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Wang Y, Li Y, Wang X, Yu D, Nie Z. Rapid detection and classification of hongmu by atmospheric pressure ionization mass spectrometry. Analyst 2022; 147:4857-4865. [DOI: 10.1039/d2an01169g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A schematic diagram of atmospheric pressure glow discharge mass spectrometry (APGD-MS) for hongmu detection.
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Affiliation(s)
- Yiran Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuze Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dehua Yu
- Art and Design School, Beijing Institute of Technology, Beijing, 100081, China
| | - Zongxiu Nie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Desorption atmospheric pressure chemical ionization: A review. Anal Chim Acta 2020; 1130:146-154. [DOI: 10.1016/j.aca.2020.05.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/29/2020] [Accepted: 05/30/2020] [Indexed: 01/27/2023]
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Zhang X, Liu J, Wang Y, Chingin K, Hua R, Zhu L, Rahman MM, Frankevich V, Chen H. Floral volatiles identification and molecular differentiation of Osmanthus fragrans by neutral desorption extractive atmospheric pressure chemical ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33:1861-1869. [PMID: 31414500 DOI: 10.1002/rcm.8554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/24/2019] [Accepted: 08/07/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Floral volatiles are commonly present only at trace amounts and can be degraded or lost during vapor collection, which is often challenging from the analytical standpoint. Osmanthus fragrans Lour. is a widely cultivated plant known for the highly distinct fragrance of its flowers. The identification of specific volatile organic compounds (VOCs) and molecular differentiation of O. fragrans without any chemical pretreatment and VOC collection are important. METHODS Twenty-eight VOCs released by the flowers from ten different cultivars of O. fragrans were identified using neutral desorption extractive atmospheric pressure chemical ionization mass spectrometry (ND-EAPCI-MS) without any chemical pretreatment or VOC collection. Chemical identification was performed by high-resolution MSn analysis and whenever possible was confirmed by the analysis of standards. RESULTS According to our literature search, nine of the identified VOCs, 3-buten-2-one, cyclohexadiene, 2-methylfuran, 3-allylcyclohexene, cuminyl alcohol, hotrienol oxide, epoxy-linalool oxide, N-(2-hydroxyethyl) octanamide, and 3-hydroxy-dihydro-β-ionone, have not been reported in O. fragrans in earlier studies. Confident differentiation between ten different cultivars of O. fragrans was achieved by the principal component analysis of the mass spectrometric results. CONCLUSIONS The results of our ND-EAPCI-MS analysis substantially increase our knowledge about the chemistry of the O. fragrans floral fragrance and demonstrate the power of this technique for direct molecular profiling for plant recognition or in biotechnological applications.
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Affiliation(s)
- Xiaoping Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Jianchuan Liu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Yanan Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Konstantin Chingin
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Rong Hua
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Liang Zhu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Md Matiur Rahman
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Vladimir Frankevich
- National Medical Research Center for Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov of Ministry of Healthcare of Russian Federation, Moscow, 117997, Russian Federation
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
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Zhang X, Ji Y, Zhang Y, Liu F, Chen H, Liu J, Handberg ES, Chagovets VV, Chingin K. Molecular analysis of semen-like odor emitted by chestnut flowers using neutral desorption extractive atmospheric pressure chemical ionization mass spectrometry. Anal Bioanal Chem 2018; 411:4103-4112. [DOI: 10.1007/s00216-018-1487-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/12/2018] [Accepted: 11/07/2018] [Indexed: 11/28/2022]
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Internal Extractive Electrospray Ionization Mass Spectrometry for Quantitative Determination of Fluoroquinolones Captured by Magnetic Molecularly Imprinted Polymers from Raw Milk. Sci Rep 2017; 7:14714. [PMID: 29116200 PMCID: PMC5676746 DOI: 10.1038/s41598-017-15202-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/23/2017] [Indexed: 12/28/2022] Open
Abstract
Antibiotics contamination in food products is of increasing concern due to their potential threat on human health. Herein solid-phase extraction based on magnetic molecularly imprinted polymers coupled with internal extractive electrospray ionization mass spectrometry (MMIPs-SPE-iEESI-MS) was designed for the quantitative analysis of trace fluoroquinolones (FQs) in raw milk samples. FQs in the raw milk sample (2 mL) were selectively captured by the easily-lab-made magnetic molecularly imprinted polymers (MMIPs), and then directly eluted by 100 µL electrospraying solvent biased with +3.0 kV to produce protonated FQs ions for mass spectrometric characterization. Satisfactory analytical performance was obtained in the quantitative analysis of three kinds of FQs (i.e., norfloxacin, enoxacin, and fleroxacin). For all the samples tested, the established method showed a low limit of detection (LOD ≤ 0.03 µg L−1) and a high analysis speed (≤4 min per sample). The analytical performance for real sample analysis was validated by a nationally standardized protocol using LC-MS, resulting in acceptable relative error values from −5.8% to +6.9% for 6 tested samples. Our results demonstrate that MMIPs-SPE-iEESI-MS is a new strategy for the quantitative analysis of FQs in complex biological mixtures such as raw milk, showing promising applications in food safety control and biofluid sample analysis.
