1
|
Banidol M, Kouider S, Sergent I, Pizzala H, Charles L. Desorption electrospray ionization mass spectrometry imaging of latent fingerprints revealed by Oil Red O. Rapid Commun Mass Spectrom 2024; 38:e9724. [PMID: 38420652 DOI: 10.1002/rcm.9724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/04/2024] [Accepted: 02/04/2024] [Indexed: 03/02/2024]
Abstract
Mass spectrometry imaging (MSI) is increasingly used to produce chemical images of latent fingerprints. Yet, the actual benefits of MSI for real case studies have to be assessed for fingerprints previously processed by forensic techniques. Here, we have evaluated the compatibility of desorption electrospray ionization (DESI) with the fingerprint enhancement technique involving Oil Red O (ORO). METHODS To optimize the ionization step independently from surface extraction, the ORO reagent and its mixture with model compounds (triolein and linoleic acid) were first studied in solution using high-resolution electrospray ionization tandem mass spectrometry (ESI-MS/MS). Then, DESI-MSI experiments were performed in both polarity modes for ORO-processed fingermarks deposited on pieces of paper used as porous substrates. RESULTS ESI-MS of ORO reveals a complex mixture of azo dyes. Two main impurities detected beside the targeted species were characterized using MS/MS and then were usefully employed to produce DESI-MS images of fingermarks, decreasing the scanning rate to get sufficient ion abundance from natural fingerprints. ORO did not prevent chemical profiling, and one major added value of this pink dye was to produce MS images with contrast that cannot be obtained optically for some colored substrates. CONCLUSIONS DESI-MS has demonstrated imaging compatibility with the application of ORO used to enhance latent fingerprints on paper and could also enable chemical profiling in natural fingermarks. In addition, MS images of ORO impurities were of higher quality than optical ones for fingerprints revealed on colored paper.
Collapse
Affiliation(s)
- Mariska Banidol
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
- Institut de Recherche Criminelle de la Gendarmerie Nationale, Cergy-Pontoise, France
| | - Sophia Kouider
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
| | - Isaure Sergent
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
| | - Hélène Pizzala
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
| | - Laurence Charles
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
| |
Collapse
|
2
|
Pizzala H, Claeys-Bruno M, Monnier V, Sergent M, Charles L. Design of Experiments for Matrix-Assisted Laser Desorption/Ionization of Amphiphilic Poly(Ethylene Oxide)-b-Polystyrene Block Copolymers. Front Chem 2021; 9:740495. [PMID: 34568285 PMCID: PMC8458736 DOI: 10.3389/fchem.2021.740495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/26/2021] [Indexed: 11/13/2022] Open
Abstract
Matrix-assisted laser/desorption ionization (MALDI) has become a very popular ionization technique for mass spectrometry of synthetic polymers because it allows high throughput analysis of low amounts of sample while avoiding the complexity introduced by extensive multiple charging of electrospray ionization. Yet, fundamental mechanisms underlying this ionization process are not fully understood, so development of sample preparation methods remains empirical. Reliable prediction for the optimal matrix/analyte/salt system is indeed still not possible for homopolymers and it becomes even more challenging in the case of amphiphilic block copolymers where conditions dictated by one block are not compatible with MALDI requirements of the second block. In order to perform MALDI of copolymers composed of poly (ethylene oxide) (PEO) and polystyrene (PS) blocks, it was postulated here that experimental conditions suitable for both species would also be successful for PEO-b-PS. Accordingly, designs of experiments based on Quantitative Structure Activity Relationship (QSAR) analysis were first implemented, studying the influence of 19 matrices and 26 salts on the laser fluence requested for successful MALDI. This analysis first permitted to highlight correlations between the investigated 10 descriptors of matrices and salts and the analytical response, and then to construct models that permits reliable predictions of matrix/salt couples to be used for one or the other homopolymer. Selected couples were then used for MALDI of a PEO-b-PS copolymer but no general trend was observed: experimental conditions expected to work often failed whereas ionic adducts of the copolymer were clearly detected with some matrix/salt systems that were shown to badly perform for constituting homopolymers. Overall, this rules out the working assumption stating that the MALDI behavior of chains composed of PEO and PS segments should combine the behavior of the two polymeric species. Yet, although requiring a dedicated design of experiments, MALDI of the amphiphilic PEO-b-PS copolymer was achieved for the first time.
