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Kuo PH, Jhong YC, Kuo TC, Hsu YT, Kuo CH, Tseng YJ. A Clinical Breathomics Dataset. Sci Data 2024; 11:203. [PMID: 38355591 PMCID: PMC10866892 DOI: 10.1038/s41597-024-03052-2] [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: 10/03/2023] [Accepted: 02/07/2024] [Indexed: 02/16/2024] Open
Abstract
This study entailed a comprehensive GC‒MS analysis conducted on 121 patient samples to generate a clinical breathomics dataset. Breath molecules, indicative of diverse conditions such as psychological and pathological states and the microbiome, were of particular interest due to their non-invasive nature. The highlighted noninvasive approach for detecting these breath molecules significantly enhances diagnostic and monitoring capacities. This dataset cataloged volatile organic compounds (VOCs) from the breath of individuals with asthma, bronchiectasis, and chronic obstructive pulmonary disease. Uniform and consistent sample collection protocols were strictly adhered to during the accumulation of this extensive dataset, ensuring its reliability. It encapsulates extensive human clinical breath molecule data pertinent to three specific diseases. This consequential clinical breathomics dataset is a crucial resource for researchers and clinicians in identifying and exploring important compounds within the patient's breath, thereby augmenting future diagnostic and therapeutic initiatives.
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Affiliation(s)
- Ping-Hung Kuo
- National Taiwan University Hospital, No. 1, Changde St., Zhongzheng Dist., Taipei City, 100229, Taiwan
| | - Yue-Chen Jhong
- Graduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Tien-Chueh Kuo
- Graduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
- The Metabolomics Core Laboratory, Center of Genomic Medicine, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Yu-Ting Hsu
- Graduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Ching-Hua Kuo
- The Metabolomics Core Laboratory, Center of Genomic Medicine, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
- Drug Research Center, College of Pharmacy, College of Medicine, National Taiwan University, No. 33, Linsen S. Road, Taipei, 10055, Taiwan
- Department of Pharmacy, School of Pharmacy, College of Medicine, National Taiwan University, No. 33, Linsen S. Road, Taipei, 10055, Taiwan
| | - Yufeng Jane Tseng
- Graduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.
- Department of Computer Science and Information Engineering, College of Electrical Engineering and Computer Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.
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Development of a headspace-solid phase microextraction gas chromatography-high resolution mass spectrometry method for analyzing volatile organic compounds in urine: Application in breast cancer biomarker discovery. Clin Chim Acta 2023; 540:117236. [PMID: 36716910 DOI: 10.1016/j.cca.2023.117236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/06/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND AIM Breast cancer (BC) is the leading cause of cancer-related death in females. The development of non-invasive methods for the early diagnosis of BC still remains challenge. Here, we aimed to discover the urinary volatile organic compounds (VOCs) pattern of BC patients and identify potential VOC biomarkers for BC diagnosis. METHODS Urine samples were analyzed by headspace-solid phase microextraction (HS-SPME) combined with gas chromatography-high resolution mass spectrometry (GC-HRMS). To assure reliable analysis, the factors influencing HS-SPME extraction efficiency were comprehensively investigated and optimized by combing the Plackett-Burman design (PBD) with the central composite design (CCD). The established HS-SPME/GC-HRMS method was validated and applied to analyze urine samples from BC patients (n = 80) and healthy controls (n = 88). RESULTS A total number of 134 VOCs belonging to distinct chemical classes were identified by GC-HRMS. BC patients demonstrated unique urinary VOCs pattern. Orthogonal partial least squares-discriminant analysis (OPLS-DA) showed a clear separation between BC patients and healthy controls. Eight potential VOC biomarkers were identified using multivariate and univariate statistical analysis. The predictive ability of candidate VOC biomarkers was further investigated by the random forest (RF) algorithm. The candidate VOC biomarkers yielded 76.3% sensitivity and 85.4% specificity on the training set, and achieved 76.0% sensitivity and 92.3% specificity on the validation set. CONCLUSIONS Overall, this work not only established a standardized HS-SPME/GC-HRMS approach for urinary VOCs analysis, but also highlighted the value of urinary VOCs for BC diagnosis. The knowledge gained from this study paves the way for early diagnosis of BC using urine in a non-invasive manner.
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Woollam M, Grocki P, Schulz E, Siegel AP, Deiss F, Agarwal M. Evaluating Polyvinylidene Fluoride - Carbon Black Composites as Solid Phase Microextraction Coatings for the Detection of Urinary Volatile Organic Compounds by Gas Chromatography-Mass Spectrometry. J Chromatogr A 2022; 1685:463606. [DOI: 10.1016/j.chroma.2022.463606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/23/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
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Keogh RJ, Riches JC. The Use of Breath Analysis in the Management of Lung Cancer: Is It Ready for Primetime? Curr Oncol 2022; 29:7355-7378. [PMID: 36290855 PMCID: PMC9600994 DOI: 10.3390/curroncol29100578] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/22/2022] [Accepted: 09/28/2022] [Indexed: 11/07/2022] Open
Abstract
Breath analysis is a promising non-invasive method for the detection and management of lung cancer. Exhaled breath contains a complex mixture of volatile and non-volatile organic compounds that are produced as end-products of metabolism. Several studies have explored the patterns of these compounds and have postulated that a unique breath signature is emitted in the setting of lung cancer. Most studies have evaluated the use of gas chromatography and mass spectrometry to identify these unique breath signatures. With recent advances in the field of analytical chemistry and machine learning gaseous chemical sensing and identification devices have also been created to detect patterns of odorant molecules such as volatile organic compounds. These devices offer hope for a point-of-care test in the future. Several prospective studies have also explored the presence of specific genomic aberrations in the exhaled breath of patients with lung cancer as an alternative method for molecular analysis. Despite its potential, the use of breath analysis has largely been limited to translational research due to methodological issues, the lack of standardization or validation and the paucity of large multi-center studies. It is clear however that it offers a potentially non-invasive alternative to investigations such as tumor biopsy and blood sampling.
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Effect of household air pollutants on the composition of exhaled breath characterized by solid-phase microextraction and needle-trap devices. Anal Bioanal Chem 2022; 414:5573-5583. [PMID: 35274153 DOI: 10.1007/s00216-022-03997-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/22/2022] [Accepted: 02/28/2022] [Indexed: 01/07/2023]
Abstract
Exposure to household air pollutants is becoming a serious environmental health risk. Various methods can be applied to assess humans' exposure status to indoor pollutants, with breath monitoring being among the best options. Breath sampling is fast and non-invasive, and contains compounds that can be used as markers for evaluating exposure length and estimating internal concentrations of pollutants. However, the distribution of compounds between gas and droplets in breath samples represents one of the key challenges associated with this analytical method. In this work, a needle-trap device (NTD) was prepared by packing the needle with a porous filter, divinyl benzene, and Carboxen to enable the exhaustive capture of both droplet-bound and gaseous components. Furthermore, fiber-based solid-phase microextraction (SPME) was also applied to extract compounds from only the gas phase to distinguish this portion of analytes from the total concentration in the sample. Dynamic, real-time breath sampling was enabled via a new sampling tube equipped with 2 one-way valves, which was specially designed for this work. Both methods provided satisfactory reproducibility, repeatability, and sensitivity, with detection limits as low as 0.05 ng mL-1. To investigate the real-world applicability of the proposed devices, breath samples were obtained from volunteers who had been exposed to candle and incense smoke and aerosol sprays, or had smoked cannabis. The results revealed the high concentration of organic air pollutants in inhaled air (maximum of 215 ng mL-1) and exhaled breath (maximum of 14.4 ng mL-1) and a correlation between the components in inhaled air and exhaled breath. Significantly, the findings further revealed that the developed NTD has enhanced breath-sample determinations, especially for polar compounds, which tend to remain trapped in breath droplets.
