1
|
Cheng Y, Liu Y, Wu Z, Shen C, Li S, Wang H, Chen C. Concept and simulation of a novel dual-layer linear ion trap mass analyzer for micro-electromechanical systems mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2024:14690667241251792. [PMID: 38706254 DOI: 10.1177/14690667241251792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
This paper proposed a dual-layer linear ion trap mass analyzer (dLIT) based on micro-electromechanical systems (MEMS) technology and stacked-layer structure for the development of MEMS mass spectrometry. Its basic performance and potential capabilities were explored by ion trajectory simulations. The theoretical formulas were modified by implementing multipole expansion. The simulation results were confirmed to be highly consistent with theoretical calculations in multiple aspects, including stability diagram, secular frequencies, and mass linearity, with only a deviation of 1-2%. In the boundary ejection mode, close to 100% ejection was achieved in a single dimension by applying extra quadrupole DC voltage. Preliminary simulation results showed that dLIT can achieve a peak width of ∼2 mass units (full width at half maximum, FWHM) for m/z 60 ions even at pressures as high as 50 Pa. Furthermore, the application of AC frequency scanning mode in dLIT was also evaluated, and preliminary simulation results yield a peak width of 0.3-0.4 mass units (FWHM). The dLIT offered several advantages, including high-precision fabrication at the sub-millimeter scale, excellent high-pressure performance, and a clear physical model. It preliminarily proved to be an ideal mass analyzer for MEMS mass spectrometry.
Collapse
Affiliation(s)
- Yupeng Cheng
- University of Science and Technology of China, Hefei, China
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Youjiang Liu
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Zhangxu Wu
- University of Science and Technology of China, Hefei, China
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Chen Shen
- University of Science and Technology of China, Hefei, China
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Shan Li
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Han Wang
- University of Science and Technology of China, Hefei, China
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Chilai Chen
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| |
Collapse
|
2
|
Wang J, Pursell ME, DeVor A, Awoyemi O, Valentine SJ, Li P. Portable mass spectrometry system: instrumentation, applications, and path to 'omics analysis. Proteomics 2022; 22:e2200112. [PMID: 36349734 PMCID: PMC10278091 DOI: 10.1002/pmic.202200112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/11/2022]
Abstract
Mass spectrometry (MS) is an information rich analytical technique and plays a key role in various 'omics studies. Standard mass spectrometers are bulky and operate at high vacuum, which hinder their adoption by the broader community and utility in field applications. Developing portable mass spectrometers can significantly expand the application scope and user groups of MS analysis. This review discusses the basics and recent advancements in the development of key components of portable mass spectrometers including ionization source, mass analyzer, detector, and vacuum system. Further, major areas where portable mass spectrometers are applied are also discussed. Finally, a perspective on the further development of portable mass spectrometers including the potential benefits for 'omics analysis is provided.
Collapse
Affiliation(s)
- Jing Wang
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Madison E. Pursell
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Amanda DeVor
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Olanrewaju Awoyemi
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Stephen J. Valentine
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Peng Li
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| |
Collapse
|
3
|
|
4
|
Evans-Nguyen K, Stelmack AR, Clowser PC, Holtz JM, Mulligan CC. FIELDABLE MASS SPECTROMETRY FOR FORENSIC SCIENCE, HOMELAND SECURITY, AND DEFENSE APPLICATIONS. MASS SPECTROMETRY REVIEWS 2021; 40:628-646. [PMID: 32722885 DOI: 10.1002/mas.21646] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 02/24/2020] [Indexed: 05/26/2023]
Abstract
Mass spectrometry is commonly used in forensic chemistry laboratories for sensitive, definitive analysis. There have been significant efforts to bring mass spectrometry analysis on-site through the development of ruggedized, fieldable instruments. Testing samples in the field is of particular interest in forensic science, homeland security, and defense applications. In forensic chemistry, testing seized drugs in the field can significantly improve efficiencies in processing of related criminal cases. The screening of passengers and luggage at transportation hubs is a critical need for homeland security for which mass spectrometry is well suited to provide definitive answers with low false positive rates. Mass spectrometry can yield reliable data for military personnel testing sites for potential chemical weapons release. To meet the needs of the forensic and security communities fieldable mass spectrometers based on membrane inlet systems and hybrid gas chromatography systems have been developed and commercialized. More recently developed ambient ionization mass spectrometry methods can eliminate the time, equipment, and expertise associated with sample preparation, and so are especially appealing for on-site analysis. We describe the development of fieldable mass spectrometry systems, with emphasis on commercially available systems that have been deployed for on-site analysis of seized drugs, chemical warfare agents, explosives, and other analytes of interest to the forensic and security communities. © 2020 John Wiley & Sons Ltd. Mass Spec Rev.
