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Oliveira LFC, de Morais DR, Correa DN, de Morais Campêlo J, Sussulini A, Eberlin MN, Santos JM. Rapid and direct detection of artificially aged papers employing easy ambient sonic-spray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9046. [PMID: 33434951 DOI: 10.1002/rcm.9046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
RATIONALE The effort to make fake documents look real leads to the use of crickets and beverages to produce artificially aged papers, as land titles, based on yellowing caused by the use of these methods. An old practice in Brazil, called "cricketing", has led to the misappropriation of Brazilian land using these documents. We propose a rapid, simple, instantaneous and non-destructive method to identify artificially aged papers by easy ambient sonic-spray ionization mass spectrometry (EASI-MS) analysis. METHODS Three typical aging procedures were used to obtain artificially aged papers using coffee, cola drink, and crickets, with the papers being analyzed by EASI-MS. Multivariate statistical analyses were performed on the data to find the sample groups and to study the most relevant ions of each ageing procedure. High-resolution MS (HRMS) was used to obtain the exact masses and attribute formulae to relevant ions present in the samples. RESULTS The combination of EASI-MS and multivariate statistical analyses allowed us to identify the most relevant ions to classify the adulteration of documents and HRMS identified most of these relevant ions. TMS fingerprinting in combination with multivariate analysis also demonstrated that this approach can qualitatively differentiate all the examined paper samples. CONCLUSIONS We developed a cheap, fast and easy method that can help to elucidate counterfeit documents that have been artificially aged, helping to identify chemical additives and one that can be used in forensic laboratories.
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Affiliation(s)
- Luan Felipe Campos Oliveira
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- LaBIOmics, Department of Analytical Chemistry, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Damila Rodrigues de Morais
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Deleon Nascimento Correa
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- Technical-Scientific Police Superintendency, Criminalistic Institute Dr. Octávio Eduardo de Brito Alvarenga -IC-SPTC-SP, São Paulo, SP, 05507-060, Brazil
| | | | - Alessandra Sussulini
- LaBIOmics, Department of Analytical Chemistry, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Marcos Nogueira Eberlin
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- Mackenzie Presbyterian University, São Paulo, SP, 01302-907, Brazil
| | - Jandyson Machado Santos
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- Department of Chemistry, Federal Rural University of Pernambuco-UFRPE, Recife, PE, 52171-900, Brazil
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Yu C, Qian X, Chen Y, Yu Q, Ni K, Wang X. Microfluidic self-aspiration sonic-spray ionization chip with single and dual ionization channels for mass spectrometry. RSC Adv 2016. [DOI: 10.1039/c6ra07959h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In consideration of the miniaturization, integration, and universal disadvantages of microfluidic chip-based ionization coupled with mass spectrometry, this study proposed a novel microfluidic self-aspiration sonic-spray ionization chip.
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Affiliation(s)
- Cilong Yu
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Xiang Qian
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Yan Chen
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- China
| | - Quan Yu
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Kai Ni
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Xiaohao Wang
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
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Advancement in the chemical analysis and quality control of flavonoid in Ginkgo biloba. J Pharm Biomed Anal 2015; 113:212-25. [PMID: 25812435 DOI: 10.1016/j.jpba.2015.03.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/04/2015] [Accepted: 03/05/2015] [Indexed: 11/21/2022]
Abstract
Flavonoids are the main active constituents in Ginkgo biloba L., which have been suggested to have broad-spectrum free-radical scavenging activities. This review summarizes the recent advances in the chemical analysis of the flavonoids in G. biloba and its finished products (from 2009 to 2014), including chemical composition, sample preparation, separation, detection and different quality criteria. More than 70 kinds of flavonoids have been identified in this plant. In this review, various analytical approaches as well as their chromatographic conditions have been described, and their advantages/disadvantages are also compared. Quantitative analyses of Ginkgo flavonoids applied by most pharmacopeias start with an acidic hydrolysis followed by determination of the resulting aglycones using HPLC. But increasing direct assay of individual flavonol glycosides found that many adulterated products were still qualified by the present tests. To obtain an authentic and applicable analytical approach for quality evaluation of Ginkgo and its finished products, related suggestions and opinions in the recent publications are mainly discussed in this review. This discussion on chemical analyses of Ginkgo flavonoids will also be found as a significant guide for widely varied natural flavonoids.
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