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The Potential Use of Volatile Biomarkers for Malaria Diagnosis. Diagnostics (Basel) 2021; 11:diagnostics11122244. [PMID: 34943481 PMCID: PMC8700171 DOI: 10.3390/diagnostics11122244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022] Open
Abstract
Pathogens may change the odor and odor-related biting behavior of the vector and host to enhance pathogen transmission. In recent years, volatile biomarker investigations have emerged to identify odors that are differentially and specifically released by pathogens and plants, or the pathogen-infected or even cancer patients. Several studies have reported odors or volatile biomarkers specifically detected from the breath and skin of malaria-infected individuals. This review will discuss the potential use of these odors or volatile biomarkers for the diagnosis of malaria. This approach not only allows for the non-invasive mean of sample collection but also opens up the opportunity to develop a biosensor for malaria diagnosis in low-resource settings.
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Khatoon Z, Fouad H, Alothman OY, Hashem M, Ansari ZA, Ansari SA. Doped SnO 2 Nanomaterials for E-Nose Based Electrochemical Sensing of Biomarkers of Lung Cancer. ACS OMEGA 2020; 5:27645-27654. [PMID: 33134728 PMCID: PMC7594335 DOI: 10.1021/acsomega.0c04231] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Lung cancer detection includes detection of a pattern formed by multiple volatile organic compounds. An individual material has limited selectivity and hence requires tailoring to improve the selectivity and sensing properties. An electronic nose (e-nose) is a concept/device that can help in achieving selectivity and specificity for multiple volatile organic compounds at the same time by using an array of sensors. In this paper, Co and Ni doping in tin oxide was used to investigate as a sensor material for e-nose development. These were synthesized using a sol-gel method and were characterized for structural, morphological, and elemental assessment using X-ray diffraction, field emission scanning electron microscopy, and Fourier transform infrared spectroscopy, which indicated the formation of the composite nanomaterial of SnO2. These synthesized materials were then used as a working electrode in the form of a screen-printed electrode to determine 1-propanol and isopropyl alcohol (IPA) sensing characteristics. Electrochemical characterization was done by cyclic voltammetry (CV) and electrochemical impedance spectroscopy. In the case of CV studies, well-defined and distinct redox peaks are observed at different potential values indicating the changes due to the dopants. Ni doping in SnO2 shows the highest sensitivity of 2.99 μA/ppb for isopropyl alcohol and 3.11 for 1-propanol, within the detection range. Furthermore, Co-SnO2 shows selectivity for IPA, while Ni-SnO2 is selective to 1-propanol against all other volatile compounds analyzed.
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Affiliation(s)
- Zeenat Khatoon
- Centre
for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi 110025, India
| | - Hassan Fouad
- Applied
Medical Science Dept., Community College, King Saud University, P.O Box 10219, Riyadh 11433, Saudi Arabia
- Biomedical
Engineering Department, Faculty of Engineering, Helwan University, Helwan, 11792, Egypt
| | - Othman Y. Alothman
- Chemical
Engineering Department, College of Engineering, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Hashem
- Dental
Health Department, College of Applied Medical Sciences, King Saud University, P.O Box 10219, Riyadh 11433, Saudi Arabia
| | - Zubaida A. Ansari
- Centre
for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi 110025, India
| | - Shafeeque Ahmed Ansari
- Centre
for Interdisciplinary Research in Basic Science, Jamia Millia Islamia, New Delhi 110025, India
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De Giovanni N, Marchetti D. A Systematic Review of Solid-Phase Microextraction Applications in the Forensic Context. J Anal Toxicol 2020; 44:268-297. [PMID: 31788690 DOI: 10.1093/jat/bkz077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/09/2019] [Accepted: 07/28/2019] [Indexed: 12/13/2022] Open
Abstract
Since the introduction in 1990, the solid-phase microextraction (SPME) technology has brought significant progress in many fields of forensic sciences due to the versatility of this fast and solventless alternative to conventional extraction techniques. A systematic review about SPME applications in forensic context from January 1995 to June 2018 was carried out according to systematic review guidelines. The majority of the reviewed articles (40/133) aimed to identify drugs (cannabinoids, cocaine, opiates, amphetamines, simultaneous detection of different drugs of abuse, prescribed drugs); 29 of the 133 articles focused on the investigation of fatalities; 28 of the 133 papers used headspace SPME technique for the identification of markers of chronic alcohol abuse. Sixteen papers involved this technique for the isolation of volatile organic compounds for the human odor profile and 20 concerned forensic applications regarding living people. Solid-phase microextraction was preferably employed in the headspace mode and many kinds of fibers were employed, although polydimethylsiloxane was the most adaptable to many forensic realities. Gas chromatography/mass spectrometry was more frequently used, probably for the well-established coupling with SPME. Most of the papers validated their method to harmonize the scientific approaches of procedures development. Good outcomes are reported on biological material collected from living people as well as on cadaveric samples. The results obtained by most of the studies about alcohol biomarkers on scalp hair have been adopted by the "Society of Hair Testing" to demonstrate abstinence over a pre-defined time period and to assess chronic excessive alcohol consumption.
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Affiliation(s)
- Nadia De Giovanni
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Francesco Vito 1, 00168 Roma, Italy
| | - Daniela Marchetti
- Fondazione Policlinico A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Roma, Italy
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Monedeiro F, Pomastowski P, Milanowski M, Ligor T, Buszewski B. Monitoring of Bactericidal Effects of Silver Nanoparticles Based on Protein Signatures and VOC Emissions from Escherichia coli and Selected Salivary Bacteria. J Clin Med 2019; 8:E2024. [PMID: 31752439 PMCID: PMC6912796 DOI: 10.3390/jcm8112024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 01/13/2023] Open
Abstract
Escherichia coli and salivary Klebsiella oxytoca and Staphylococcus saccharolyticus were subjected to different concentrations of silver nanoparticles (AgNPs), namely: 12.5, 50, and 100 µg mL-1. Matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF MS) spectra were acquired after specified periods: 0, 1, 4, and 12 h. For study of volatile metabolites, headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry (HS-SPME-GC-MS) was employed-AgNPs were added to bacteria cultures and the headspace was analyzed immediately and after 12 h of incubation. Principal components analysis provided discrimination between clusters of protein profiles belonging to different strains. Canonical correlation, network analysis, and multiple linear regression approach revealed that dimethyl disulfide, dimethyl trisulfide, 2-heptanone, and dodecanal (related to the metabolism of sulfur-containing amino acids and fatty acids synthesis) are exemplary molecular indicators, whose response variation deeply correlated to the interaction with bacteria. Therefore, such species can serve as biomarkers of the agent's effectiveness. The present investigation pointed out that the used approaches can be useful in the monitoring of response to therapeutic treatment based on AgNPs. Furthermore, biochemical mechanisms enrolled in the bactericidal action of nanoparticles can be applied in the development of new agents with enhanced properties.