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Guo X, Cui M, Deng M, Liu X, Huang X, Zhang X, Luo L. Molecular differentiation of five Cinnamomum camphora chemotypes using desorption atmospheric pressure chemical ionization mass spectrometry of raw leaves. Sci Rep 2017; 7:46579. [PMID: 28425482 PMCID: PMC5397862 DOI: 10.1038/srep46579] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/17/2017] [Indexed: 12/27/2022] Open
Abstract
Five chemotypes, the isoborneol-type, camphora-type, cineole-type, linalool-type and borneol-type of Cinnamomum camphora (L.) Presl have been identified at the molecular level based on the multivariate analysis of mass spectral fingerprints recorded from a total of 750 raw leaf samples (i.e., 150 leaves equally collected for each chemotype) using desorption atmospheric pressure chemical ionization mass spectrometry (DAPCI-MS). Both volatile and semi-volatile metabolites of the fresh leaves of C. camphora were simultaneously detected by DAPCI-MS without any sample pretreatment, reducing the analysis time from half a day using conventional methods (e.g., GC-MS) down to 30 s. The pattern recognition results obtained using principal component analysis (PCA) was cross-checked by cluster analysis (CA), showing that the difference visualized by the DAPCI-MS spectral fingerprints was validated with 100% accuracy. The study demonstrates that DAPCI-MS meets the challenging requirements for accurate differentiation of all the five chemotypes of C. camphora leaves, motivating more advanced application of DAPCI-MS in plant science and forestry studies.
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Affiliation(s)
- Xiali Guo
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Meng Cui
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Min Deng
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xingxing Liu
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xueyong Huang
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xinglei Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang, Jiangxi 330013, China
| | - Liping Luo
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
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Wang X, Yang M, Wang Z, Zhang H, Wang G, Deng M, Chen H, Luo L. Differentiation Using Microwave Plasma Torch Desorption Mass Spectrometry of Navel Oranges Cultivated in Neighboring Habitats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2488-2494. [PMID: 28269986 DOI: 10.1021/acs.jafc.7b00553] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The molecular fingerprinting of intact fruit samples combined with statistical data analysis can allow the assessment of fruit quality and location of origin. Herein, microwave plasma torch desorption ionization mass spectrometry (MPT-MS) was applied to produce molecular fingerprints for the juice sac and exocarp of navel oranges cultivated in three closely located habitats, and the mass spectrometric fingerprints were differentiated by principal component analysis (PCA). Because of the relatively high temperature and high ionization efficiency of MPT, the volatile aroma compounds and semivolatile chemicals in the navel oranges were sensitively detected and confidently identified by collision induced dissociation (CID). The limit of detection (LOD) of MPT-MS for vanillin was 0.119 μg/L, with the relative standard deviation (RSD, n = 10) of 1.7%. The results showed that MPT-MS could be a powerful analytical platform for the sensitive molecular analysis of fruits at molecular level with high chemical specificity, allowing differentiation between the same sorts grown in neighboring habitats.