Collapse
Affiliation(s)
- Kenyon Evans-Nguyen
- Department of Chemistry, Biochemistry and Physics, University of Tampa, Tampa, FL
| | | | | | - Jessica M Holtz
- Department of Chemistry, Illinois State University, Normal, IL
| | | |
Collapse
|
5
|
Qi L, Rui X, Zhang Y, Sun L, Zheng Y. Vacuum leakage location based on cross-correlation wavenumber domain imaging method with a 64-element ultrasonic sensor array. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:094902. [PMID: 34598524 DOI: 10.1063/5.0055438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Vacuum leakage is extremely harmful to aircraft and needs to be discovered as soon as possible. Aiming at the problem of vacuum leakage location, this paper proposes a cross-correlation wavenumber domain imaging method. This method obtains the time-space domain information of the leakage elastic wave through the array sensor and transforms it into the frequency-wavenumber domain through the three-dimensional Fourier transform. The direction of the maximum value of the wavenumber vector represents the direction of the leakage source. In the algorithm, the cross-correlation operation is added, and the synchronous acquisition of multiple array elements is replaced by the polling scan method, which greatly improves the possibility of the realization of the algorithm. A 64-element ultrasonic sensor was fabricated and the method was verified. The results show that the method proposed in this paper can realize the continuous leakage signal direction of the planar structure and is applicable to the leakage holes of different apertures, and it has the potential for application on orbiting spacecraft and aircraft.
Collapse
Affiliation(s)
- Lei Qi
- Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
| | - Xiaobo Rui
- State Key Laboratory of Precision Measurement Technology and Instrument, Tianjin University, Tianjin 300072, China
| | - Yu Zhang
- State Key Laboratory of Precision Measurement Technology and Instrument, Tianjin University, Tianjin 300072, China
| | - Lichen Sun
- Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
| | - Yue Zheng
- Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
| |
Collapse
|
6
|
Abstract
Performing mass spectrometry in a low-vacuum environment can markedly reduce the cost, size, and power consumption of instrumentation by reducing the workload of the pumping system. Under a low-vacuum environment, ions in a quadrupole mass filter do not have sufficient kinetic energy in the axial direction to reach the detector for mass analysis. To resolve this problem and develop a mass spectrometer suitable for a low-vacuum environment, a mass analysis method is proposed where a drift gas is used to supply energy to the ions. A simulation model was constructed in COMSOL Multiphysics, and a simple experimental device was built to validate the proposed method. The simulation results showed that this method effectively solves these problems, and the obtained spectral peak was superior to that without drift gas flow regarding spectral peak intensity and width. The experimental results showed that the proposed method separated ions with different mass-to-charge ratios at a pressure of 20 Pa. This work provides a theoretical foundation for the development of low-vacuum mass spectrometry, which will promote portability, provide a lower threshold of use, and expand the fields of application for mass spectrometers.
Collapse
|
7
|
Meng X, Tang C, Zhang C, Li D, Xu W, Zhai Y. A "Brick" Mass Spectrometer with Photoionization for Direct Analysis of Trace Volatile Compounds. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:961-968. [PMID: 32233377 DOI: 10.1021/jasms.0c00019] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With high portability and favorable performance, miniature mass spectrometers have become one of the most attractive tools for on-site analysis of trace volatile compounds. Based on the "Brick" mass spectrometer (BMS) developed previously, a hand-held BMS integrated with a photoionization source (PI-BMS) was developed in this study for volatile compound analysis. With compact dimensions of 30 cm × 18.5 cm × 27.6 cm (length × width × height), the PI-BMS was equipped with a 10.6 eV UV lamp and capable of generating molecular ions. The capabilities of qualitative and quantitative analyses for different volatile samples were demonstrated and characterized. Under optimized conditions, high detection sensitivity in open air was obtained for the PI-BMS with a limit of detection (LOD) of ∼10 ppbv. As demonstrations of mixture analysis, four different fresh fruits were directly analyzed using PI-BMS, observing characteristic mass spectra for each type of fruit.
