151
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Kahl J, Bodroza-Solarov M, Busscher N, Hajslova J, Kneifel W, Kokornaczyk MO, van Ruth S, Schulzova V, Stolz P. Status quo and future research challenges on organic food quality determination with focus on laboratory methods. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:2595-2599. [PMID: 24374910 DOI: 10.1002/jsfa.6553] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 10/29/2013] [Accepted: 12/18/2013] [Indexed: 06/03/2023]
Abstract
Organic food quality determination needs multi-dimensional evaluation tools. The main focus is on the authentication as an analytical verification of the certification process. New fingerprinting approaches such as ultra-performance liquid chromatography-mass spectrometry, gas chromatography-mass spectrometry, direct analysis in real time-high-resolution mass spectrometry as well as crystallization with and without the presence of additives seem to be promising methods in terms of time of analysis and detecting organic system-related parameters. For further methodological development, a system approach is recommended, which also takes into account food structure aspects. Furthermore, the authentication of processed organic samples needs more consciousness, hence most of organic food is complex and processed.
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Affiliation(s)
- Johannes Kahl
- Department of Organic Agricultural Sciences, University of Kassel, Witzenhausen, Germany
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152
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Doué M, Dervilly-Pinel G, Pouponneau K, Monteau F, Le Bizec B. Direct analysis in real time - high resolution mass spectrometry (DART-HRMS): a high throughput strategy for identification and quantification of anabolic steroid esters. Drug Test Anal 2014; 7:603-8. [DOI: 10.1002/dta.1727] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 08/28/2014] [Accepted: 09/02/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Mickael Doué
- LUNAM Université, Oniris; Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA); Atlanpole-La-Chantrerie, CS 50707 Nantes F-44307 France
| | - Gaud Dervilly-Pinel
- LUNAM Université, Oniris; Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA); Atlanpole-La-Chantrerie, CS 50707 Nantes F-44307 France
| | - Karinne Pouponneau
- LUNAM Université, Oniris; Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA); Atlanpole-La-Chantrerie, CS 50707 Nantes F-44307 France
| | - Fabrice Monteau
- LUNAM Université, Oniris; Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA); Atlanpole-La-Chantrerie, CS 50707 Nantes F-44307 France
| | - Bruno Le Bizec
- LUNAM Université, Oniris; Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA); Atlanpole-La-Chantrerie, CS 50707 Nantes F-44307 France
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153
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Ewing KJ, Gibson D, Sanghera J, Miklos F. Desorption electrospray ionization-mass spectrometric analysis of low vapor pressure chemical particulates collected from a surface. Anal Chim Acta 2014; 853:368-374. [PMID: 25467481 DOI: 10.1016/j.aca.2014.09.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 09/19/2014] [Accepted: 09/22/2014] [Indexed: 11/29/2022]
Abstract
The collection of a low vapor pressure chemical simulant triethyl phosphate sorbed onto silica gel (TEP/SG) from a surface with subsequent analysis of the TEP/SG particulates using desorption electrospray ionization-mass spectrometry (DESI-MS) is described. Collection of TEP/SG particulates on a surface was accomplished using a sticky screen sampler composed of a stainless steel screen coated with partially polymerized polydimethylsiloxane (PDMS). DESI-MS analysis of TEP/SG particulates containing different percentages of TEP sorbed onto silica gel enabled the generation of response curves for the TEP ions m/z 155 and m/z 127. Using the response curves the calculation of the mass of TEP in a 25 wt% sample of TEP/SG was calculated, results show that the calculated mass of TEP was 14% different from the actual mass of TEP in the sample using the m/z 127 TEP ion response curve. Detection limits for the TEP vapor and TEP/SG particulates were calculated to be 4 μg and 6 particles, respectively.
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Affiliation(s)
- K J Ewing
- Naval Research Laboratory, Infrared Materials and Devices, Code 5620, 4555 Overlook Ave, SW, Washington DC20375, USA.
| | - D Gibson
- Naval Research Laboratory, Infrared Materials and Devices, Code 5620, 4555 Overlook Ave, SW, Washington DC20375, USA
| | - J Sanghera
- Naval Research Laboratory, Infrared Materials and Devices, Code 5620, 4555 Overlook Ave, SW, Washington DC20375, USA
| | - F Miklos
- Sotera Defense Solutions, 2121 Cooperative Way, Herndon, VA, USA
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154
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Shine VJ, Latha PG, Suja SNR, Anuja GI, Raj G, Rajasekharan SN. Ameliorative effect of alkaloid extract of Cyclea peltata (Poir.) Hook. f. & Thoms. roots (ACP) on APAP/CCl4 induced liver toxicity in Wistar rats and in vitro free radical scavenging property. Asian Pac J Trop Biomed 2014; 4:143-51. [PMID: 25182286 DOI: 10.1016/s2221-1691(14)60223-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 01/18/2014] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To evaluate the hepatoprotective and antioxidant properties of alkaloid extract of Cyclea peltata (C. peltata) against paracetamol/carbon tetra chloride induced liver damage in Wistar rats. METHODS In vivo paracetamol/carbon tetrachloride induced liver damage in Wistar rats, in vitro free radical scavenging studies, HPTLC estimation of tetrandrine and direct analysis in real time- mass spectrometry of alkaloid extract of C. peltata were used for the validation. RESULTS The results showed that pretreatment with alkaloid extract of C. peltata caused significant reduction of serum glutamate pyruvate transaminase, serum glutamate oxaloacetate transaminase, serum alkaline phosphatase, serum cholesterol, liver malondialdehyde levels. The reduced glutathione, catalase, superoxide dismutase levels in liver were increased with alkaloid extract of C. peltata treatment. These results were almost comparable to silymarin and normal control. Histopathological studies also substantiated the biochemical findings. The in vitro hydroxyl, superoxide and DPPH scavenging study of alkaloid extract of C. peltata showed significant free radical scavenging property. CONCLUSIONS The hepatoprotective property of alkaloid extract of C. peltata against paracetamol/carbon tetrachloride may be due the synergistic action of alkaloids especially tetrandrine, fangchinoline through free radical scavenging and thus preventing oxidative stress.
