Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34430
Title: Electrospray ionization with aluminum foil : a versatile mass spectrometric technique
Authors: Hu, B
So, PK
Yao, ZP 
Keywords: Mass spectrometry
Electrospray ionization
Aluminum foil
On-target
Direct analysis
Issue Date: 2014
Publisher: Elsevier
Source: Analytica Chimica Acta, 2014, v. 817, p. 1-8 How to cite?
Journal: Analytica Chimica Acta
Abstract: In this study, we developed a novel electrospray ionization (ESI) technique based on household aluminum foil (Al foil) and demonstated the desirable features and applications of this technique. Al foil can be readily cut and folded into desired configuration for effective ionization and for holding sample solution in bulk to allowing acquisition of durable ion signals. The present technique was demonstrated to be applicable in analysis of a wide variety of samples, ranging from pure chemical and biological compounds, e.g., organic compounds and proteins, to complex samples in liquid, semi-solid, and solid states, e.g., beverages, skincare cream, and herbal medicines. The inert, hydrophobic and impermeable surface of Al foil allows convenient and effective on-target extraction of solid samples and on-target sample clean-up, i.e., removal of salts and detergents from proteins and peptides, extending ESI device from usually only for sample loading and ionization to including sample processing. Moreover, Al foil is an excellent heat-conductor and highly heat-tolerant, permitting direct monitoring of thermal reactions, e.g., thermal denaturation of proteins. Overall, the present study showed that Al-foil ESI could be an economical and versatile method that allows a wide range of applications.
URI: http://hdl.handle.net/10397/34430
ISSN: 0003-2670 (print)
DOI: 10.1016/j.aca.2014.02.005
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