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Affiliation(s)
- Fernanda Monedeiro
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (F.M.); (P.P.); (M.M.); (T.L.)
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, 87-100 Toruń, Poland
- Department of Chemistry, Faculty of Philosophy, Science and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto CEP 14040-901, Brazil
| | - Paweł Pomastowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (F.M.); (P.P.); (M.M.); (T.L.)
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Maciej Milanowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (F.M.); (P.P.); (M.M.); (T.L.)
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Tomasz Ligor
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (F.M.); (P.P.); (M.M.); (T.L.)
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (F.M.); (P.P.); (M.M.); (T.L.)
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, 87-100 Toruń, Poland
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Abstract
Abstract
This study is focused on finding an optimal preparation of the human scent samples for their detailed chemical analysis in connection with the possible forensic identifications of human individuals in the future. At the present time, the scent identification of people is carried out nearly exclusively using specially trained dogs. It is assumed that the human scent contains a certain group of compounds which allows the identification of people, the so-called human scent signature; however, its chemical composition is completely unknown, as of now. The principal problem of human scent studies consists in the very low concentrations of thousands of the scent compounds, whereas their relative concentrations are usually dramatically different. It seems to be obvious that the most appropriate analytical technique for these thousands of different chemical compounds is GC/MS. However, it is also necessary to find the most suitable sorbent material for human scent collection, an extraction solvent, and a pre-concentration technique. The selection of the appropriate gas chromatographic method is also important to achieve the optimal resolution of the targeted compounds. Of course, in the first instance, it is necessary to decide what it means “the most suitable” for human scent chemical analysis.
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Rudnicka J, Kowalkowski T, Buszewski B. Searching for selected VOCs in human breath samples as potential markers of lung cancer. Lung Cancer 2019; 135:123-129. [DOI: 10.1016/j.lungcan.2019.02.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 01/09/2023]
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12
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Highly porous nanostructured copper oxide foam fiber as a sorbent for head space solid-phase microextraction of BTEX from aqueous solutions. Microchem J 2019. [DOI: 10.1016/j.microc.2018.10.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Doležal P, Furton KG, Lněničková J, Kyjaková P, Škeříková V, Valterová I, Pinc L, Urban Š. Multiplicity of human scent signature. EGYPTIAN JOURNAL OF FORENSIC SCIENCES 2019. [DOI: 10.1186/s41935-019-0112-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Pesesse R, Stefanuto PH, Schleich F, Louis R, Focant JF. Multimodal chemometric approach for the analysis of human exhaled breath in lung cancer patients by TD-GC × GC-TOFMS. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1114-1115:146-153. [PMID: 30745111 DOI: 10.1016/j.jchromb.2019.01.029] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/18/2018] [Accepted: 01/17/2019] [Indexed: 12/21/2022]
Abstract
Lung cancer is the deadliest cancer in developed countries. To reduce its mortality rate, it is important to enhance our capability to detect it at earlier stages by developing early diagnostic methods. In that context, the analysis of exhaled breath is an interesting approach because of the simplicity of the medical act and its non-invasiveness. Thermal desorption comprehensive two-dimensional gas chromatography time of flight mass spectrometry (TD-GC × GC-TOFMS) has been used to characterize and compare the volatile content of human breath of lung cancer patients and healthy volunteers. On the sampling side, the contaminations induced by the bags membrane and further environmental migration of VOCs during and after the sampling have also been investigated. Over a realistic period of 6 h, the concentration of contaminants inside the bag can increase from 2 to 3 folds based on simulated breath samples. On the data processing side, Fisher ratio (FR) and random forest (RF) approaches were applied and compared in regards to their ability to reduce the data dimensionality and to extract the significant information. Both approaches allow to efficiently smooth the background signal and extract significant features (27 for FR and 17 for RF). Principal component analysis (PCA) was used to evaluate the clustering capacity of the different models. For both approaches, a separation along PC-1 was obtained with a variance score around 35%. The combined model provides a partial separation with a PC-1 score of 52%. This proof-of-concept study further confirms the potential of breath analysis for cancer detection but also underlines the importance of quality control over the full analytical procedure, including the processing of the data.
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Affiliation(s)
- R Pesesse
- Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, B6c, Agora District, 4000 Liège, Belgium
| | - P-H Stefanuto
- Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, B6c, Agora District, 4000 Liège, Belgium
| | - F Schleich
- Pneumology and Allergology, GIGA Research Group, CHU of Liège, University of Liege, B35, Hospital District, Liege, Belgium
| | - R Louis
- Pneumology and Allergology, GIGA Research Group, CHU of Liège, University of Liege, B35, Hospital District, Liege, Belgium
| | - J-F Focant
- Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, B6c, Agora District, 4000 Liège, Belgium.
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Giannoukos S, Agapiou A, Brkić B, Taylor S. Volatolomics: A broad area of experimentation. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1105:136-147. [PMID: 30584978 DOI: 10.1016/j.jchromb.2018.12.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/19/2018] [Accepted: 12/13/2018] [Indexed: 01/06/2023]
Abstract
Chemical analysis (detection and monitoring) of compounds associated with the metabolic activities of an organism is at the cutting edge of science. Volatile metabolomics (volatolomics) are applied in a broad range of applications including: biomedical research (e.g. disease diagnostic tools, personalized healthcare and nutrition, etc.), toxicological analysis (e.g. exposure tool to environmental pollutants, toxic and hazardous chemical environments, industrial accidents, etc.), molecular communications, forensics, safety and security (e.g. search and rescue operations). In the present review paper, an overview of recent advances and applications of volatolomics will be given. The main focus will be on volatile organic compounds (VOCs) originating from biological secretions of various organisms (e.g. microorganisms, insects, plants, humans) and resulting fusion of chemical information. Bench-top and portable or field-deployable technologies-systems will also be presented and discussed.
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Affiliation(s)
- S Giannoukos
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland; University of Liverpool, Department of Electrical Engineering and Electronics, Liverpool L69 3GJ, UK
| | - A Agapiou
- University of Cyprus, Department of Chemistry, P.O. Box 20357, 1678 Nicosia, Cyprus.
| | - B Brkić
- BioSense Institute, University of Novi Sad, Dr Zorana Đinđića 1, 21 101 Novi Sad, Serbia
| | - S Taylor
- University of Liverpool, Department of Electrical Engineering and Electronics, Liverpool L69 3GJ, UK; Q Technologies Ltd, 100 Childwall Road, Liverpool L15 6UX, UK.
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Rankin-Turner S, Turner MA, Kelly PF, King RSP, Reynolds JC. Transforming presumptive forensic testing: in situ identification and age estimation of human bodily fluids. Chem Sci 2018; 10:1064-1069. [PMID: 30774902 PMCID: PMC6346410 DOI: 10.1039/c8sc04133d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/06/2018] [Indexed: 11/24/2022] Open
Abstract
A new method utilising an in situ sampling probe coupled with mass spectrometry for rapid identification and age estimation of biofluids.