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Affiliation(s)
- Varghese Jancy Shine
- Division of Ethnomedicine and Ethnopharmacology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI), Trivandrum, Kerala 695562, India
| | - Panikamparambil Gopalakrishnan Latha
- Division of Ethnomedicine and Ethnopharmacology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI), Trivandrum, Kerala 695562, India
| | - Somasekharan Nair Rajam Suja
- Division of Ethnomedicine and Ethnopharmacology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI), Trivandrum, Kerala 695562, India
| | - Gangadharan Indira Anuja
- Division of Ethnomedicine and Ethnopharmacology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI), Trivandrum, Kerala 695562, India
| | - Gopan Raj
- Deparment of Chemistry, Sree Narayana College, Punalur, Kollam-691305, Kerala, India
| | - Sreedharan Nair Rajasekharan
- Division of Ethnomedicine and Ethnopharmacology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI), Trivandrum, Kerala 695562, India
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155
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Al-Balaa D, Rajchl A, Grégrová A, Ševčík R, Čížková H. DART mass spectrometry for rapid screening and quantitative determination of cholesterol in egg pasta. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:911-917. [PMID: 25230188 DOI: 10.1002/jms.3465] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 07/10/2014] [Accepted: 08/12/2014] [Indexed: 06/03/2023]
Abstract
To ensure that egg-containing products, such as dried eggs and egg pasta, conform to the technological and legislative requirements for egg content, methods are needed to determine the amount of cholesterol in such products. The conventional approach, direct saponification and hexane extraction followed by cholesterol determination by gas chromatography coupled to a flame ionization detector, is very time consuming. Therefore, we developed a rapid method on the basis of direct analysis in real time coupled to time-of-flight mass spectrometry. Samples were prepared simply by solvent extraction followed by extract filtration. The optimization of certain parameters, including the solvent used and direct analysis in real time ionization gas temperature, had a pronounced effect on the intensities of the produced ions, in particular, the molecular and dehydrated ions of cholesterol and its deuterated analog, cholesterol 2,2,3,4,4,6-d(6) which was used as an internal standard. For the developed method, limits of detection and quantification were 0.03 and 0.05 mg g(-1) respectively. The results of the real samples were compared with those obtained using the conventional approach [limit of detection = 0.002 mg g(-1) and limit of quantification = 0.05 mg g(-1)], and it was found that, although the results obtained using the conventional approach were more accurate, our developed method is much simpler and faster, where the time was dramatically reduced by 87% for executing a screening analysis.
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Affiliation(s)
- Dania Al-Balaa
- Department of Food Preservation, Institute of Chemical Technology, Prague, Czech Republic
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156
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Prchalová J, Kovařík F, Ševčík R, Čížková H, Rajchl A. Characterization of mustard seeds and paste by DART ionization with time-of-flight mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:811-818. [PMID: 25230177 DOI: 10.1002/jms.3419] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/21/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Abstract
Direct analysis in real time (DART) is a novel technique with great potential for rapid screening analysis. The DART ionization method coupled with high-resolution time-of-flight mass spectrometry (TOF-MS) has been used for characterization of mustard seeds and table mustard. The possibility to use DART to analyse glucosinolates was confirmed on determination of sinalbin (4-hydroxybenzyl glucosinolate). The DART-TOF-MS method was optimized and validated. A set of samples of mustard seeds and mustard products was analyzed. High-performance liquid chromatography and DART-TOF-MS were used to determine glucosinolates in mustard seeds and compared. The correlation equation between these methods was DART = 0.797*HPLC + 6.987, R(2) = 0.972. The DART technique seems to be a suitable method for evaluation of the quality of mustard seeds and mustard products.
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Affiliation(s)
- Jana Prchalová
- Institute of Chemical Technology Prague, Department of Food Preservation, Prague
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157
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Salter TLR, Bunch J, Gilmore IS. Importance of Sample Form and Surface Temperature for Analysis by Ambient Plasma Mass Spectrometry (PADI). Anal Chem 2014; 86:9264-70. [DOI: 10.1021/ac502363v] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Josephine Bunch
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
- School
of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Ian S. Gilmore
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
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158
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Recent Advances in the Application of Metabolomics to Studies of Biogenic Volatile Organic Compounds (BVOC) Produced by Plant. Metabolites 2014; 4:699-721. [PMID: 25257996 PMCID: PMC4192688 DOI: 10.3390/metabo4030699] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 08/12/2014] [Accepted: 08/13/2014] [Indexed: 01/03/2023] Open
Abstract
In many plants, biogenic volatile organic compounds (BVOCs) are produced as specialized metabolites that contribute to the characteristics of each plant. The varieties and composition of BVOCs are chemically diverse by plant species and the circumstances in which the plants grow, and also influenced by herbivory damage and pathogen infection. Plant-produced BVOCs are receptive to many organisms, from microorganisms to human, as both airborne attractants and repellants. In addition, it is known that some BVOCs act as signals to prime a plant for the defense response in plant-to-plant communications. The compositional profiles of BVOCs can, thus, have profound influences in the physiological and ecological aspects of living organisms. Apart from that, some of them are commercially valuable as aroma/flavor compounds for human. Metabolomic technologies have recently revealed new insights in biological systems through metabolic dynamics. Here, the recent advances in metabolomics technologies focusing on plant-produced BVOC analyses are overviewed. Their application markedly improves our knowledge of the role of BVOCs in chemosystematics, ecological influences, and aroma research, as well as being useful to prove the biosynthetic mechanisms of BVOCs.