Collapse
Affiliation(s)
- Xiangzhi Meng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Caowei Tang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Changxin Zhang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Dayu Li
- School of Computer Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Wei Xu
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Yanbing Zhai
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| |
Collapse
|
8
|
McCullough BJ, Patel K, Francis R, Cain P, Douce D, Whyatt K, Bajic S, Lumley N, Hopley C. Atmospheric Solids Analysis Probe Coupled to a Portable Mass Spectrometer for Rapid Identification of Bulk Drug Seizures. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:386-393. [PMID: 32031401 DOI: 10.1021/jasms.9b00020] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The emergence of ambient ionization techniques and their combination with smaller, cheaper mass spectrometers is beginning to make real the possibility of mass spectrometry measurements being made routinely outside of traditional laboratory settings. Here, we describe the development of an atmospheric solids analysis probe (ASAP) source for a commercially available miniaturized, single-quadrupole mass spectrometer and subsequent modification of the instrument to allow it to run as a deployable system; we further go on to describe the application of this instrument to the identification of the contents of drug seizures. For the drug seizure analysis, a small quantity of the material (powder, tablet, resin, etc.) was dissolved in ethanol and shaken to extract the analytes, the resulting solutions were then sampled by dipping a sealed glass capillary into the solution prior to analysis by ASAP-MS. Identification of the contents of the seizures was carried out using a NIST searching approach utilizing a bespoke spectral library containing 46 compounds representative of those most commonly encountered in UK forensic laboratories. In order to increase confidence in identification the library sample and subsequent analyses were carried out using a four-channel acquisition method; each channel in this method used a different cone voltage (15, 30, 50, and 70 V) inducing differing levels of in-source fragmentation in each channel; the match score across each channel was then used for identification. Using this developed method, a set of 50 real-life drug samples was analyzed with each of these being identified correctly using the library searching method.
Collapse
Affiliation(s)
- Bryan J McCullough
- National Measurement Laboratory , LGC , Queen's Road , Teddington TW11 0LY , UK
| | - Kirtan Patel
- Eurofins Forensic Services , Queens Road , Teddington TW11 0LY , UK
| | - Ryan Francis
- Eurofins Forensic Services , Queens Road , Teddington TW11 0LY , UK
| | - Peter Cain
- Eurofins Forensic Services , Queens Road , Teddington TW11 0LY , UK
| | - David Douce
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Kate Whyatt
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Steve Bajic
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Nicola Lumley
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Chris Hopley
- National Measurement Laboratory , LGC , Queen's Road , Teddington TW11 0LY , UK
| |
Collapse
|
9
|
Gilliland WM, Ramsey JM. Development of a Microchip CE-HPMS Platform for Cell Growth Monitoring. Anal Chem 2018; 90:13000-13006. [DOI: 10.1021/acs.analchem.8b03708] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
10
|
Riggio GM, Chow JC, Cropper PM, Wang X, Yatavelli RLN, Yang X, Watson JG. Feasibility of coupling a thermal/optical carbon analyzer to a quadrupole mass spectrometer for enhanced PM 2.5 speciation. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2018; 68:463-476. [PMID: 29121482 DOI: 10.1080/10962247.2017.1394928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/26/2017] [Accepted: 09/27/2017] [Indexed: 06/07/2023]
Abstract
UNLABELLED A thermal/optical carbon analyzer (TOA), normally used for quantification of organic carbon (OC) and elemental carbon (EC) in PM2.5 (fine particulate matter) speciation networks, was adapted to direct thermally evolved gases to an electron impact quadrupole mass spectrometer (QMS), creating a TOA-QMS. This approach produces spectra similar to those obtained by the Aerodyne aerosol mass spectrometer (AMS), but the ratios of the mass to charge (m/z) signals differ and must be remeasured using laboratory-generated standards. Linear relationships are found between TOA-QMS signals and ammonium (NH4+), nitrate (NO3-), and sulfate (SO42-) standards. For ambient samples, however, positive deviations are found for SO42-, compensated by negative deviations for NO3-, at higher concentrations. This indicates the utility of mixed-compound standards for calibration or separate calibration curves for low and high ion concentrations. The sum of the QMS signals across all m/z after removal of the NH4+, NO3-, and SO42- signals was highly correlated with the carbon content of oxalic acid (C₂H₂O₄) standards. For ambient samples, the OC derived from the TOA-QMS method was the same as the OC derived from the standard IMPROVE_A TOA method. This method has the potential to reduce complexity and costs for speciation networks, especially for highly polluted urban areas such as those in Asia and Africa. IMPLICATIONS Ammonium, nitrate, and sulfate can be quantified by the same thermal evolution analysis applied to organic and elemental carbon. This holds the potential to replace multiple parallel filter samples and separate laboratory analyses with a single filter and a single analysis to account for a large portion of the PM2.5 mass concentration.