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Affiliation(s)
- Xinchen Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology , Nanchang 330013, People's Republic of China
| | - Meiling Yang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology , Nanchang 330013, People's Republic of China
| | - Zhiyuan Wang
- Nanchang County the First Secondary School in Liantang , Nanchang 330046, People's Republic of China
| | - Hua Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology , Nanchang 330013, People's Republic of China
| | - Guofeng Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology , Nanchang 330013, People's Republic of China
| | - Min Deng
- School of Life Sciences, Nanchang University , Nanchang 330031, People's Republic of China
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology , Nanchang 330013, People's Republic of China
| | - Liping Luo
- School of Life Sciences, Nanchang University , Nanchang 330031, People's Republic of China
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Zhu Z, Jiang T, Xiong X, Zou W. A microwave plasma torch quadrupole mass spectrometer for monitoring trace levels of lead and cadmium in water. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30 Suppl 1:44-50. [PMID: 27539414 DOI: 10.1002/rcm.7636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE The microwave plasma torch (MPT) is a low power-consumption and easily operated plasma generator. As an ambient ion source, the MPT can be coupled with various mass spectrometers and applied in real-time analysis of metal elements in water for the demands of environmental control and water quality inspection. METHODS We constructed a quadrupole mass spectrometer with an MPT as the ion source to detect directly trace levels of lead and cadmium in water. Without any pretreatments,water samples were first pneumatically nebulized with a desolvation unit, then flowed through the central tube of the MPT and finally entered the plasma. After that, the metal ions produced were introduced into the mass spectrometer to be analyzed via an atmospheric inlet of a stainless steel capillary tube. RESULTS The MPT mass spectra of lead and cadmium ions were characterized with clear unit isotopic resolution. The sensitivity reached levels of 20 ng/L for lead and 72.7 ng/L for cadmium in water, respectively. The linear response range covered at least 2 orders of magnitude. Moreover, a single aqueous sample could be completely analyzed within 3 minutes, providing reasonably relative standard deviation values. CONCLUSIONS Our results demonstrated that this MPT mass spectrometer is a useful tool for the monitoring of lead and cadmium ions in water, which makes it a potential alternative to ICP-MS, to be used in the fields of environmental control and water quality and foodstuff safety inspection. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Zhiqiang Zhu
- School of Chemistry and Chemical Engineering, Shangrao Normal University, Jiangxi, 334001, China
| | - Tao Jiang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Xiaohong Xiong
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Wei Zou
- Department of Infectious Diseases, the 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, China
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Xiong X, Jiang T, Zhou R, Wang S, Zou W, Zhu Z. Microwave plasma torch mass spectrometry for the direct detection of copper and molybdenum ions in aqueous liquids. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:369-377. [PMID: 27194522 DOI: 10.1002/jms.3768] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/21/2016] [Accepted: 03/26/2016] [Indexed: 06/05/2023]
Abstract
Microwave plasma torch (MPT) is a simple and low power-consumption ambient ion source. And the MPT Mass spectra of many metal elements usually exhibit some novel features different from their inductively coupled plasma (ICP) mass spectra, which may be helpful for metal element analysis. Here, we presented the results about the MPT mass spectra of copper and molybdenum elements by a linear ion trap mass spectrometer (LTQ). The generated copper or molybdenum contained ions in plasma were characterized further in collision-induced dissociated (CID) experiments. These researches built a novel, direct and sensitive method for the direct analysis of trace levels of copper and molybdenum in aqueous liquids. Quantitative results showed that the limit of detection (LOD) by using MS(2) procedure was estimated to be 0.265 µg/l (ppb) for copper and 0.497 µg/l for molybdenum. The linear dynamics ranges cover at least 2 orders of magnitude and the analysis of a single aqueous sample can be completed in 5-6 min with a reasonable semi-quantitative sense. Two practical aqueous samples, milk and urine, were also analyzed qualitatively with reasonable recovery rates and RSD. These experimental data demonstrated that the MPT MS is able to turn into a promising and hopeful tool in field analysis of copper and molybdenum ions in water and some aqueous media, and can be applied in many fields, such as environmental controlling, hydrogeology, and water quality inspection. Moreover, MPT MS could also be used as the supplement of ICP-MS for the rapid and in-situ analysis of metal ions. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xiaohong Xiong
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Tao Jiang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Runzhi Zhou
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Shangxian Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Wei Zou
- Department of Infectious Diseases, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Zhiqiang Zhu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
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Smoluch M, Mielczarek P, Silberring J. Plasma-based ambient ionization mass spectrometry in bioanalytical sciences. MASS SPECTROMETRY REVIEWS 2016; 35:22-34. [PMID: 25988731 DOI: 10.1002/mas.21460] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 12/24/2014] [Indexed: 05/28/2023]
Abstract
Plasma-based ambient ionization mass spectrometry techniques are gaining growing interest due to their specific features, such as the need for little or no sample preparation, its high analysis speed, and the ambient experimental conditions. Samples can be analyzed in gas, liquid, or solid forms. These techniques allow for a wide range of applications, like warfare agent detection, chemical reaction control, mass spectrometry imaging, polymer identification, and food safety monitoring, as well as applications in biomedical science, e.g., drug and pharmaceutical analysis, medical diagnostics, biochemical analysis, etc. Until now, the main drawback of plasma-based techniques is their quantitative aspect, but a lot of efforts have been done to improve this obstacle.