The ability to achieve rapid, in situ identification and age estimation of human bodily fluids can provide valuable information during the investigation of a crime. A novel direct analysis method now permits the rapid in situ identification and age estimation of human bodily fluids for forensic analysis at crime scenes. A thermal desorption surface sampling probe was developed and coupled with a compact mass spectrometer for the direct analysis of volatile organic compound (VOC) profiles of human bodily fluids within two months and in different environmental conditions, without the need for prior sample preparation. The method is not only capable of identifying bodily fluids and discriminating against common interferent species, but also differentiating between bodily fluid stains of different ages over a time period of two months. This demonstrates the potential for rapid in situ identification and age estimation of bodily fluids without the need for contaminative presumptive tests or time-consuming sample preparation.
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Affiliation(s)
| | - Matthew A Turner
- Department of Chemistry , Loughborough University , Loughborough , LE11 3TU , UK .
| | - Paul F Kelly
- Department of Chemistry , Loughborough University , Loughborough , LE11 3TU , UK .
| | - Roberto S P King
- Foster + Freeman Ltd , Vale Park, Evesham , Worcestershire WR11 1TD , UK
| | - James C Reynolds
- Department of Chemistry , Loughborough University , Loughborough , LE11 3TU , UK .
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Sample preparation and recent trends in volatolomics for diagnosing gastrointestinal diseases. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.08.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Drabińska N, Azeem HA, Krupa-Kozak U. A targeted metabolomic protocol for quantitative analysis of volatile organic compounds in urine of children with celiac disease. RSC Adv 2018; 8:36534-36541. [PMID: 35558911 PMCID: PMC9088856 DOI: 10.1039/c8ra07342b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 10/21/2018] [Indexed: 11/26/2022] Open
Abstract
Volatile organic compounds (VOCs) in biological samples have gained popularity for disease monitoring and diagnosis. Celiac disease (CD) is one of the many prevalent health conditions which are challenging to diagnose. The aim of this study was to optimize a solid phase microextraction followed by gas chromatography-mass spectrometry, for quantitative analysis of a wide range of VOCs in the urine of patients with CD. Multivariate design of experiment was used to optimize the extraction conditions for the analysis of 15 urinary VOCs. Based on the performed experiments, extraction using 2.98 g of sodium chloride and 21 μL of 6 M hydrochloric acid for 15 min at 30 °C, using a CAR/PDMS fiber in headspace mode was found to be the most effective procedure for the analysis of the selected biomarkers. It was also demonstrated that the proposed method could distinguish between children with CD and healthy children based on the profile of VOCs. It is believed that quantitative analysis of these biomarkers will extend our understanding of CD and could be used for monitoring in patients under treatment.
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Affiliation(s)
- Natalia Drabińska
- Department of Chemistry and Biodynamics of Food, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences Tuwima 10 Str. 10-748 Olsztyn Poland +48 89 524 01 24 +48 89 523 46 39
| | - Hafiz Abdul Azeem
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University Naturvetarvägen 14/Sölvegatan 39 A 221 00 Lund Sweden
| | - Urszula Krupa-Kozak
- Department of Chemistry and Biodynamics of Food, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences Tuwima 10 Str. 10-748 Olsztyn Poland +48 89 524 01 24 +48 89 523 46 39
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Ganeev AA, Gubal AR, Lukyanov GN, Arseniev AI, Barchuk AA, Jahatspanian IE, Gorbunov IS, Rassadina AA, Nemets VM, Nefedov AO, Korotetsky BA, Solovyev ND, Iakovleva E, Ivanenko NB, Kononov AS, Sillanpaa M, Seeger T. Analysis of exhaled air for early-stage diagnosis of lung cancer: opportunities and challenges. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4831] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Ghani M, Masoum S, Ghoreishi SM, Cerdà V, Maya F. Nanoparticle-templated hierarchically porous polymer/zeolitic imidazolate framework as a solid-phase microextraction coatings. J Chromatogr A 2018; 1567:55-63. [DOI: 10.1016/j.chroma.2018.06.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 12/13/2022]
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21
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Cavaco C, Pereira JAM, Taunk K, Taware R, Rapole S, Nagarajaram H, Câmara JS. Screening of salivary volatiles for putative breast cancer discrimination: an exploratory study involving geographically distant populations. Anal Bioanal Chem 2018; 410:4459-4468. [PMID: 29732495 DOI: 10.1007/s00216-018-1103-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/05/2018] [Accepted: 04/20/2018] [Indexed: 01/08/2023]
Abstract
Saliva is possibly the easiest biofluid to analyse and, despite its simple composition, contains relevant metabolic information. In this work, we explored the potential of the volatile composition of saliva samples as biosignatures for breast cancer (BC) non-invasive diagnosis. To achieve this, 106 saliva samples of BC patients and controls in two distinct geographic regions in Portugal and India were extracted and analysed using optimised headspace solid-phase microextraction gas chromatography mass spectrometry (HS-SPME/GC-MS, 2 mL acidified saliva containing 10% NaCl, stirred (800 rpm) for 45 min at 38 °C and using the CAR/PDMS SPME fibre) followed by multivariate statistical analysis (MVSA). Over 120 volatiles from distinct chemical classes, with significant variations among the groups, were identified. MVSA retrieved a limited number of volatiles, viz. 3-methyl-pentanoic acid, 4-methyl-pentanoic acid, phenol and p-tert-butyl-phenol (Portuguese samples) and acetic, propanoic, benzoic acids, 1,2-decanediol, 2-decanone, and decanal (Indian samples), statistically relevant for the discrimination of BC patients in the populations analysed. This work defines an experimental layout, HS-SPME/GC-MS followed by MVSA, suitable to characterise volatile fingerprints for saliva as putative biosignatures for BC non-invasive diagnosis. Here, it was applied to BC samples from geographically distant populations and good disease separation was obtained. Further studies using larger cohorts are therefore very pertinent to challenge and strengthen this proof-of-concept study. Graphical abstract ᅟ.
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Affiliation(s)
- Carina Cavaco
- CQM-UMa - Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal
| | - Jorge A M Pereira
- CQM-UMa - Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal.