Collapse
Affiliation(s)
- Gustavo M Riggio
- a Division of Atmopsheric Sciences, Desert Research Institute , Reno , NV , USA
| | - Judith C Chow
- a Division of Atmopsheric Sciences, Desert Research Institute , Reno , NV , USA
- b State Key Laboratory of Loess and Quaternary Geology (SKLLQG) , Institute of Earth Environment, Chinese Academy of Sciences , Xi'an , People's Republic of China
| | - Paul M Cropper
- a Division of Atmopsheric Sciences, Desert Research Institute , Reno , NV , USA
| | - Xiaoliang Wang
- a Division of Atmopsheric Sciences, Desert Research Institute , Reno , NV , USA
| | | | - Xufei Yang
- d Montana Tech of the University of Montana , Butte , MT , USA
| | - John G Watson
- a Division of Atmopsheric Sciences, Desert Research Institute , Reno , NV , USA
- b State Key Laboratory of Loess and Quaternary Geology (SKLLQG) , Institute of Earth Environment, Chinese Academy of Sciences , Xi'an , People's Republic of China
| |
Collapse
|
11
|
Gilliland WM, Mellors JS, Ramsey JM. Coupling Microchip Electrospray Ionization Devices with High Pressure Mass Spectrometry. Anal Chem 2017; 89:13320-13325. [DOI: 10.1021/acs.analchem.7b03484] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
12
|
Schepens E, Inman S, McCullough BJ, Hopley C. Rapid confirmation and quantitation of drugs-of-abuse in oral fluid using a low cost, small footprint mass spectrometer. Forensic Chem 2017. [DOI: 10.1016/j.forc.2017.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
13
|
Cox JR, Alsenani M, Miller SE, Roush JA, Shi R, Ow H, Chang S, Kmetz AA, Eichmann SL, Poitzsch ME. Pyrolyzable Nanoparticle Tracers for Environmental Interrogation and Monitoring. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13111-13120. [PMID: 28291944 DOI: 10.1021/acsami.6b16050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Environmental tracing applications require materials that can be detected in complex fluids composed of multiple phases and contaminants. Moreover, large libraries of tracers are necessary in order to mitigate memory effects and to deploy multiple tracers simultaneously in complex oil fields. Herein, we disclose a novel approach based on the thermal decomposition of polymeric nanoparticles comprised of styrenic and methacrylic monomers. Polymeric nanoparticles derived from these monomers cleanly decompose into their constituent monomers at elevated temperatures, thereby maximizing atom economy wherein the entire nanoparticle mass contributes to the generation of detectable units. A total of ten unique single monomer particles and three dual-monomer particles were synthesized using semicontinuous monomer starved addition polymerization. The pyrolysis gas chromatography-flame ionization detection/mass spectrometry (GC-FID/MS) behavior of these particles was studied using high-pressure mass spectrometry. The programmable nature of our methodology permits simultaneous removal of contaminants and subsequent identification and quantification in a single analytical step.
Collapse
Affiliation(s)
- Jason R Cox
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Mohammed Alsenani
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Scott E Miller
- 908 Devices Inc. , 27 Drydock Avenue, Boston, Massachusetts 02210, United States
| | - James A Roush
- 908 Devices Inc. , 27 Drydock Avenue, Boston, Massachusetts 02210, United States
| | - Rena Shi
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Hooisweng Ow
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Sehoon Chang
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Anthony A Kmetz
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Shannon L Eichmann
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Martin E Poitzsch
- Aramco Research Center-Boston, Aramco Services Company , 400 Technology Square, Cambridge, Massachusetts 02139, United States
| |
Collapse
|