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159
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Nielen MWF, van Beek TA. Macroscopic and microscopic spatially-resolved analysis of food contaminants and constituents using laser-ablation electrospray ionization mass spectrometry imaging. Anal Bioanal Chem 2014; 406:6805-15. [PMID: 24961635 PMCID: PMC4196196 DOI: 10.1007/s00216-014-7948-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 05/27/2014] [Accepted: 06/04/2014] [Indexed: 12/11/2022]
Abstract
Laser-ablation electrospray ionization (LAESI) mass spectrometry imaging (MSI) does not require very flat surfaces, high-precision sample preparation, or the addition of matrix. Because of these features, LAESI-MSI may be the method of choice for spatially-resolved food analysis. In this work, LAESI time-of-flight MSI was investigated for macroscopic and microscopic imaging of pesticides, mycotoxins, and plant metabolites on rose leaves, orange and lemon fruit, ergot bodies, cherry tomatoes, and maize kernels. Accurate mass ion-map data were acquired at sampling locations with an x–y center-to-center distance of 0.2–1.0 mm and were superimposed onto co-registered optical images. The spatially-resolved ion maps of pesticides on rose leaves suggest co-application of registered and banned pesticides. Ion maps of the fungicide imazalil reveal that this compound is only localized on the peel of citrus fruit. However, according to three-dimensional LAESI-MSI the penetration depth of imazalil into the peel has significant local variation. Ion maps of different plant alkaloids on ergot bodies from rye reveal co-localization in accordance with expectations. The feasibility of using untargeted MSI for food analysis was revealed by ion maps of plant metabolites in cherry tomatoes and maize-kernel slices. For tomatoes, traveling-wave ion mobility (TWIM) was used to discriminate between different lycoperoside glycoalkaloid isomers; for maize quadrupole time-of-flight tandem mass spectrometry (MS–MS) was successfully used to elucidate the structure of a localized unknown. It is envisaged that LAESI-MSI will contribute to future research in food science, agriforensics, and plant metabolomics. ᅟ ![]()
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Affiliation(s)
- Michel W F Nielen
- RIKILT Wageningen UR, P.O. Box 230, 6700 AE, Wageningen, The Netherlands,
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160
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Koesukwiwat U, Sanguankaew K, Leepipatpiboon N. Evaluation of a modified QuEChERS method for analysis of mycotoxins in rice. Food Chem 2014; 153:44-51. [DOI: 10.1016/j.foodchem.2013.12.029] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 11/26/2013] [Accepted: 12/07/2013] [Indexed: 10/25/2022]
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161
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Esslinger S, Riedl J, Fauhl-Hassek C. Potential and limitations of non-targeted fingerprinting for authentication of food in official control. Food Res Int 2014. [DOI: 10.1016/j.foodres.2013.10.015] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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162
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Rapid process development of chromatographic process using direct analysis in real time mass spectrometry as a process analytical technology tool. J Pharm Biomed Anal 2014; 94:106-10. [DOI: 10.1016/j.jpba.2014.01.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 01/22/2014] [Accepted: 01/22/2014] [Indexed: 11/17/2022]
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163
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Rubert J, Lacina O, Fauhl-Hassek C, Hajslova J. Metabolic fingerprinting based on high-resolution tandem mass spectrometry: a reliable tool for wine authentication? Anal Bioanal Chem 2014; 406:6791-803. [PMID: 24866710 DOI: 10.1007/s00216-014-7864-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/18/2014] [Accepted: 04/28/2014] [Indexed: 01/13/2023]
Abstract
Ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (MS) and an alternative technology represented by direct analysis in real time coupled with quadrupole time-of-flight MS were investigated for metabolic fingerprinting of 343 red and white wine samples. Direct injection of pure wine and an extraction procedure optimized for isolation of polyphenols were used to compare different analytical and data handling strategies. After data processing and data pretreatment, principal component analysis was initially used to explore the data structure. Initially, the unsupervised models revealed a notable clustering according to the grape varieties, and therefore supervised orthogonal partial least squares discriminant analysis models were created and validated for separation of red and white wines according to the grape variety. The validated orthogonal partial least squares discriminant analysis models based on data (ions) recorded in positive ionization mode were able to classify correctly 95% of samples. In parallel, authentication parameters, such as origin and vintage, were evaluated, and they are discussed. A tentative identification of markers was performed using accurate mass measurement of MS and MS/MS spectra, different software packages and different online libraries. In this way, different flavonol glucosides and polyphenols were identified as wine markers according to the grape varieties.