| | - Khushman Taunk
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India
| | - Ravindra Taware
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India
| | - Srikanth Rapole
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India
| | - Hampapathalu Nagarajaram
- Laboratory of Computational Biology, Centre for DNA Fingerprinting & Diagnostics (CDFD), Nampally, Hyderabad, 500001, India.,Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad, 500 046, India
| | - José S Câmara
- CQM-UMa - Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal.,Faculdade de Ciências Exatas e da Engenharia, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal
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23
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Comparison of common components analysis with principal components analysis and independent components analysis: Application to SPME-GC-MS volatolomic signatures. Talanta 2018; 178:854-863. [DOI: 10.1016/j.talanta.2017.10.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/10/2017] [Accepted: 10/16/2017] [Indexed: 01/17/2023]
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24
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Zou X, Lu Y, Xia L, Zhang Y, Li A, Wang H, Huang C, Shen C, Chu Y. Detection of Volatile Organic Compounds in a Drop of Urine by Ultrasonic Nebulization Extraction Proton Transfer Reaction Mass Spectrometry. Anal Chem 2018; 90:2210-2215. [PMID: 29281786 DOI: 10.1021/acs.analchem.7b04563] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Detection of volatile organic compounds (VOCs) in human urine has potential application value in screening for disease and toxin exposure. However, the current technologies are too slow to detect the concentration of VOCs in fresh urine. In this study, we developed a novel ultrasonic nebulization extraction proton transfer reaction mass spectrometry (UNE-PTR-MS) technology. The urinary VOCs can be rapidly extracted to gaseous VOCs using the UNE system and then delivered using a carrier gas to the PTR-MS instrument for rapid detection. The carrier gas flow and sample size were optimized to 100 mL/min and 100 μL, respectively. The limits of detection (LODs) and response time of the UNE-PTR-MS were evaluated by detecting three VOCs that are common in human urine: methanol, acetaldehyde, and acetone. The LODs determined for methanol (4.47 μg/L), acetaldehyde (1.98 μg/L), and acetone (3.47 μg/L) are 2-3 orders of magnitude lower than the mean concentrations of that in healthy human urine. The response time of the UNE-PTR-MS is 34 s and only 0.66 mL of urine is required for a full scan. The repeatability of this UNE-PTR-MS was evaluated, and the relative standard deviations of 5 independent determinations were between 4.62% and 5.21%. Lastly, the UNE-PTR-MS was applied for detection of methanol, acetaldehyde, and acetone in real human urine to test matrix effects, yielding relative recoveries of between 88.39% and 94.54%. These results indicate the UNE-PTR-MS can be used for the rapid detection of VOCs in a drop of urine and has practical potential for diagnosing disease or toxin exposure.
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Affiliation(s)
- Xue Zou
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Yan Lu
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Lei Xia
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Yating Zhang
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Aiyue Li
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Hongmei Wang
- Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Chaoqun Huang
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Chengyin Shen
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Yannan Chu
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, Anhui 230031, China
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Luková K, Nesvadba R, Uhlíková T, Obenchain DA, Wachsmuth D, Grabow JU, Urban Š. Ab initio conformational analysis of 1,2,3,4-tetrahydroquinoline and the high-resolution rotational spectrum of its lowest energy conformer. Phys Chem Chem Phys 2018; 20:14664-14670. [DOI: 10.1039/c8cp00953h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The tight combination of rotational spectroscopy and quantum-chemical calculations provides an insight into the molecular physics of the lowest energy conformer of 1,2,3,4-tetrahydroquinoline.
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Affiliation(s)
- Kateřina Luková
- Department of Analytical Chemistry
- University of Chemistry and Technology
- Prague 6
- Czech Republic
| | - Radim Nesvadba
- Department of Analytical Chemistry
- University of Chemistry and Technology
- Prague 6
- Czech Republic
| | - Tereza Uhlíková
- Department of Analytical Chemistry
- University of Chemistry and Technology
- Prague 6
- Czech Republic
| | - Daniel A. Obenchain
- Institut für Physikalische Chemie und Elektrochemie
- Wilhelm-Gottfried-Leibniz-Universität Hannover
- 30167 Hannover
- Germany
| | - Dennis Wachsmuth
- Institut für Physikalische Chemie und Elektrochemie
- Wilhelm-Gottfried-Leibniz-Universität Hannover
- 30167 Hannover
- Germany
| | - Jens-Uwe Grabow
- Institut für Physikalische Chemie und Elektrochemie
- Wilhelm-Gottfried-Leibniz-Universität Hannover
- 30167 Hannover
- Germany
| | - Štěpán Urban
- Department of Analytical Chemistry
- University of Chemistry and Technology
- Prague 6
- Czech Republic
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26
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Doležal P, Kyjaková P, Valterová I, Urban Š. Qualitative analyses of less-volatile organic molecules from female skin scents by comprehensive two dimensional gas chromatography–time of flight mass spectrometry. J Chromatogr A 2017; 1505:77-86. [DOI: 10.1016/j.chroma.2017.04.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 04/26/2017] [Accepted: 04/28/2017] [Indexed: 12/11/2022]
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Buszewski B, Milanowski M, Ligor T, Pomastowski P. Investigation of bacterial viability from incubated saliva by application of flow cytometry and hyphenated separation techniques. Electrophoresis 2017; 38:2081-2088. [PMID: 28429817 DOI: 10.1002/elps.201700057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/31/2017] [Accepted: 04/14/2017] [Indexed: 12/23/2022]
Abstract
The aim of the study was determination of bacterial viability in saliva samples and finding a correlation between microbiological and volatile profiles of saliva depending on incubation time. Bacteria colonizing healthy oral cavities were also identified. Twelve healthy adults donated unstimulated saliva samples. Flow cytometry, optical density measurements and colony-forming unit (CFU) counting method were employed for analyses of native and inoculated saliva after 0, 1, 2, 24, and 48 h of incubation. Volatile profiles were acquired using headspace-solid phase microextraction-gas chromatography/mass spectrometry (HS-SPME-GC/MS). Oral bacteria were the most viable within 2 h after collection of saliva. Extension of incubation time to 48 h caused considerable decrease in live bacteria counts and sharp increase in dead bacteria counts. The most prevalent strain was Sphingomonas paucimobilis (26.67%). The number of volatiles raised from 5 to 27 with incubation time and most of them were putrefaction products, such as methanethiol, indole and pyrrole. HS-SPME-GC/MS method is insufficient for volatile profiling of "fresh" saliva and should be directed rather to investigation of bacterial metabolites.
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Affiliation(s)
- Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland.,Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Maciej Milanowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland.,Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Tomasz Ligor
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland.,Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Paweł Pomastowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland.,Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
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Bouhlel J, Ratel J, Abouelkaram S, Mercier F, Travel A, Baéza E, Jondreville C, Dervilly-Pinel G, Marchand P, Le Bizec B, Dubreil E, Mompelat S, Verdon E, Inthavong C, Guérin T, Rutledge DN, Engel E. Solid-phase microextraction set-up for the analysis of liver volatolome to detect livestock exposure to micropollutants. J Chromatogr A 2017; 1497:9-18. [PMID: 28366563 DOI: 10.1016/j.chroma.2017.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 12/28/2022]
Abstract
Starting from a critical analysis of a first "proof of concept" study on the utility of the liver volatolome for detecting livestock exposure to environmental micropollutants (Berge et al., 2011), the primary aim of this paper is to improve extraction conditions so as to obtain more representative extracts by using an extraction temperature closer to livestock physiological conditions while minimizing analytical variability and maximizing Volatile Organic Compound (VOC) abundancies. Levers related to extraction conditions and sample preparation were assessed in the light of both abundance and coefficient of variation of 22 candidate VOC markers identified in earlier volatolomic studies. Starting with a CAR/PDMS fiber and a 30min extraction, the reduction of SPME temperature to 40°C resulted in a significant decrease in the area of 14 candidate VOC markers (p<0.05), mainly carbonyls and alcohols but also a reduction in the coefficient of variation for 17 of them. In order to restore VOC abundances and to minimize variability, two approaches dealing with sample preparation were investigated. By increasing sample defrosting time at 4°C from 0 to 24h yielded higher abundances and lower variabilities for 15 and 13 compounds, respectively. Lastly, by using additives favouring the release of VOCs (1.2g of NaCl) the sensitivity of the analysis was improved with a significant increase in VOC abundances of more than 50% for 13 out of the 22 candidate markers. The modified SPME parameters significantly enhanced the abundances while decreasing the analytical variability for most candidate VOC markers. The second step was to validate the ability of the revised SPME protocol to discriminate intentionally contaminated broiler chickens from controls, under case/control animal testing conditions. After verification of the contamination levels of the animals by national reference laboratories, data analysis by a multivariate chemometric method (Common Components and Specific Weights Analysis - ComDim) showed that the liver volatolome could reveal dietary exposure of broilers to a group of environmental pollutants (PCBs), a veterinary treatment (monensin), and a pesticide (deltamethrin), thus confirming the usefulness of this analytical set-up.
