PB proved to be excellent, showing results for the quantification of glucose in hydrolysis liquors with excellent linearity (R2 = 0.99), limits of detection (2.77 mmol L−1) and quantification (9.27 mmol L−1). The results are better than for PS-NP and PS-RC. The PS-PB was also excellent in performance when compared with the HPLC-UV method for glucose quantification on hydrolysis of liquor samples.

Graphical abstract: A new insert sample approach to paper spray mass spectrometry: a paper substrate with paraffin barriers

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Publication details

The article was received on 21 Sep 2015, accepted on 14 Jan 2016 and first published on 14 Jan 2016


Article type: Paper
DOI: 10.1039/C5AN01954K
Citation: Analyst, 2016,141, 1707-1713
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    A new insert sample approach to paper spray mass spectrometry: a paper substrate with paraffin barriers

    T. C. Colletes, P. T. Garcia, R. B. Campanha, P. V. Abdelnur, W. Romão, W. K. T. Coltro and B. G. Vaz, Analyst, 2016, 141, 1707
    DOI: 10.1039/C5AN01954K

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