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Affiliation(s)
- Josep Rubert
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Technicka 3, 166 28, Prague 6, Czech Republic
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164
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Doué M, Dervilly-Pinel G, Gicquiau A, Pouponneau K, Monteau F, Le Bizec B. High Throughput Identification and Quantification of Anabolic Steroid Esters by Atmospheric Solids Analysis Probe Mass Spectrometry for Efficient Screening of Drug Preparations. Anal Chem 2014; 86:5649-55. [DOI: 10.1021/ac501072g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mickael Doué
- LUNAM Université, Oniris, Laboratoire d’Etude des Résidus
et Contaminants dans les Aliments (LABERCA), Atlanpole-La Chantrerie, CS 50707, Nantes, F-44307, France
| | - Gaud Dervilly-Pinel
- LUNAM Université, Oniris, Laboratoire d’Etude des Résidus
et Contaminants dans les Aliments (LABERCA), Atlanpole-La Chantrerie, CS 50707, Nantes, F-44307, France
| | - Audrey Gicquiau
- LUNAM Université, Oniris, Laboratoire d’Etude des Résidus
et Contaminants dans les Aliments (LABERCA), Atlanpole-La Chantrerie, CS 50707, Nantes, F-44307, France
| | - Karinne Pouponneau
- LUNAM Université, Oniris, Laboratoire d’Etude des Résidus
et Contaminants dans les Aliments (LABERCA), Atlanpole-La Chantrerie, CS 50707, Nantes, F-44307, France
| | - Fabrice Monteau
- LUNAM Université, Oniris, Laboratoire d’Etude des Résidus
et Contaminants dans les Aliments (LABERCA), Atlanpole-La Chantrerie, CS 50707, Nantes, F-44307, France
| | - Bruno Le Bizec
- LUNAM Université, Oniris, Laboratoire d’Etude des Résidus
et Contaminants dans les Aliments (LABERCA), Atlanpole-La Chantrerie, CS 50707, Nantes, F-44307, France
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165
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Krtkova V, Schulzova V, Lacina O, Hrbek V, Tomaniova M, Hajslova J. Analytical strategies for controlling polysorbate-based nanomicelles in fruit juice. Anal Bioanal Chem 2014; 406:3909-18. [PMID: 24810233 DOI: 10.1007/s00216-014-7823-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/03/2014] [Accepted: 04/04/2014] [Indexed: 10/25/2022]
Abstract
This study focused on the detection and quantification of organic micelle-type nanoparticles (NPs) with polysorbate components (polysorbate 20 and polysorbate 80) in their micelle shells that could be used to load biologically active compounds into fruit juice. Several advanced analytical techniques were applied in the stepwise method development strategy used. In the first phase, a system consisting of ultrahigh-performance liquid chromatography employing a size exclusion column coupled with an evaporative light scattering detector (UHPLC-SEC-ELSD) was used for the fractionation of micelle assemblies from other, lower molecular weight sample components. The limit of detection (LoD) of these polysorbate micelles in spiked apple juice was 500 μg mL(-1). After this screening step, mass spectrometric (MS) detection was utilized to confirm the presence of polysorbates in the detected micelles. Two alternative MS techniques were tested: (i) ambient high-resolution mass spectrometry employing a direct analysis in real time ion source coupled with an Orbitrap MS analyzer (DART-Orbitrap MS) enabled fast and simple detection of the polysorbates present in the samples, with a lowest calibration level (LCL) of 1000 μg mL(-1); (ii) ultrahigh-performance reversed-phase liquid chromatography coupled with high-resolution time-of-flight mass spectrometry (UHPLC-HRTOF-MS) provided highly selective and sensitive detection and quantification of polysorbates with an LCL of 0.5 μg mL(-1).
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166
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Fernandes AMAP, Fernandes GD, Barrera-Arellano D, de Sá GF, Lins RD, Eberlin MN, Alberici RM. Desorption/ionization efficiencies of triacylglycerols and phospholipids via EASI-MS. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:335-341. [PMID: 24809895 DOI: 10.1002/jms.3366] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 03/03/2014] [Accepted: 03/13/2014] [Indexed: 06/03/2023]
Abstract
Knowledge of the major effects governing desorption/ionization efficiency is required for the development and application of ambient mass spectrometry. Although all triacylglycerols (TAG) have the same favorable protonation and cationization sites, their desorption/ionization efficiencies can vary dramatically during easy ambient sonic-spray ionization because of structural differences in the carbon chain. To quantify this somewhat surprising and drastic effect, we have performed a systematic investigation of desorption/ionization efficiencies as a function of unsaturation and length for TAG as well as for diacylglycerols, monoacylglycerols and several phospholipids (PL). Affinities for Na(+) as a function of unsaturation level have also been assayed via comprehensive metadynamics calculations to understand the influence of this phenomenon on the ionization efficiency. The results suggest that dipole-dipole interactions within a carbon chain tuned by unsaturation sites govern ionization efficiency of TAG and PL.