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Affiliation(s)
- Jihéne Bouhlel
- INRA, UR370 QuaPA, MASS laboratory, Saint-Genès-Champanelle, France; INRA, UMR GENIAL, AgroParisTech, Université Paris-Saclay, Massy, France
| | - Jérémy Ratel
- INRA, UR370 QuaPA, MASS laboratory, Saint-Genès-Champanelle, France
| | - Said Abouelkaram
- INRA, UR370 QuaPA, MASS laboratory, Saint-Genès-Champanelle, France
| | - Frédéric Mercier
- INRA, UR370 QuaPA, MASS laboratory, Saint-Genès-Champanelle, France
| | | | | | | | | | | | | | - Estelle Dubreil
- ANSES, Reference laboratory for veterinary drug residues in food, Fougères, France
| | - Sophie Mompelat
- ANSES, Reference laboratory for veterinary drug residues in food, Fougères, France
| | - Eric Verdon
- ANSES, Reference laboratory for veterinary drug residues in food, Fougères, France
| | | | - Thierry Guérin
- ANSES, Laboratory for Food Safety, Maisons-Alfort, France
| | | | - Erwan Engel
- INRA, UR370 QuaPA, MASS laboratory, Saint-Genès-Champanelle, France.
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Filippou O, Bitas D, Samanidou V. Green approaches in sample preparation of bioanalytical samples prior to chromatographic analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1043:44-62. [DOI: 10.1016/j.jchromb.2016.08.040] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/21/2016] [Accepted: 08/27/2016] [Indexed: 01/07/2023]
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30
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Milanowski M, Pomastowski P, Ligor T, Buszewski B. Saliva – Volatile Biomarkers and Profiles. Crit Rev Anal Chem 2017; 47:251-266. [DOI: 10.1080/10408347.2016.1266925] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maciej Milanowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Paweł Pomastowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Tomasz Ligor
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
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31
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Saraji M, Ghani M, Rezaei B, Mokhtarianpour M. Highly porous nanostructured copper foam fiber impregnated with an organic solvent for headspace liquid-phase microextraction. J Chromatogr A 2016; 1469:25-34. [DOI: 10.1016/j.chroma.2016.09.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/19/2016] [Accepted: 09/23/2016] [Indexed: 10/20/2022]
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Rust L, Nizio KD, Forbes SL. The influence of ageing and surface type on the odour profile of blood-detection dog training aids. Anal Bioanal Chem 2016; 408:6349-60. [DOI: 10.1007/s00216-016-9748-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/20/2016] [Accepted: 06/27/2016] [Indexed: 11/28/2022]
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Analysis of Odorants in Marking Fluid of Siberian Tiger (Panthera tigris altaica) Using Simultaneous Sensory and Chemical Analysis with Headspace Solid-Phase Microextraction and Multidimensional Gas Chromatography-Mass Spectrometry-Olfactometry. Molecules 2016; 21:molecules21070834. [PMID: 27347921 PMCID: PMC6273184 DOI: 10.3390/molecules21070834] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/10/2016] [Accepted: 06/15/2016] [Indexed: 01/02/2023] Open
Abstract
Scent-marking is the most effective method of communication in the presence or absence of a signaler. These complex mixtures result in a multifaceted interaction triggered by the sense of smell. The objective was to identify volatile organic compound (VOC) composition and odors emitted by total marking fluid (MF) associated with Siberian tigers (Panthera tigris altaica). Siberian tiger, an endangered species, was chosen because its MF had never been analyzed. Solid phase microextraction (SPME) for headspace volatile collection combined with multidimensional gas chromatography-mass spectrometry-olfactometry for simultaneous chemical and sensory analyses were used. Thirty-two VOCs emitted from MF were identified. 2-acetyl-1-pyrroline, the sole previously identified compound responsible for the "characteristic" odor of P. tigris MF, was identified along with two additional compounds confirmed with standards (urea, furfural) and four tentatively identified compounds (3-methylbutanamine, (R)-3-methylcyclopentanone, propanedioic acid, and 3-hydroxybutanal) as being responsible for the characteristic aroma of Siberian tiger MF. Simultaneous chemical and sensory analyses improved characterization of scent-markings and identified compounds not previously reported in MF of other tiger species. This research will assist animal ecologists, behaviorists, and zookeepers in understanding how scents from specific MF compounds impact tiger and wildlife communication and improve management practices related to animal behavior. Simultaneous chemical and sensory analyses is applicable to unlocking scent-marking information for other species.
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A novel olfactory pathway is essential for fast and efficient blood-feeding in mosquitoes. Sci Rep 2015; 5:13444. [PMID: 26306800 PMCID: PMC4549640 DOI: 10.1038/srep13444] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 07/27/2015] [Indexed: 01/02/2023] Open
Abstract
In mosquitoes, precise and efficient finding of a host animal is crucial for survival. One of the poorly understood aspects of mosquito blood-feeding behavior is how these insects target an optimal site in order to penetrate the skin and blood vessels without alerting the host animal. Here we provide new findings that a piercing structure of the mouthpart of the mosquitoes, the stylet, is an essential apparatus for the stage in blood feeding. Indeed, the stylet possesses a number of sensory hairs located at the tip of the stylet. These hairs house olfactory receptor neurons that express two conventional olfactory receptors of Aedes aegypti (AaOrs), AaOr8 and AaOr49, together with the odorant co-receptor (AaOrco). In vivo calcium imaging using transfected cell lines demonstrated that AaOr8 and AaOr49 were activated by volatile compounds present in blood. Inhibition of gene expression of these AaOrs delayed blood feeding behaviors of the mosquito. Taken together, we identified olfactory receptor neurons in the stylet involved in mosquito blood feeding behaviors, which in turn indicates that olfactory perception in the stylet is necessary and sufficient for mosquitoes to find host blood in order to rapidly acquire blood meals from a host animal.
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Broza YY, Mochalski P, Ruzsanyi V, Amann A, Haick H. Hybrid volatolomics and disease detection. Angew Chem Int Ed Engl 2015; 54:11036-48. [PMID: 26235374 DOI: 10.1002/anie.201500153] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Indexed: 02/06/2023]
Abstract
This Review presents a concise, but not exhaustive, didactic overview of some of the main concepts and approaches related to "volatolomics"-an emerging frontier for fast, risk-free, and potentially inexpensive diagnostics. It attempts to review the source and characteristics of volatolomics through the so-called volatile organic compounds (VOCs) emanating from cells and their microenvironment. It also reviews the existence of VOCs in several bodily fluids, including the cellular environment, blood, breath, skin, feces, urine, and saliva. Finally, the usefulness of volatolomics for diagnosis from a single bodily fluid, as well as ways to improve these diagnostic aspects by "hybrid" approaches that combine VOC profiles collected from two or more bodily fluids, will be discussed. The perspectives of this approach in developing the field of diagnostics to a new level are highlighted.
