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Wu H, Kalia V, Manz KE, Chillrud L, Dishon NH, Jackson GL, Dye CK, Orvieto R, Aizer A, Levine H, Kioumourtzoglou MA, Pennell KD, Baccarelli AA, Machtinger R. Exposome Profiling of Environmental Pollutants in Seminal Plasma and Novel Associations with Semen Parameters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 39053901 DOI: 10.1021/acs.est.3c10314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Indicators of male fertility are in decline globally, but the underlying causes, including the role of environmental exposures, are unclear. This study aimed to examine organic chemical pollutants in seminal plasma, including both known priority environmental chemicals and less studied chemicals, to identify uncharacterized male reproductive environmental toxicants. Semen samples were collected from 100 individuals and assessed for sperm concentration, percent motility, and total motile sperm. Targeted and nontargeted organic pollutant exposures were measured from seminal plasma using gas chromatography, which showed widespread detection of organic pollutants in seminal plasma across all exposure classes. We used principal component pursuit (PCP) on our targeted panel and derived one component (driven by etriadizole) associated with total motile sperm (p < 0.001) and concentration (p = 0.03). This was confirmed by the exposome-wide association models using individual chemicals, where etriadizole was negatively associated with total motile sperm (FDR q = 0.01) and concentration (q = 0.07). Using PCP on 814 nontargeted spectral peaks identified a component that was associated with total motile sperm (p = 0.001). Bayesian kernel machine regression identified one principal driver of this association, which was analytically confirmed to be N-nitrosodiethylamine. These findings are promising and consistent with experimental evidence showing that etridiazole and N-nitrosodiethylamine may be reproductive toxicants.
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Affiliation(s)
- Haotian Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Vrinda Kalia
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Katherine E Manz
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Lawrence Chillrud
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Nathalie Hoffmann Dishon
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
| | - Gabriela L Jackson
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Christian K Dye
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Raoul Orvieto
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
| | - Adva Aizer
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
| | - Hagai Levine
- Braun School of Public Health, Hadassah Medical Organization, Faculty of Medicine, Hebrew University, Jerusalem 9112102, Israel
| | - Marianthi-Anna Kioumourtzoglou
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Kurt D Pennell
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
| | - Ronit Machtinger
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan 5262000, Israel
- School of Medicine, Tel-Aviv University, Tel Aviv 6997801, Israel
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Lin S, Wang H, Cai L, Liao L, Su Y, Cai X, Shen M. Characteristics and health risk assessment of volatile N-nitrosamines in the plasma of adults in Guangdong Province, China. J Pharm Biomed Anal 2023; 227:115189. [PMID: 36854220 DOI: 10.1016/j.jpba.2022.115189] [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: 09/06/2022] [Revised: 11/04/2022] [Accepted: 11/26/2022] [Indexed: 11/29/2022]
Abstract
N-nitrosamines are strong carcinogens that are widely present in the environment. This study developed a method, and analyzed the concentrations of volatile N-nitrosamines (VNAs) in the plasma of adults in Guangdong Province, China. Finally, the health risks to adults in Guangdong Province, China, with dietary exposure to VNAs were assessed. Gas chromatography/mass spectrometry (GC/MS) in electron impact (EI) ionization source mode was used to quantitatively analyze VNAs, and to perform accurate mass determination. The lower limit of detection (LOD) of nine nitrosamines are ranged from 0.01 to 2.14 ng/mL. The recovery rate ranged from 83 % to 116 %, and the relative standard deviation (RSD) was < 10 %. The method developed is simple, rapid, and provides good reproducibility and high sensitivity. N-nitrosodimethylamine (NDMA), N-nitrosomethylethylamine (NMEA), N-nitrosodinbutylamine (NDBA), N-nitrosopiperidine (NPIP), N-nitrosopyrrolidine (NPYR), N-nitrosomorpholine (NMOR) and N-nitrosodiphenylamine (NDPhA) were detected in 92 adult plasma samples. NDMA and NMEA were detected in 56.5 % and 44.6 % of the samples, followed by NPIP (34.8 %). NDMA had the highest median concentration (43.7 ng/mL) in the total samples. There were gender-related differences found in the concentrations of NDBA and NDPhA. The exposure risk assessment results showed that the two highest daily dietary intakes of VNAs were N-nitrosodi-n-propylamine (NDPA) and NDMA, and aquatic products and pickled vegetables contributed the most total nitrosamine intake. The lifetime cancer risk of adults ranged from 2.88 × 10-10 to 7.46 × 10-5, and the risk associated with NDMA, NDPA, N-nitrosodiethylamine (NDEA), NMEA and NPIP are important and should attract more attention. This study aimed to explore the exposure levels of VNAs in the plasma of adults in Guangdong Province, China, and to assess the health risks of dietary intake of VNAs, which provides a basis of the effect of VNAs exposure on human health.
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Affiliation(s)
- Simin Lin
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Hetao Wang
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Lishan Cai
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Lili Liao
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yintong Su
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Xiaohua Cai
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Mei Shen
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China.