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Affiliation(s)
- Anna Maria A P Fernandes
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas - UNICAMP, Campinas, 13083-970, SP, Brazil
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167
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Wang X, Li X, Li Z, Zhang Y, Bai Y, Liu H. Online Coupling of In-Tube Solid-Phase Microextraction with Direct Analysis in Real Time Mass Spectrometry for Rapid Determination of Triazine Herbicides in Water Using Carbon-Nanotubes-Incorporated Polymer Monolith. Anal Chem 2014; 86:4739-47. [DOI: 10.1021/ac500382x] [Citation(s) in RCA: 160] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xin Wang
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and
Molecular Engineering of Ministry of Education, Institute of Analytical
Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Xianjiang Li
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and
Molecular Engineering of Ministry of Education, Institute of Analytical
Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Ze Li
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and
Molecular Engineering of Ministry of Education, Institute of Analytical
Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Yiding Zhang
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and
Molecular Engineering of Ministry of Education, Institute of Analytical
Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Yu Bai
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and
Molecular Engineering of Ministry of Education, Institute of Analytical
Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Huwei Liu
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and
Molecular Engineering of Ministry of Education, Institute of Analytical
Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
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168
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Busman M, Liu J, Zhong H, Bobell JR, Maragos CM. Determination of the aflatoxin AFB1 from corn by direct analysis in real time-mass spectrometry (DART-MS). Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:932-9. [DOI: 10.1080/19440049.2014.900572] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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169
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Hintersteiner I, Hertsens R, Klampfl CW. DIRECT ANALYSIS IN REAL TIME/TIME-OF-FLIGHT MASS SPECTROMETRY: INVESTIGATIONS ON PARAMETERS FOR THE COUPLING WITH LIQUID-PHASE SAMPLE INTRODUCTION TECHNIQUES. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.825846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ingrid Hintersteiner
- a Institute of Analytical Chemistry , Johannes Kepler-University Linz , Linz , Austria
| | | | - Christian W. Klampfl
- a Institute of Analytical Chemistry , Johannes Kepler-University Linz , Linz , Austria
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170
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Gross JH. High-mass cluster ions of ionic liquids in positive-ion and negative-ion DART-MS and their application for wide-range mass calibrations. Anal Bioanal Chem 2014; 406:2853-62. [DOI: 10.1007/s00216-014-7720-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 02/18/2014] [Accepted: 02/21/2014] [Indexed: 11/25/2022]
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171
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Wang L, Zeng S, Chen T, Qu H. Direct analysis in real time mass spectrometry, a process analytical technology tool for real-time process monitoring in botanical drug manufacturing. J Pharm Biomed Anal 2014; 91:202-9. [DOI: 10.1016/j.jpba.2013.12.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 12/27/2013] [Accepted: 12/29/2013] [Indexed: 10/25/2022]
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172
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Hrbek V, Vaclavik L, Elich O, Hajslova J. Authentication of milk and milk-based foods by direct analysis in real time ionization–high resolution mass spectrometry (DART–HRMS) technique: A critical assessment. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.08.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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173
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Morlock GE, Ristivojevic P, Chernetsova ES. Combined multivariate data analysis of high-performance thin-layer chromatography fingerprints and direct analysis in real time mass spectra for profiling of natural products like propolis. J Chromatogr A 2014; 1328:104-12. [DOI: 10.1016/j.chroma.2013.12.053] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/16/2013] [Accepted: 12/17/2013] [Indexed: 10/25/2022]
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174
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Wang L, Chen T, Zeng S, Qu H. Quality by design study of the direct analysis in real time mass spectrometry response. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:278-285. [PMID: 24346961 DOI: 10.1007/s13361-013-0779-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 10/09/2013] [Accepted: 10/20/2013] [Indexed: 06/03/2023]
Abstract
A mass spectrometry method has been developed using the Quality by Design (QbD) principle. Direct analysis in real time mass spectrometry (DART-MS) was adopted to analyze a pharmaceutical preparation. A fishbone diagram for DART-MS and the Plackett-Burman design were utilized to evaluate the impact of a number of factors on the method performance. Multivariate regression and Pareto ranking analysis indicated that the temperature, determined distance, and sampler speed were statistically significant (P < 0.05). Furthermore, the Box-Behnken design combined with response surface analysis was then employed to study the relationships between these three factors and the quality of the DART-MS analysis. The analytical design space of DART-MS was thus constructed and its robustness was validated. In this presented approach, method performance was mathematically described as a composite desirability function of the critical quality attributes (CQAs). Two terms of method validation, including analytical repeatability and method robustness, were carried out at an operating work point. Finally, the validated method was successfully applied to the pharmaceutical quality assurance in different manufacturing batches. These results revealed that the QbD concept was practical in DART-MS method development. Meanwhile, the determined quality was controlled by the analytical design space. This presented strategy provided a tutorial to the development of a robust QbD-compliant mass spectrometry method for industrial quality control.
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Affiliation(s)
- Lu Wang
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, 310058, China
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175
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Ibáñez C, García-Cañas V, Valdés A, Simó C. Direct Mass Spectrometry-Based Approaches in Metabolomics. FUNDAMENTALS OF ADVANCED OMICS TECHNOLOGIES: FROM GENES TO METABOLITES 2014. [DOI: 10.1016/b978-0-444-62651-6.00010-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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176
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Gross JH. Wide-range mass calibration for negative-ion DART mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2014; 20:155-161. [PMID: 24895775 DOI: 10.1255/ejms.1266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A method for accurate mass calibration covering a wide m/z range in negative-ion direct analysis in real time mass spectrometry (DART-MS) is described. It is based on a commercially available tuning solution (Agilent ES tune mix) normally applied in electrospray ionization. This acetonitrile solution is composed of ammonium trifluoroacetate, betaine, 2,4,6-tris(heptafluoropropyl)-1,3,5-triazine, and various symmetrical hexakis-(fluoroalkoxy)-phosphazenes. Upon addition of 2% (v/vl trifluoroacetic acid in negative-ion DART-MS, this mixture yields negative ions covering a range of m/z 69 to m/z 2834. Validity of the calibration procedure is demonstrated on a Fourier transform ion cyclotron resonance mass spectrometer by application to polyethylene glycol diacid and [60]fullerene. Experimental conditions and a mass reference list are provided.