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Affiliation(s)
- Marek Smoluch
- Faculty of Materials Science and Ceramics, Department of Biochemistry and Neurobiology, AGH University of Science and Technology, Mickiewicza 30, 30-059, Krakow, Poland
| | - Przemyslaw Mielczarek
- Faculty of Materials Science and Ceramics, Department of Biochemistry and Neurobiology, AGH University of Science and Technology, Mickiewicza 30, 30-059, Krakow, Poland
- AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Mickiewicza 30, 30-059, Krakow, Poland
| | - Jerzy Silberring
- Faculty of Materials Science and Ceramics, Department of Biochemistry and Neurobiology, AGH University of Science and Technology, Mickiewicza 30, 30-059, Krakow, Poland
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowskiej St. 34, 41-819, Zabrze, Poland
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Vaikkinen A, Shrestha B, Koivisto J, Kostiainen R, Vertes A, Kauppila TJ. Laser ablation atmospheric pressure photoionization mass spectrometry imaging of phytochemicals from sage leaves. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:2490-6. [PMID: 25366396 DOI: 10.1002/rcm.7043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/22/2014] [Accepted: 09/03/2014] [Indexed: 05/03/2023]
Abstract
RATIONALE Despite fast advances in ambient mass spectrometry imaging (MSI), the study of neutral and nonpolar compounds directly from biological matrices remains challenging. In this contribution, we explore the feasibility of laser ablation atmospheric pressure photoionization (LAAPPI) for MSI of phytochemicals in sage (Salvia officinalis) leaves. METHODS Sage leaves were studied by LAAPPI-time-of-flight (TOF)-MSI without any sample preparation. Leaf mass spectra were also recorded with laser ablation electrospray ionization (LAESI) mass spectrometry and the spectra were compared with those obtained by LAAPPI. RESULTS Direct probing of the plant tissue by LAAPPI efficiently produced ions from plant metabolites, including neutral and nonpolar terpenes that do not have polar functional groups, as well as oxygenated terpene derivatives. Monoterpenes and monoterpenoids could also be studied from sage by LAESI, but only LAAPPI was able to detect larger nonpolar compounds, such as sesquiterpenes and triterpenoid derivatives, from the leaf matrix. Alternative MSI methods for nonpolar compounds, such as desorption atmospheric pressure photoionization (DAPPI), do not achieve as good spatial resolution as LAAPPI (<400 µm). CONCLUSIONS We show that MSI with LAAPPI is a useful tool for concurrently studying the distribution of polar and nonpolar compounds, such as phytochemicals, directly from complex biological samples, and it can provide information that is not available by other, established methods.
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Affiliation(s)
- Anu Vaikkinen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, P.O. Box 56 (Viikinkaari 5 E), 00014 University of Helsinki, Helsinki, Finland
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Jarmusch AK, Cooks RG. Emerging capabilities of mass spectrometry for natural products. Nat Prod Rep 2014; 31:730-8. [PMID: 24700087 DOI: 10.1039/c3np70121b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Covering up to the end of 2013 A brief history of mass spectrometry in natural products research serves to identify themes which have driven progress in this area of application and in mass spectrometry itself. This account covers six decades of ionization methods, starting with traditional electron ionization and progressing through today's ambient ionization methods. Corresponding developments in mass analyzers are indicated, ranging from sector magnetic fields, through hybrid quadrupole mass filters to miniature ion traps. Current capabilities of mass spectrometry in natural products studies include direct in situ analysis, mass spectrometry imaging, and the study of biosynthetic pathways using metabolomic information. The survey concludes with a discussion of new experiments and capabilities including ion soft landing, preparative mass spectrometry, and accelerated ionic reactions in confined volumes.
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Affiliation(s)
- Alan K Jarmusch
- Purdue University, Department of Chemistry, 560 Oval Drive, West Lafayette, IN, USA.
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Zhang H, Zhu L, Luo L, Wang N, Chingin K, Guo X, Chen H. Direct assessment of phytochemicals inherent in plant tissues using extractive electrospray ionization mass spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10691-10698. [PMID: 24107102 DOI: 10.1021/jf4032469] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
An ambient pressure ionization mass spectrometric strategy called internal extractive electrospray ionization mass spectrometry (iEESI-MS) has been developed and applied for direct profiling of labile phytochemicals inherent in various native plant tissues, including leaves, roots, and fruits. By passing the electrospray solvent through the plant tissue, a variety of phytochemicals, such as amino acids, sugars (e.g., glucose, sucrose, polysaccharides, etc.), and alkaloids, were continuously extracted from the sample interior, driven toward the natural/cut electro-spraying tip, and vaporized into gaseous ions for mass spectrometric interrogation. Phytochemical patterns obtained by iEESI-MS permit a rapid differentiation between various species of ginkgo plant and strawberry maturity stages, as well as characterization of physiological/pathologic conditions of chlorophytum comosum. Our experimental results further demonstrate that the established iEESI-MS approach is potentially useful for direct phytochemomics studies with minimal biodegradation, allowing elucidation of plant metabolism with high speed, specificity, and simplicity of analysis.
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Affiliation(s)
- Hua Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology , Nanchang 330013, People's Republic of China
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