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Affiliation(s)
- Yoav Y Broza
- The Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003 (Israel)
| | - Pawel Mochalski
- Breath Research Institute and University-Clinic for Anesthesia, The University of Innsbruck and Innsbruck Medical University, Innsbruck (Austria)
| | - Vera Ruzsanyi
- Breath Research Institute and University-Clinic for Anesthesia, The University of Innsbruck and Innsbruck Medical University, Innsbruck (Austria)
| | - Anton Amann
- Breath Research Institute and University-Clinic for Anesthesia, The University of Innsbruck and Innsbruck Medical University, Innsbruck (Austria)
| | - Hossam Haick
- The Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003 (Israel).
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36
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Broza YY, Mochalski P, Ruzsanyi V, Amann A, Haick H. Hybride Volatolomik und der Nachweis von Krankheiten. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Rodionova EI, Kochevalina MY, Kotenkova EV, Morozova OV, Kogun’ GA, Bataeva EL, Ambaryan AV. Detection of volatile organic compounds associated with hepatocellular carcinoma by macrosmatic animals: Approaches to the search for new tumor markers. BIOL BULL+ 2015. [DOI: 10.1134/s1062359015030103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chen PS, Tseng YH, Chuang YL, Chen JH. Determination of volatile organic compounds in water using headspace knotted hollow fiber microextraction. J Chromatogr A 2015; 1395:41-7. [DOI: 10.1016/j.chroma.2015.03.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 03/24/2015] [Accepted: 03/24/2015] [Indexed: 10/23/2022]
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39
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Effect of age and storage conditions on the volatile organic compound profile of blood. Forensic Sci Med Pathol 2014; 10:570-82. [DOI: 10.1007/s12024-014-9610-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2014] [Indexed: 10/24/2022]
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Khatib S, Finberg J, Artoul F, Lavner Y, Mahmood S, Tisch U, Haick H, Aluf Y, Vaya J. Analysis of volatile organic compounds in rats with dopaminergic lesion: Possible application for early detection of Parkinson’s disease. Neurochem Int 2014; 76:82-90. [DOI: 10.1016/j.neuint.2014.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 06/22/2014] [Accepted: 06/30/2014] [Indexed: 11/29/2022]
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41
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Abstract
Since the complexity origin of biological samples, the research trends have been directed to the development of new miniaturized sample preparation techniques. This review provides a comprehensive survey of past and present microextraction methods followed by GC analysis for preconcentration and determination of various analytes in urine samples. These techniques have been classified in three general groups, including liquid-, solid- and membrane-based techniques. The principal of different microextraction methods that are located in each general group as well as their various extraction modes and the recent developments introduced for them has been presented. Subsequently, a comparison survey has been carried out among different microextraction techniques and finally a future perspective has been predicted based on the existing literature.
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Kwak J, Fan M, Harshman SW, Garrison CE, Dershem VL, Phillips JB, Grigsby CC, Ott DK. Evaluation of Bio-VOC Sampler for Analysis of Volatile Organic Compounds in Exhaled Breath. Metabolites 2014; 4:879-88. [PMID: 25532709 PMCID: PMC4279150 DOI: 10.3390/metabo4040879] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 08/26/2014] [Accepted: 09/22/2014] [Indexed: 01/30/2023] Open
Abstract
Monitoring volatile organic compounds (VOCs) from exhaled breath has been used to determine exposures of humans to chemicals. Prior to analysis of VOCs, breath samples are often collected with canisters or bags and concentrated. The Bio-VOC breath sampler, a commercial sampling device, has been recently introduced to the market with growing use. The main advantage for this sampler is to collect the last portion of exhaled breath, which is more likely to represent the air deep in the lungs. However, information about the Bio-VOC sampler is somewhat limited. Therefore, we have thoroughly evaluated the sampler here. We determined the volume of the breath air collected in the sampler was approximately 88 mL. When sampling was repeated multiple times, with the succeeding exhalations applied to a single sorbent tube, we observed linear relationships between the normalized peak intensity and the number of repeated collections with the sampler in many of the breath VOCs detected. No moisture effect was observed on the Tenax sorbent tubes used. However, due to the limitation in the collection volume, the use of the Bio-VOC sampler is recommended only for detection of VOCs present at high concentrations unless repeated collections of breath samples on the sampler are conducted.
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Affiliation(s)
- Jae Kwak
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Air Force Research Laboratory, 711th Human Performance Wing/RHXBC, Wright-Patterson AFB, OH 45433, USA.
| | - Maomian Fan
- Air Force Research Laboratory, 711th Human Performance Wing/RHXBC, Wright-Patterson AFB, OH 45433, USA.
| | - Sean W Harshman
- UES, Air Force Research Laboratory, 711th Human Performance Wing/RHXBC, Wright-Patterson AFB, OH 45433, USA.
| | - Catherine E Garrison
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Air Force Research Laboratory, 711th Human Performance Wing/RHXBC, Wright-Patterson AFB, OH 45433, USA.
| | - Victoria L Dershem
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Air Force Research Laboratory, 711th Human Performance Wing/RHXBC, Wright-Patterson AFB, OH 45433, USA.
| | - Jeffrey B Phillips
- Naval Medical Research Unit-Dayton, Wright-Patterson AFB, OH 45433, USA.
| | - Claude C Grigsby
- Air Force Research Laboratory, 711th Human Performance Wing/RHXBC, Wright-Patterson AFB, OH 45433, USA.
| | - Darrin K Ott
- Air Force Research Laboratory, 711th Human Performance Wing, U.S. Air Force School of Aerospace Medicine Wright-Patterson AFB, OH 45433, USA.