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177
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Wang SZ, Fan X, Zheng AL, Lu Y, Wei XY, Zhao YP, Wang RY, Dou YQ, Wang YH, Wang CF, Zhang F, Shen Y, Li CY, Liu Z, Liu DY. Evaluation of the Oxidation of Rice Husks with Sodium Hypochlorite Using Gas Chromatography-Mass Spectrometry and Direct Analysis in Real Time-Mass Spectrometry. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.831425] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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178
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Ibáñez C, García-Cañas V, Valdés A, Simó C. Novel MS-based approaches and applications in food metabolomics. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.06.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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179
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Castro-Puyana M, Herrero M. Metabolomics approaches based on mass spectrometry for food safety, quality and traceability. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.05.016] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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180
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Castro-Puyana M, Mendiola JA, Ibañez E. Strategies for a cleaner new scientific discipline of green foodomics. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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181
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The latest developments and applications of mass spectrometry in food-safety and quality analysis. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.08.005] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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182
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Monitoring tea fermentation/manufacturing by direct analysis in real time (DART) mass spectrometry. Food Chem 2013; 141:2060-5. [DOI: 10.1016/j.foodchem.2013.05.054] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 05/02/2013] [Accepted: 05/09/2013] [Indexed: 12/25/2022]
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183
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Screening for trace explosives by AccuTOF™-DART®: An in-depth validation study. Forensic Sci Int 2013; 232:160-8. [DOI: 10.1016/j.forsciint.2013.07.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 06/18/2013] [Accepted: 07/05/2013] [Indexed: 11/18/2022]
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184
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Sevenich R, Bark F, Crews C, Anderson W, Pye C, Riddellova K, Hradecky J, Moravcova E, Reineke K, Knorr D. Effect of high pressure thermal sterilization on the formation of food processing contaminants. INNOV FOOD SCI EMERG 2013. [DOI: 10.1016/j.ifset.2013.07.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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185
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Bridoux MC, Machuron-Mandard X. Capabilities and limitations of direct analysis in real time orbitrap mass spectrometry and tandem mass spectrometry for the analysis of synthetic and natural polymers. RAPID COMMUNICATIONS IN MASS SPECTROMETRY 2013; 27:2057-70. [PMID: 23943327 DOI: 10.1002/rcm.6664] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 06/19/2013] [Accepted: 06/20/2013] [Indexed: 05/14/2023]
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186
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Direct analysis in real time—a critical review on DART-MS. Anal Bioanal Chem 2013; 406:63-80. [DOI: 10.1007/s00216-013-7316-0] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 12/24/2022]
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187
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Krieger S, Hayen H, Schmitz OJ. Quantification of coumarin in cinnamon and woodruff beverages using DIP-APCI-MS and LC-MS. Anal Bioanal Chem 2013; 405:8337-45. [PMID: 23912829 DOI: 10.1007/s00216-013-7238-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/07/2013] [Accepted: 07/09/2013] [Indexed: 10/26/2022]
Abstract
The use of the direct inlet probe-atmospheric-pressure chemical ionization (DIP-APCI) ion source developed in our laboratory coupled to a high resolution Q-TOF MS for the quantitative analysis of coumarin in different cinnamon samples was demonstrated in this study. Extraction of coumarin from various cinnamon samples was followed by DIP-APCI-mass spectrometry (MS) and liquid chromatography (LC)-MS analysis. For quantification, an external calibration with and without the use of stable isotope-labeled coumarin as internal standard was compared. The results obtained by DIP-APCI-MS and LC-MS were in good agreement. Even without the use of an internal standard satisfying linearity (R(2) > 0.997), recovery (94-104% for spiking levels between 100 and 5,000 mg/kg) and intra- and interday repeatability (2.2-13.8%RSD) was demonstrated using DIP-APCI-MS. To reduce the number of samples requiring quantitative analysis, the possibility of semi-quantitative screening of coumarin directly from powdered cinnamon using DIP-APCI-MS was shown. The analysis of woodruff-flavored beverages and cinnamon-flavored chewing gum by DIP-APCI-MS resulted in the formation of an artifact interfering with coumarin detection. As with other ambient ionization methods, special attention has to be paid to possible spectral interferences due to isobaric substances present in the sample matrix or formed from matrix components after ionization. The temperature-programmed vaporization in DIP-APCI-MS combined with the use of stable isotope-labeled coumarin as internal standard helped in recognizing this interference.
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Affiliation(s)
- Sonja Krieger
- Institute for Pure and Applied Mass Spectrometry, University of Wuppertal, Gauss-Str. 20, 42119, Wuppertal, Germany
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188
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Nemes P, Hoover WJ, Keire DA. High-throughput differentiation of heparin from other glycosaminoglycans by pyrolysis mass spectrometry. Anal Chem 2013; 85:7405-12. [PMID: 23841449 DOI: 10.1021/ac401318q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sensors with high chemical specificity and enhanced sample throughput are vital to screening food products and medical devices for chemical or biochemical contaminants that may pose a threat to public health. For example, the rapid detection of oversulfated chondroitin sulfate (OSCS) in heparin could prevent reoccurrence of heparin adulteration that caused hundreds of severe adverse events including deaths worldwide in 2007-2008. Here, rapid pyrolysis is integrated with direct analysis in real time (DART) mass spectrometry to rapidly screen major glycosaminoglycans, including heparin, chondroitin sulfate A, dermatan sulfate, and OSCS. The results demonstrate that, compared to traditional liquid chromatography-based analyses, pyrolysis mass spectrometry achieved at least 250-fold higher sample throughput and was compatible with samples volume-limited to about 300 nL. Pyrolysis yielded an abundance of fragment ions (e.g., 150 different m/z species), many of which were specific to the parent compound. Using multivariate and statistical data analysis models, these data enabled facile differentiation of the glycosaminoglycans with high throughput. After method development was completed, authentically contaminated samples obtained during the heparin crisis by the FDA were analyzed in a blinded manner for OSCS contamination. The lower limit of differentiation and detection were 0.1% (w/w) OSCS in heparin and 100 ng/μL (20 ng) OSCS in water, respectively. For quantitative purposes the linear dynamic range spanned approximately 3 orders of magnitude. Moreover, this chemical readout was successfully employed to find clues in the manufacturing history of the heparin samples that can be used for surveillance purposes. The presented technology and data analysis protocols are anticipated to be readily adaptable to other chemical and biochemical agents and volume-limited samples.
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Affiliation(s)
- Peter Nemes
- Division of Chemistry and Materials Science, Center for Devices and Radiological Health, Center for Drug Evaluation and Research, Food and Drug Administration (FDA), United States.