Collapse
Affiliation(s)
- Hélène Pizzala
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
| | - Magalie Claeys-Bruno
- Aix Marseille Université, UMR CNRS IRD 7263, Institut Méditerranéen de Biodiversité Marine et Continentale, Marseille, France
| | - Valérie Monnier
- Aix Marseille Université, CNRS, Centrale Marseille, FR 1739, Fédérations des Sciences Chimiques, Marseille, France
| | - Michelle Sergent
- Aix Marseille Université, UMR CNRS IRD 7263, Institut Méditerranéen de Biodiversité Marine et Continentale, Marseille, France
| | - Laurence Charles
- Aix Marseille Université, CNRS, UMR 7273, Institut de Chimie Radicalaire, Marseille, France
| |
Collapse
|
3
|
Steciuk G, Schäf O, Tortet L, Pizzala H, Palatinus L, Hornfeck W, Paillaud J. A New Lithium‐Rich Zeolitic 10‐MR Zincolithosilicate MZS‐1 Hydrothermally Synthesized under High Pressure and Characterized by 3D Electron Diffraction. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202000939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gwladys Steciuk
- Institute of Physics of the AS CR v.v.i., Na Slovance 2 182 21 Prague Czech Republic
| | - Oliver Schäf
- Laboratoire MADIREL, UMR7246 Aix-Marseille Université CNRS Campus Scientifique de St. Jérôme, 20 13397 Marseille Cedex France
| | - Laurence Tortet
- Laboratoire MADIREL, UMR7246 Aix-Marseille Université CNRS Campus Scientifique de St. Jérôme, 20 13397 Marseille Cedex France
| | - Hélène Pizzala
- Institut de Chimie Radicalaire, UMR7273 Aix-Marseille Université, CNRS Campus Universitaire de Saint-Jérôme 52 Avenue Escadrille Normandie Niemen 13013 Marseille France
| | - Lukáš Palatinus
- Institute of Physics of the AS CR v.v.i., Na Slovance 2 182 21 Prague Czech Republic
| | - Wolfgang Hornfeck
- Institute of Physics of the AS CR v.v.i., Na Slovance 2 182 21 Prague Czech Republic
| | - Jean‐Louis Paillaud
- Institut de Science des Matériaux de Mulhouse (IS2M) UMR 7361 CNRS Université de Haute-Alsace 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| |
Collapse
|
4
|
Pizzala H, Chendo C, Charles L. Using solid-state nuclear magnetic resonance to rationalize best efficiency of 2,6-dihydroxybenzoic acid over other 2,X-dihydroxybenzoic acid isomers in solvent-free matrix-assisted laser desorption/ionization of poly(ethylene glycol). Rapid Commun Mass Spectrom 2021; 35:e8966. [PMID: 33037742 DOI: 10.1002/rcm.8966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/01/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Among isomers of dihydroxybenzoic acid (DHB), 2,5-DHB is often the most efficient matrix in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) for a great variety of compounds. Yet, when performing solvent-free MALDI, 2,6-DHB yields better results for poly(ethylene glycol [PEG]). This intriguing feature is explored here using solid-state nuclear magnetic resonance (NMR). METHODS Ternary mixtures were prepared by grinding 2,X-DHB (X = 3-6), poly(ethylene glycol) (Mn = 2000 g mol-1 ) and lithium fluoride (LiF) in a matrix/analyte/salt molar ratio of 50/1/10 for 16 min under a controlled atmosphere. After mixing, a few grains were applied to the MALDI target for MS analysis, whereas the major part of the ground sample was transferred into rotors to perform 13 C, 7 Li, and 19 F NMR experiments. RESULTS Lithiated PEG chains are mainly formed with 2,6-DHB in solvent-free MALDI, but their abundance increases with 2,3-DHB and 2,4-DHB when water uptake is favored by a humid atmosphere. Solid-state NMR shows that grinding 2,6-DHB-based samples in atmospheric conditions leads to a solid phase in which the matrix, PEG, and salt molecules exhibit a high mobility compared with systems involving other 2,X-DHB isomers. This mobile environment would favor (as a solvent) LiF dissociation and best promote PEG cationization. CONCLUSIONS Complementary data in 13 C, 7 Li, and 19 F NMR spectra are consistent with the formation of a solid phase of high mobility composed of 2,6-DHB, PEG, and the two salt components that ultimately favor the production of lithiated PEG chains.
