Work

Instantaneous chemical profiles of banknotes by ambient mass spectrometry

Year: 2010

Type: article

Abstract: Using two desorption/ionization techniques (DESI and EASI) and Brazilian real, US$ dollar, and euro bills as proof-of-principle techniques and samples, direct analysis by ambient mass spectrometry is shown to function as an instantaneous, reproducible, and non-destructive method for chemical analysis of banknotes. Characteristic chemical profiles were observed for the authentic bills and for the counterfeit bills made using different printing processes (inkjet, laserjet, phaser and off-set printers). Detection of real-world counterfeit bills and identification of the counterfeiting method has also been demonstrated. Chemically selective 2D imaging of banknotes has also been used to confirm counterfeiting. The nature of some key diagnostic ions has also been investigated via high accuracy FTMS measurements. The general applicability of ambient MS analysis for anti-counterfeiting strategies particularly via the use of "invisible ink" markers is discussed.

Source: The Analyst

DOI: 10.1039/c0an00243g

Authors: Livia S. Eberlin, Renato Haddad, Ramon C. Sarabia Neto, Ricardo G. Cosso, Denison R. J. Maia, Adriano O. Maldaner, Jorge Jardim Zacca, Gustavo B. Sanvido, Wanderson Romão, Boniek G. Vaz, Demian R. Ifa, Allison Dill, R. Graham Cooks, Marcos N. Eberlin

Institutions: Universidade Estadual de Campinas (UNICAMP), Purdue University West Lafayette, Federal Police of Brazil

Language: English

Topic: Mass Spectrometry Techniques and Applications

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Purdue University, Fundação de Amparo à Pesquisa do Estado de São Paulo, Division of Chemistry

OpenAlex ID: W2115473346

FWCI: 3.731

Cites: 47

Cited by: 92

Related to: 10