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189
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Rodriguez-Lafuente A, Mirnaghi FS, Pawliszyn J. Determination of cocaine and methadone in urine samples by thin-film solid-phase microextraction and direct analysis in real time (DART) coupled with tandem mass spectrometry. Anal Bioanal Chem 2013; 405:9723-7. [PMID: 23685960 DOI: 10.1007/s00216-013-6993-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/30/2013] [Accepted: 04/16/2013] [Indexed: 11/25/2022]
Abstract
The use of thin-film solid-phase microextraction (SPME) as the sampling preparation step before direct analysis in real time (DART) was evaluated for the determination of two prohibited doping substances, cocaine and methadone, in urine samples. Results showed that thin-film SPME improves the detectability of these compounds: signal-to-blank ratios of 5 (cocaine) and 13 (methadone) were obtained in the analysis of 0.5 ng/ml in human urine. Thin-film SPME also provides efficient sample cleanup, avoiding contamination of the ion source by salt residues from the urine samples. Extraction time was established in 10 min, thus providing relatively short analysis time and high throughput when combined with a 96-well shaker and coupled with DART technique.
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Affiliation(s)
- Angel Rodriguez-Lafuente
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
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190
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Shen L, Zhang J, Yang Q, Manicke NE, Ouyang Z. High throughput paper spray mass spectrometry analysis. Clin Chim Acta 2013; 420:28-33. [DOI: 10.1016/j.cca.2012.10.025] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 10/10/2012] [Indexed: 01/03/2023]
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191
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Collection method for chemical particulates on surfaces with detection using thermal desorption-ion trap mass spectrometry. Anal Chim Acta 2013; 776:64-8. [DOI: 10.1016/j.aca.2013.03.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 03/12/2013] [Accepted: 03/17/2013] [Indexed: 11/17/2022]
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192
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Cajka T, Danhelova H, Vavrecka A, Riddellova K, Kocourek V, Vacha F, Hajslova J. Evaluation of direct analysis in real time ionization-mass spectrometry (DART-MS) in fish metabolomics aimed to assess the response to dietary supplementation. Talanta 2013; 115:263-70. [PMID: 24054590 DOI: 10.1016/j.talanta.2013.04.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Revised: 04/02/2013] [Accepted: 04/08/2013] [Indexed: 10/27/2022]
Abstract
Ambient mass spectrometry employing a direct analysis in real time (DART) ion source coupled to a medium high-resolution/accurate mass time-of-flight mass spectrometer (TOFMS) was used as a rapid tool for metabolomic fingerprinting to study the effects of supplemental feeding with cereals (triticale) on the composition of muscle metabolites of common carp (Cyprinus carpio L.). First, the sample extraction and DART-TOFMS instrumental conditions were optimized to obtain the broadest possible representation of ionizable compounds occurring in the extracts obtained from common carp muscle. To this end, a simultaneous (all-in-one) extraction procedure was developed employing water and cyclohexane mixture as the extraction solvents. Under these conditions both polar as well as non-polar metabolites were isolated within a single extraction step. Next, the metabolomic fingerprints (mass spectra) of a large set of common carp muscle extracts were acquired. Finally, the experimental data were statistically evaluated using principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA). Using this approach, differentiation of common carp muscle in response to dietary supplementation (feeding with and without cereals) was feasible. Correct classification was obtained based on the assessment of polar and as well as non-polar extracts fingerprints. The current study showed that DART-TOFMS metabolomic fingerprinting represents a rapid and powerful analytical strategy enabling differentiation of common carp muscles according to feeding history by recording metabolomic fingerprints of ionizable components under the conditions of ambient MS.
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Affiliation(s)
- Tomas Cajka
- Institute of Chemical Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague 6, Czech Republic
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193
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Rajchl A, Drgová L, Grégrová A, Čížková H, Ševčík R, Voldřich M. Rapid determination of 5-hydroxymethylfurfural by DART ionization with time-of-flight mass spectrometry. Anal Bioanal Chem 2013; 405:4737-45. [DOI: 10.1007/s00216-013-6875-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 02/22/2013] [Accepted: 02/25/2013] [Indexed: 11/24/2022]
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194
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Martínez-Villalba A, Vaclavik L, Moyano E, Galceran MT, Hajslova J. Direct analysis in real time high-resolution mass spectrometry for high-throughput analysis of antiparasitic veterinary drugs in feed and food. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:467-475. [PMID: 23280979 DOI: 10.1002/rcm.6466] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 11/07/2012] [Accepted: 11/08/2012] [Indexed: 06/01/2023]
Abstract
RATIONALE Direct analysis in real time (DART) is a novel ionization technique that has been demonstrated in numerous applications as a useful tool for fast and convenient mass spectrometry (MS)-based analysis of complex samples. In this study, the feasibility of DART ionization coupled to a high-resolution mass spectrometer utilizing an orbitrap mass analyzer (orbitrap MS) for high-throughput analysis of antiparasitic veterinary drugs was explored. METHODS To obtain the best DART-orbitrap MS performance, stepwise optimization of instrumental parameter settings, such as ionization gas temperature and mass resolving power, was performed. The optimized method was applied to feed and bovine milk samples previously extracted following a QuEChERS-like strategy. RESULTS Most antiparasitic drugs could be analyzed following the described method. Positive DART ionization provided the protonated molecules [M+H](+); in negative DART ion mode, deprotonated molecules [M-H](-) were observed. As an exception, polyether ionophores could be observed as the sodiated adducts [M+Na](+). Samples of milk and feed were extracted using a modified QuEChERS method for the determination of benzimidazoles and coccidiostats respectively and quantification was carried out by matrix-matched calibration curves. CONCLUSIONS The combination of an analysis time of less than 1 min per sample and the possibility to acquire accurate masses under high mass resolving power (HR) makes the DART-HRMS technique an effective tool for rapid qualitative screening of antiparasitic veterinary drugs. Additionally, the results obtained in this study demonstrated the feasibility of this approach to quantify target analytes at levels down to 1 µg kg(-1) for benzimidazolic compounds in milk and 0.25 mg kg(-1) for coccidiostats in chicken feed.