Collapse
Affiliation(s)
- Hélène Pizzala
- Aix Marseille Université, CNRS, Institut de Chimie Radicalaire, Marseille, France
| | - Christophe Chendo
- Aix Marseille Université, CNRS, Fédération des Sciences Chimiques de Marseille, Marseille, France
| | - Laurence Charles
- Aix Marseille Université, CNRS, Institut de Chimie Radicalaire, Marseille, France
| |
Collapse
|
5
|
Fouquet TNJ, Pizzala H, Rollet M, Crozet D, Giusti P, Charles L. Mass Spectrometry-Based Analytical Strategy for Comprehensive Molecular Characterization of Biodegradable Poly(lactic- co-glycolic Acid) Copolymers. J Am Soc Mass Spectrom 2020; 31:1554-1562. [PMID: 32510219 DOI: 10.1021/jasms.0c00137] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An analytical methodology with mass spectrometry as the core technique was developed for precise characterization of end groups, size, and co-monomeric composition of poly(lactic-co-glycolic acid) (PLGA) copolymers, as a preliminary step to qualify their biodegradability. Four PLGA samples were studied, with GA molar content varying from 0 to 50% and Mw ranging from 18 to 75 kg mol-1 according to the supplier. Size exclusion chromatography (SEC) and liquid state nuclear magnetic resonance (NMR) were used as either complementary or validation techniques. As confirmed by tandem mass spectrometry (MS/MS) experiments, macrocycles were most prominent in the low mass range. Nevertheless, elemental compositions derived from high resolution (HR) mass measurements of linear species were consistent with chain terminations revealed by NMR. Off-line coupling of SEC with matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) permitted calibration curves to be built based on absolute molecular weights and, although slightly overestimated, so-obtained Mn and Mw values compared well with SEC and NMR results. Homogeneity of the co-monomeric content of all chains within each PLGA sample was demonstrated using surface-assisted laser desorption/ionization in a reactive mode (reactive-SALDI), a newly developed technique that takes advantage of residual acid on desorption ionization using through-hole alumina membrane (DIUTHAME) chips to induce dissociation of high-molecular-weight polymers containing cleavable C-O bonds. All HRMS data were best handled with Kendrick analysis, which helped reveal minor species and allowed automated computation of congested mass spectra.
Collapse
Affiliation(s)
- Thierry N J Fouquet
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Tsukuba, Ibaraki 305-8565, Japan
| | - Hélène Pizzala
- Aix Marseille Université-CNRS, Institut de Chimie Radicalaire, 13397 Marseille, France
| | - Marion Rollet
- Aix Marseille Université-CNRS, Institut de Chimie Radicalaire, 13397 Marseille, France
| | - Delphine Crozet
- Total Refining and Chemicals, Total Research & Technology Gonfreville, 76700 Harfleur, France
| | - Pierre Giusti
- Total Refining and Chemicals, Total Research & Technology Gonfreville, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, 76700 Harfleur, France
| | - Laurence Charles
- Aix Marseille Université-CNRS, Institut de Chimie Radicalaire, 13397 Marseille, France
| |
Collapse
|
6
|
Pizzala H, Caldarelli S, Eon JG, Rossi AM, San Gil RAS, Laurencin D, Smith ME. A Solid-State NMR Study of Lead and Vanadium Substitution into Hydroxyapatite. J Am Chem Soc 2010. [DOI: 10.1021/ja102908g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
Pizzala H, Barrère C, Mazarin M, Ziarelli F, Charles L. Solid state nuclear magnetic resonance as a tool to explore solvent-free MALDI samples. J Am Soc Mass Spectrom 2009; 20:1906-1911. [PMID: 19665395 DOI: 10.1016/j.jasms.2009.06.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 06/24/2009] [Accepted: 06/30/2009] [Indexed: 05/28/2023]
Abstract
Solid-state Nuclear magnetic resonance (NMR) was used here to explore structural characteristics of samples to be subjected to matrix-assisted laser desorption/ionization (MALDI) and prepared without the use of any solvent. The analytical systems scrutinized in NMR were mixtures of a 2,5-dihydroxybenzoic acid (2,5-DHB) matrix and caesium fluoride (CsF), used as the cationization agent in synthetic polymer MALDI mass analysis, at different molar ratios (1:1, 5:1, and 10:1). Complementary information could be obtained from 13C, 133Cs, and 19F NMR spectra. Grinding the matrix together with the salt in the solid state was shown to induce a strong modification in the molecular organization within the MALDI sample. The evidenced mechano-induced reactions allow strong interactions between the matrix and the cation, up to the formation of a salt, and only occur in the presence of some water molecules. Addition of a poly(ethylene oxide) polymer as the analyte did not further modify the observed molecular organizations. Although relative matrix and salt concentrations in the scrutinized samples were unusual for MALDI analysis, mass spectra of good quality could be obtained and revealed that cation attachment on polymers during the MALDI process is not a matrix-independent event since a lower ionization efficiency was obtained from highly organized solid samples, mostly consisting of 2,5-DHB caesium salt species.