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3
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Zhao C, Zhang H, Zhou J, Liu Q, Lu Q, Zhang Y, Yu X, Wang S, Liu R, Pu Y, Yin L. Metabolomic transition trajectory and potential mechanisms of N-nitrosomethylbenzylamine induced esophageal squamous cell carcinoma in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114071. [PMID: 36113270 DOI: 10.1016/j.ecoenv.2022.114071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 06/15/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) is an environment-relevant malignancy with a high mortality. Nitrosamines, a class of nitrogen-containing environmental carcinogens, are widely suggested as a risk factor for ESCC. However, how nitrosamines affect metabolic regulation to promote ESCC tumorigenesis is largely unknown. In this study, the transition trajectory of serum metabolism in the course of ESCC induced by N-nitrosomethylbenzylamine (NMBA) in rats was depicted by an untargeted metabolomic analysis, and the potential molecular mechanisms were revealed. The results showed that the metabolic alteration in rats was slight at the basal cell hyperplasia (BCH) stage, while it became apparent when the esophageal lesion developed into dysplasia (DYS) or more serious conditions. Moreover, serum metabolism of severe dysplasia (S-DYS) showed more similar characteristics to that of carcinoma in situ (CIS) and invasive cancer (IC). Aberrant nicotinate (NA) and nicotinamide (NAM) metabolism, tryptophan (TRP) metabolism, and sphingolipid metabolism could be the key players favoring the malignant transformation of esophageal epithelium induced by NMBA. More particularly, NA and NAM metabolism in the precancerous stages and TRP metabolism in the cancerous stages were demonstrated to replenish NAD+ in different patterns. Furthermore, both the IDO1-KYN-AHR axis mediated by TRP metabolism and the SPHK1-S1P-S1PR1 axis by sphingolipid metabolism provided an impetus to create the pro-inflammatory yet immune-suppressive microenvironment to facilitate the esophageal tumorigenesis and progression. Together, these suggested that NMBA exerted its carcinogenicity via more than one pathway, which may act together to produce combination effects. Targeting these pathways may open up the possibility to attenuate NMBA-induced esophageal carcinogenesis. However, the interconnection between different metabolic pathways needs to be specified further. And the integrative and multi-level systematic research will be conducive to fully understanding the mechanisms of NMBA-induced ESCC.
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Affiliation(s)
- Chao Zhao
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China; School of Nursing & School of Public Health, Yangzhou University, Yangzhou 225000, China
| | - Hu Zhang
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Jingjing Zhou
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Qiwei Liu
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Qiang Lu
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Ying Zhang
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Xiaojin Yu
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Shizhi Wang
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Ran Liu
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Yuepu Pu
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China
| | - Lihong Yin
- School of Public Health, Southeast University, Nanjing 210009 Jiangsu, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education of China, Southeast University, Nanjing 210009 Jiangsu, China.
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Li Y, Hecht SS. Carcinogenic components of tobacco and tobacco smoke: A 2022 update. Food Chem Toxicol 2022; 165:113179. [PMID: 35643228 PMCID: PMC9616535 DOI: 10.1016/j.fct.2022.113179] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/20/2022] [Accepted: 05/22/2022] [Indexed: 01/13/2023]
Abstract
Tobacco and tobacco smoke contain a complex mixture of over 9500 chemical compounds, many of which have been recognized as hazardous to human health by regulatory agencies. In 2012, the U.S. Food and Drug Administration established a list of harmful and potentially harmful constituents in unburned tobacco and tobacco smoke, 79 of which are considered as carcinogens. Over the past 10 years, with advancing analytical technology, significant amounts of new data have been published, increasing our understanding of levels of carcinogens in tobacco products. The International Agency for Research on Cancer (IARC) has released 35 monographs since 2012, with an increasing number of compounds in unburned tobacco and tobacco smoke classified as carcinogens. In this paper, we provide an updated list of IARC-classified carcinogens in unburned tobacco and tobacco mainstream smoke. A total of 83 carcinogens has been identified - 37 in unburned tobacco and 80 in tobacco smoke - with their occurrence levels reported since 2012. No clear decreasing trends were observed for any of these carcinogens in recent years. Surveillance of the levels of tobacco carcinogens as well as regulatory actions are needed to ensure control of their levels so that potential reduced risks of cancer and other diseases may be achieved.
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Affiliation(s)
- Yupeng Li
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA; Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Stephen S Hecht
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.