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Zaitsev VN, Zui MF. Preconcentration by solid-phase microextraction. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s1061934814080139] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Amann A, Costello BDL, Miekisch W, Schubert J, Buszewski B, Pleil J, Ratcliffe N, Risby T. The human volatilome: volatile organic compounds (VOCs) in exhaled breath, skin emanations, urine, feces and saliva. J Breath Res 2014; 8:034001. [PMID: 24946087 DOI: 10.1088/1752-7155/8/3/034001] [Citation(s) in RCA: 361] [Impact Index Per Article: 36.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Breath analysis is a young field of research with its roots in antiquity. Antoine Lavoisier discovered carbon dioxide in exhaled breath during the period 1777-1783, Wilhelm (Vilém) Petters discovered acetone in breath in 1857 and Johannes Müller reported the first quantitative measurements of acetone in 1898. A recent review reported 1765 volatile compounds appearing in exhaled breath, skin emanations, urine, saliva, human breast milk, blood and feces. For a large number of compounds, real-time analysis of exhaled breath or skin emanations has been performed, e.g., during exertion of effort on a stationary bicycle or during sleep. Volatile compounds in exhaled breath, which record historical exposure, are called the 'exposome'. Changes in biogenic volatile organic compound concentrations can be used to mirror metabolic or (patho)physiological processes in the whole body or blood concentrations of drugs (e.g. propofol) in clinical settings-even during artificial ventilation or during surgery. Also compounds released by bacterial strains like Pseudomonas aeruginosa or Streptococcus pneumonia could be very interesting. Methyl methacrylate (CAS 80-62-6), for example, was observed in the headspace of Streptococcus pneumonia in concentrations up to 1420 ppb. Fecal volatiles have been implicated in differentiating certain infectious bowel diseases such as Clostridium difficile, Campylobacter, Salmonella and Cholera. They have also been used to differentiate other non-infectious conditions such as irritable bowel syndrome and inflammatory bowel disease. In addition, alterations in urine volatiles have been used to detect urinary tract infections, bladder, prostate and other cancers. Peroxidation of lipids and other biomolecules by reactive oxygen species produce volatile compounds like ethane and 1-pentane. Noninvasive detection and therapeutic monitoring of oxidative stress would be highly desirable in autoimmunological, neurological, inflammatory diseases and cancer, but also during surgery and in intensive care units. The investigation of cell cultures opens up new possibilities for elucidation of the biochemical background of volatile compounds. In future studies, combined investigations of a particular compound with regard to human matrices such as breath, urine, saliva and cell culture investigations will lead to novel scientific progress in the field.
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Affiliation(s)
- Anton Amann
- Univ-Clinic for Anesthesia and Intensive Care, Innsbruck Medical University, Anichstr, 35, A-6020 Innsbruck, Austria. Breath Research Institute of the University of Innsbruck, Rathausplatz 4, A-6850 Dornbirn, Austria
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Analysis of BTEX and chlorinated solvents in meconium by headspace-solid-phase microextraction gas chromatography coupled with mass spectrometry. Anal Bioanal Chem 2014; 406:4481-90. [PMID: 24838489 DOI: 10.1007/s00216-014-7836-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/07/2014] [Accepted: 04/14/2014] [Indexed: 10/25/2022]
Abstract
Meconium is the earliest stool of newborns, and is a complex matrix that reflects the degree of exposure of the fetus to xenobiotics. To investigate fetal exposure to volatile organic compounds, an analytical method was developed to identify and quantify BTEX (benzene, toluene, ethylbenzene, and o,m,p-xylene) and two chlorinated solvents (trichloroethylene and tetrachloroethylene) in meconium. Headspace-solid-phase microextraction coupled with gas chromatography-mass spectrometry was selected because it is simple, sensitive, can be automated, and requires no extensive sample preparation. Several extraction variables were optimized (fiber type, incubation time, temperature of fiber, and use of salt). Because meconium is a complex matrix, quantification by SPME was considered carefully because of potential interference, for example competitive adsorption. Calibration in water was compared with calibration in meconium using external and internal methods (with isotope-labeled compounds). In meconium, limits of quantification were determined to be in the range 0.064-0.096 ng g(-1) for the investigated compounds. All target compounds were determined in "real-case" meconium samples.
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Smith D, Španěl P, Herbig J, Beauchamp J. Mass spectrometry for real-time quantitative breath analysis. J Breath Res 2014; 8:027101. [PMID: 24682047 DOI: 10.1088/1752-7155/8/2/027101] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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47
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Soso SB, Koziel JA, Johnson A, Lee YJ, Fairbanks WS. Analytical methods for chemical and sensory characterization of scent-markings in large wild mammals: a review. SENSORS 2014; 14:4428-65. [PMID: 24603639 PMCID: PMC4003951 DOI: 10.3390/s140304428] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 01/15/2014] [Accepted: 02/25/2014] [Indexed: 01/17/2023]
Abstract
In conjoining the disciplines of "ethology" and "chemistry" the field of "Ethochemistry" has been instituted. Ethochemistry is an effective tool in conservation efforts of endangered species and the understanding of behavioral patterns across all species. Chemical constituents of scent-markings have an important, yet poorly understood function in territoriality, reproduction, dominance, and impact on evolutionary biology, especially in large mammals. Particular attention has recently been focused on scent-marking analysis of great cats (Kalahari leopards (Panthera pardus), puma (Puma concolor) snow leopard (Panthera uncia), African lions (Panthera leo), cheetahs (Acinonyx jubatus), and tigers (Panthera tigris)) for the purpose of conservation. Sensory analyses of scent-markings could address knowledge gaps in ethochemistry. The objective of this review is to summarize the current state-of-the art of both the chemical and sensory analyses of scent-markings in wild mammals. Specific focus is placed on sampling and sample preparation, chemical analysis, sensory analysis, and simultaneous chemical and sensory analyses. Constituents of exocrine and endocrine secretions have been most commonly studied with chromatography-based analytical separations. Odor analysis of scent-markings provides an insight into the animal's sensory perception. A limited number of articles have been published in the area of sensory characterization of scent marks. Simultaneous chemical and sensory analyses with chromatography-olfactometry hyphenation could potentially aid conservation efforts by linking perceived odor, compounds responsible for odor, and resulting behavior.
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Affiliation(s)
- Simone B Soso
- Environmental Science Interdepartmental Graduate Program, Iowa State University, Ames, IA 50011, USA.
| | - Jacek A Koziel
- Environmental Science Interdepartmental Graduate Program, Iowa State University, Ames, IA 50011, USA.
| | - Anna Johnson
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA.
| | - Young Jin Lee
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA.
| | - W Sue Fairbanks
- Department of Natural Resource Ecology and Management, Oklahoma State University, Stillwater, OK 74078, USA.
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48
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Chen F, Wang C, Zhang M, Zhang X, Liu Y, Ye J, Chu Q. Sensitive determination of endogenous hexanal and heptanal in urine by hollow-fiber liquid-phase microextraction prior to capillary electrophoresis with amperometric detection. Talanta 2014; 119:83-9. [DOI: 10.1016/j.talanta.2013.10.052] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/18/2013] [Accepted: 10/20/2013] [Indexed: 10/26/2022]
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49
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Alonso M, Castellanos M, Sanchez JM. Evaluation of matrix effects in the analysis of volatile organic compounds in whole blood with solid-phase microextraction. J Sep Sci 2013; 36:3776-82. [DOI: 10.1002/jssc.201300636] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 09/23/2013] [Accepted: 09/23/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Monica Alonso
- Department of Chemistry; University of Girona; Campus Montilivi s/n; Girona Spain
| | - Mar Castellanos
- Department of Neurology; Dr. Josep Trueta University Hospital; Girona Spain
- Cerebrovascular Unit, Girona Biomedical Research Institute (IdIBGi); Girona Spain
| | - Juan M. Sanchez
- Department of Chemistry; University of Girona; Campus Montilivi s/n; Girona Spain
- Cerebrovascular Unit, Girona Biomedical Research Institute (IdIBGi); Girona Spain
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50
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Comparison of SPME and static headspace analysis of blood alcohol concentration utilizing two novel chromatographic stationary phases. Forensic Sci Int 2013; 231:e50-6. [DOI: 10.1016/j.forsciint.2013.05.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 04/28/2013] [Accepted: 05/02/2013] [Indexed: 01/18/2023]
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