Collapse
Affiliation(s)
- Hélène Pizzala
- Universités Aix-Marseille I-CNRS, UMR 6264: Laboratoire Chimie Provence, Spectrométries Appliquées à la Chimie Structurale, Marseille, France
| | | | | | | | | |
Collapse
|
8
|
Pizzala H, Caldarelli S, Eon JG, Rossi AM, San Gil RAS, Laurencin D, Smith ME. A solid-state NMR study of lead and vanadium substitution into hydroxyapatite. J Am Chem Soc 2009; 131:5145-52. [PMID: 19317471 DOI: 10.1021/ja808270v] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A systematic study on cationic and anionic substitution in hydroxyapatite structures was carried out, with the aim of understanding the impact of ion exchange on the crystalline structure and properties of these materials. Lead and vanadium were chosen for the exchange, due to their known effects on the redox and catalytic properties of hydroxypatites. Hydroxyapatites with variable Pb and V contents, Pb(x)Ca(10-x)(VO(4))(y)(PO(4))(6-y)(OH)(2) (x = 0, 2, 4, 6, 8 and 10 for y = 1; y = 0, 0.5, 1, 2, 3 and 6 for x = 10) were synthesized and characterized by NMR spectroscopy. Solid-state NMR allowed an analysis of the chemical environment of every ion after substitution into the hydroxyapatite network. (43)Ca and (207)Pb NMR spectra at different lead concentrations provided clear evidence of the preferential substitution of lead into the Ca(II) site, the replacement of the Ca(I) site starting at x = 4 for y = 1. Two NMR distinguishable Pb(I) sites were observed in Pb(10)(PO(4))(6)(OH)(2), which is compatible with the absence of a local mirror plane perpendicular to the c direction. In contrast with (31)P NMR, for which only small variations related to the incorporation of Pb are observed, the strong change in the (51)V NMR spectrum indicates that lead perturbs the vanadium environment more than the phosphorus one. The existence of a wide variety of environments for OH in substituted apatites is revealed by (1)H NMR, and the mobility of the water molecules appears to vary upon introduction of lead into the structure.
Collapse
Affiliation(s)
- Hélène Pizzala
- Universite Aix-Marseille I-CNRS, UMR 6264 Laboratoire Chimie Provence, Spectrometries Appliquees a la Chimie Structurale, F-13397 Marseille, France
| | | | | | | | | | | | | |
Collapse
|
9
|
Bergé-Lefranc D, Pizzala H, Paillaud JL, Schäf O, Vagner C, Boulet P, Kuchta B, Denoyel R. Adsorption of small uremic toxin molecules on MFI type zeolites from aqueous solution. ADSORPTION 2008. [DOI: 10.1007/s10450-007-9093-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
10
|
de Paiva Floro Bonfim R, de Moura LC, Pizzala H, Caldarelli S, Paul S, Eon JG, Mentré O, Capron M, Delevoye L, Payen E. Synthesis and Structural Characterization of a New Nanoporous-like Keggin Heteropolyanion Salt: K3(H2O)4[H2SiVW11O40](H2O)8+x. Inorg Chem 2007; 46:7371-7. [PMID: 17691723 DOI: 10.1021/ic700384m] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Single crystals of the potassium salt K3(H2O)4[H2SiVW11O40](H2O)8+x of the vanadium monosubstituted alpha-Keggin dodecatunsgstosilicate were grown from an aqueous solution and analyzed by EDS, XRD, vibration and electronic spectroscopy, and 1H, 51V, and 29Si solid-state NMR spectroscopy. Results indicate the formation of a nanoporous-like compound of hexagonal symmetry (space group P62) with large, water-filled channels running along the c axis. A uniform distribution of vanadium over the 12 metal sites of the alpha-Keggin anion is observed by XRD. Two different neighborhoods were characterized by 51V NMR in a 2:1 ratio (deltaiso=-546.3 and -536.2 ppm), in accordance with a difference in the number of potassium ions in the second coordination shell of vanadium.
Collapse
|