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Wang X, Qin Y, Nie C, Guo J, Pan L, Xie F, Wang S, Wang B, Zhao X, Wang B, Jia G. Smokeless tobacco analysis: Simultaneous extraction and purification of alkaloids, volatile N-nitrosamines, and polycyclic hydrocarbons for GC-MS/MS. J Sep Sci 2021; 44:2642-2654. [PMID: 33915029 DOI: 10.1002/jssc.202100186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/21/2021] [Accepted: 04/25/2021] [Indexed: 01/15/2023]
Abstract
Several smokeless tobacco products are available in the market and comprise complex chemical matrices. Sample preparation for analysis of the multiple classes of harmful compounds in smokeless tobacco products is highly cumbersome. In this study, a simultaneous extraction scheme was developed for three toxic analyte classes in smokeless tobacco products using a two-phase solution consisting of 5% aqueous NaOH and dichloromethane in a 1:4 ratio. The dichloromethane extract was used to analyze four alkaloids directly at levels greater than parts per million; however, passing the layer through a silica cartridge for further purification and concentration was necessary for determining 18 polycyclic aromatic hydrocarbons and four volatile N-nitrosoamines at the ppt level. The multitargets were determined by using gas chromatography with tandem mass spectrometry. The limits of detection for the 18 polycyclic aromatic hydrocarbons, four volatile N-nitrosoamines, three minor alkaloids, and nicotine were 0.2-1.2, 0.2-0.4, 0.6-1.0, and 10.2 μg/g, respectively. Four different smokeless tobacco substrates were fortified with three levels of mixed standards, and the recoveries ranged between 83 and 110%. The method was highly efficient, reduced the sample amounts, solvents, and the time required by approximately 60%. The method was used to assay 18 smokeless tobacco products, and showed potentials in assaying drugs and other plant-based substrates.
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Affiliation(s)
- Xiaoyu Wang
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Yaqiong Qin
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Cong Nie
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Junwei Guo
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Lining Pan
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Fuwei Xie
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Sheng Wang
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Bing Wang
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Xiaodong Zhao
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P. R. China
| | - Baolin Wang
- Technology Center, China Tobacco He'nan Industrial Co. Ltd., Research Institute of CNTC, Zhengzhou, P. R. China
| | - Guotao Jia
- Technology Center, China Tobacco He'nan Industrial Co. Ltd., Research Institute of CNTC, Zhengzhou, P. R. China
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Zhang Y, Zhao YG, Muhammad N, Ye ML, Zhu Y. Ultrasound-assisted synthesis of clover-shaped nano-titania functionalized covalent organic frameworks for the dispersive solid phase extraction of N-nitrosamines in drinking water. J Chromatogr A 2020; 1618:460891. [PMID: 31980265 DOI: 10.1016/j.chroma.2020.460891] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/14/2020] [Indexed: 10/25/2022]
Abstract
In this study, three batches of nano-titania functionalized covalent organic frameworks were acquired depending on different solvothermal reaction stages (24 h, 48 h and 72 h), which were named as single roll-up shaped nano-titania functionalized COFs (SSTF-COFs), double roll-up shaped nano-titania functionalized COFs (DSTF-COFs) and clover-shaped nano-titania functionalized covalent organic framework (CSTF-COFs), respectively. After comparing their extraction performances, the more efficient and stable CSTF-COFs were selected as sorbent for the dispersive solid phase extraction (dSPE) of eight target N-nitrosamines in drinking water, followed by the determination with liquid chromatography-tandem quadrupole mass spectrometry (LC-MS/MS). Owing to the introduction of hydroxy groups, CSTF-COFs showed high extraction efficiency for N-nitrosamines with a wide range of polarities through hydrogen bonding interaction, hydrophobic interaction and hydrophilic interaction. Under optimum conditions, the developed method provided relatively low limits of detection (0.13-2.45 ng/L) and satisfactory recoveries (88.6-105.5%), with relative standard deviations (RSDs) less than 8.3%. Therefore, with the assistance of CSTF-COFs, trace levels of N-nitrosamines were quantitatively and sensitively determined in 31 out of 460 bottled drinking water samples in a sensitive and convenient way.
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Affiliation(s)
- Yun Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yong-Gang Zhao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Nadeem Muhammad
- Department of Environmental Engineering, Wuchang University of Technology, Wuhan 430223, China
| | - Ming-Li Ye
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China.
| | - Yan Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
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NDMA impurity in valsartan and other pharmaceutical products: Analytical methods for the determination of N-nitrosamines. J Pharm Biomed Anal 2019; 164:536-549. [DOI: 10.1016/j.jpba.2018.11.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/27/2018] [Accepted: 11/04/2018] [Indexed: 12/18/2022]
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8
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Efficient sampling and determination of airborne N-nitrosamines by needle trap device coupled with gas chromatography–mass spectrometry. Microchem J 2018. [DOI: 10.1016/j.microc.2018.03.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Luo YB, Pang YQ, Jiang XY, Li XY, Zhang HF, Hu SD, Zhu FP, Feng YQ. Solid-phase extraction of tobacco-specific N-nitrosamines with a mixed-mode hydrophobic/cation-exchange sorbent. SEPARATION SCIENCE PLUS 2018. [DOI: 10.1002/sscp.201700049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yan-Bo Luo
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Yong-Qiang Pang
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Xing-Yi Jiang
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Xiang-Yu Li
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Hong-Fei Zhang
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Shao-Dong Hu
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Feng-Peng Zhu
- China National Tobacco Quality Supervision and Test Center; Zhengzhou China
| | - Yu-Qi Feng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry; Wuhan University; Wuhan China
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