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Affiliation(s)
- Anna Martínez-Villalba
- Institute of Chemical Technology Prague, Faculty of Food and Biochemical Technology, Department of Food Chemistry and Nutrition, Technická 5, 16628, Prague 6, Czech Republic
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195
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Farré M, Picó Y, Barceló D. Direct peel monitoring of xenobiotics in fruit by direct analysis in real time coupled to a linear quadrupole ion trap-orbitrap mass spectrometer. Anal Chem 2013; 85:2638-44. [PMID: 23356415 DOI: 10.1021/ac3026702] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Study of xenobiotics present in fruit peel by exposing it (without any pretreatment) to direct analysis in real time coupled to a high-resolution orbitrap mass spectrometer (DART-HRMS) is reported for the first time. Variables such as DART gas heater temperature and pressure, source-to-MS distance, and sample velocity are investigated. The analysis of one sample by DART-MS lasts ca. 1 min, and the benefits of both high-resolution and tandem mass spectrometry to elucidate nontarget or unknown compounds are combined. Identification of postharvest fungicides, antioxidants, and sugars in fruit peel is performed in the positive ion mode. A possible elemental formula is suggested for marker components. The lowest imazalil concentration that could be detected by this system is 1 ng (equivalent to a concentration of ca. 300 μg kg(-1)), which is well below the maximum residue limit. For oranges and apples, direct peel exposition demonstrated good interday precision (within 20% for any concentration) and proper linearity (R(2) ≥ 0.99), with a dynamic range from 1 to 2500 ng for apple. A comparison of the results obtained using the direct peel screening DART-based method is made with those obtained by DART analysis of solvent extracts, as well as those obtained analyzing these extracts by ultrahigh-performance liquid chromatography orbitrap mass spectrometry (UHPLC-Orbitrap). The results are in good agreement. Thus, the proposed method proves to be quantitatively accurate with indisputable identification specificity. As an independent method, the approach of direct scanning of peel is of high interest and of potential future within food analysis to guarantee safety, quality, and authenticity.
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Affiliation(s)
- Marinella Farré
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain
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196
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197
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Monge ME, Harris GA, Dwivedi P, Fernández FM. Mass Spectrometry: Recent Advances in Direct Open Air Surface Sampling/Ionization. Chem Rev 2013; 113:2269-308. [DOI: 10.1021/cr300309q] [Citation(s) in RCA: 404] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- María Eugenia Monge
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332,
United States
| | - Glenn A. Harris
- Department
of Biochemistry and
the Mass Spectrometry Research Center, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Prabha Dwivedi
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332,
United States
| | - Facundo M. Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332,
United States
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198
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Li A, Wei P, Hsu HC, Cooks RG. Direct analysis of 4-methylimidazole in foods using paper spray mass spectrometry. Analyst 2013; 138:4624-30. [DOI: 10.1039/c3an00888f] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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199
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Manova RK, Claassen FW, Nielen MWF, Zuilhof H, van Beek TA. Ambient mass spectrometry of covalently bound organic monolayers. Chem Commun (Camb) 2013; 49:922-4. [DOI: 10.1039/c2cc37605a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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200
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Lohne JJ, Andersen WC, Clark SB, Turnipseed SB, Madson MR. Laser diode thermal desorption mass spectrometry for the analysis of quinolone antibiotic residues in aquacultured seafood. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:2854-2864. [PMID: 23136016 DOI: 10.1002/rcm.6414] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE Veterinary drug residue analysis of meat and seafood products is an important part of national regulatory agency food safety programs to ensure that consumers are not exposed to potentially dangerous substances. Complex tissue matrices often require lengthy extraction and analysis procedures to identify improper animal drug treatment. Direct and rapid analysis mass spectrometry techniques have the potential to increase regulatory sample analysis speed by eliminating liquid chromatographic separation. METHODS Flumequine, oxolinic acid, and nalidixic acid were extracted from catfish, shrimp, and salmon using acidified acetonitrile. Extracts were concentrated, dried onto metal sample wells, then rapidly desorbed (6 s) with an infrared diode laser for analysis by laser diode thermal desorption atmospheric pressure chemical ionization with tandem mass spectrometry (LDTD-MS/MS). Analysis was conducted in selected reaction monitoring mode using piromidic acid as internal standard. RESULTS Six-point calibration curves for each compound in extracted matrix were linear with r(2) correlation greater than 0.99. The method was validated by analyzing 23 negative samples and 116 fortified samples at concentrations of 10, 20, 50, 100, and 600 ng/g. Average recoveries of fortified samples were greater than 77% with method detection levels ranging from 2 to 7 /g. Three product ion transitions were acquired per analyte to identify each residue. CONCLUSIONS A rapid method for quinolone analysis in fish muscle was developed using LDTD-MS/MS. The total analysis time was less than 30 s per sample; quinolone residues were detected below 10 ng/g and in most cases residue identity was confirmed. This represents the first application of LDTD to tissue extract analysis. Published 2012. This article is a US Government work and is in the public domain in the USA.
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Affiliation(s)
- Jack J Lohne
- Animal Drugs Research Center, US Food and Drug Administration, Denver Federal Center, Bldg 20, W 6th Ave. and Kipling St., Denver, CO 80225, USA
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