1
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Song N, Zhuang J, Zhang H, Qian M, Wu H, Sun N. Stereoselective bioaccumulation and degradation of chiral pesticide hexythiazox in earthworm-soil microcosm. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116148. [PMID: 38422791 DOI: 10.1016/j.ecoenv.2024.116148] [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: 12/31/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
The chiral pesticide hexythiazox was extensively employed in agricultural activities and has garnered growing concern for its harmful impact on the ecosystem. This study investigates the toxicodynamic earthworm at the enantiomeric level of hexythiazox. Earthworms exhibited notable enantioselectivity during the accumulation stage. Furthermore, the presence of earthworms can impact the rate of degradation and enantioselectivity of hexythiazox in soil. The accumulation of the two hexythiazox enantiomers in the earthworm adhered to the one-compartment model, whereas the elimination phase was governed by the first-order kinetics equation. Furthermore, it was discovered that there was no notable enantioselectivity observed during the elimination phase.
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Affiliation(s)
- Ningying Song
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Jiyang Zhuang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Hu Zhang
- Zhejiang Province Key Laboratory for Food Safety, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Mingrong Qian
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310032, China
| | - Huizhen Wu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China.
| | - Nabo Sun
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China.
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2
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Zhu H, Qin K, Zhang P, Wang H. Enantiomeric Separation and Degradation of Benoxacor Enantiomers in Horticultural Soil by Normal-Phase and Reversed-Phase High Performance Liquid Chromatography. Int J Mol Sci 2023; 24:ijms24108887. [PMID: 37240233 DOI: 10.3390/ijms24108887] [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: 04/21/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
The separation of benoxacor enantiomers on six commercial chiral columns was investigated by high-performance liquid chromatography (HPLC) under normal-phase and reversed-phase conditions. The mobile phases included hexane/ethanol, hexane/isopropanol, acetonitrile/water, and methanol/water. The effects of the chiral stationary phases (CSPs), temperature, and mobile phase composition and ratio on the separation of benoxacor enantiomers were examined. Under normal-phase conditions, the two benoxacor enantiomers were completely separated on Chiralpak AD, Chiralpak IC, Lux Cellulose-1, and Lux Cellulose-3 columns and partially separated on a Lux Cellulose-2 column. Under reversed-phase conditions, benoxacor enantiomers were completely separated on a Lux Cellulose-3 column and partially separated on Chiralpak IC and Lux Cellulose-1 columns. Normal-phase HPLC performed better than reversed-phase HPLC for the separation of benoxacor enantiomers. As the column temperature increased from 10 °C to 4 °C, the enthalpy (ΔH) and entropy (ΔS) results indicated that the resolution was strongly affected by the temperature and that the lowest temperature did not always produce the best resolution. An optimized separation method on the Lux Cellulose-3 column was used to investigate the stability of benoxacor enantiomers in solvents and the degradation of benoxacor enantiomers in three types of horticultural soil. Benoxacor enantiomers were stable, and degradation or racemization were not observed in methanol, ethanol, isopropanol, acetonitrile, hexane, or water (pH = 4.0, 7.0, and 9.0). In three horticultural soils, the degradation rate of S-benoxacor was faster than that of R-benoxacor, resulting in soil enrichment with R-benoxacor. The results of this study will help to improve the risk assessment of enantiomer levels of benoxacor in the environment.
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Affiliation(s)
- Haoxiang Zhu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
| | - Kunrong Qin
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
| | - Ping Zhang
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Haiyang Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
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3
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Meng Z, Cui J, Li R, Sun W, Bao X, Wang J, Zhou Z, Zhu W, Chen X. Systematic evaluation of chiral pesticides at the enantiomeric level: A new strategy for the development of highly effective and less harmful pesticides. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 846:157294. [PMID: 35839878 DOI: 10.1016/j.scitotenv.2022.157294] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Over the past few decades, pesticides have been used in large quantities, and they pose potential risks to organisms across various environments. Reducing the use of pesticides and their environmental risks has been an active research focus and difficult issue worldwide. As a class of pesticides with special structures, chiral pesticides generally exhibit enantioselectivity differences in biological activity, ecotoxicity, and environmental behavior. At present, replacing the racemates of chiral pesticides by identifying and developing their individual enantiomers with high efficiency and environmentally friendly characteristics is an effective strategy to reduce the use of pesticides and their environmental risks. In this study, we review the stereoselective behaviors of chiral pesticide, including their environmental behavior, stereoselective biological activity, and ecotoxicity. In addition, we emphasize that the systematic evaluation of chiral pesticides at the enantiomeric level is a promising novel strategy for developing highly effective and less harmful pesticides, which will provide important data support and an empirical basis for reducing pesticide application.
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Affiliation(s)
- Zhiyuan Meng
- School of Horticulture and Plant Protection, Yangzhou University, College of Guangling, Yangzhou, Jiangsu 225009, China
| | - Jiajia Cui
- School of Horticulture and Plant Protection, Yangzhou University, College of Guangling, Yangzhou, Jiangsu 225009, China
| | - Ruisheng Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China; Landscape Research Institute of Zhumadian, Zhumadian, Henan 463000, China
| | - Wei Sun
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xin Bao
- School of Horticulture and Plant Protection, Yangzhou University, College of Guangling, Yangzhou, Jiangsu 225009, China
| | - Jianjun Wang
- School of Horticulture and Plant Protection, Yangzhou University, College of Guangling, Yangzhou, Jiangsu 225009, China
| | - Zhiqiang Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Wentao Zhu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xiaojun Chen
- School of Horticulture and Plant Protection, Yangzhou University, College of Guangling, Yangzhou, Jiangsu 225009, China.
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4
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Jiang L, Geng Y, Wang L, Peng Y, Jing W, Xu Y, Liu X. Enantioseparation and dissipation of acephate and its highly toxic metabolite methamidophos in pakchoi by supercritical fluid chromatography tandem mass spectrometry. J Sep Sci 2022; 45:1806-1817. [PMID: 35261148 DOI: 10.1002/jssc.202200006] [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: 01/04/2022] [Revised: 02/17/2022] [Accepted: 03/03/2022] [Indexed: 11/06/2022]
Abstract
Acephate is widely used in crops as racemate. However, the enantioselective dissipation of acephate enantiomers has not been investigated in pakchoi. A sensitive and effective approach was established for determining residues of acephate and its highly toxic metabolite methamidophos enantiomers by supercritical fluid chromatography tandem mass spectrometry. Baseline separations for their enantiomers were achieved by using a Chiralcel OD-H column. The optimal chromatographic conditions were obtained as follows: CO2 /ethanol (95/5) as mobile phase; flow rate, 3.0 mL/min; column temperature, 40°C. The mean recoveries (RSDs) of analytes were in the range of 77%-83.1% (6.1%-9.9%), 75.4%-87.5% (9.3%-13.2%), and 81.5%-84.2% (7.1%-13.4%) at three fortification levels (0.005, 0.05, and 0.5 mg/kg for each enantiomer) for interday assay (n = 18). The method was used to evaluate the enantioselective dissipation of acephate and methamidophos in pakchoi. S-acephate dissipated faster than R-acephate, while the concentration of R-methamidophos was higher than that of S-methamidophos during the entire study period. The results indicated that the R-enantiomer of acephate and methamidophos was preferentially enriched in pakchoi. The established analysis approach and the study data provided useful information for the rational use of acephate in agriculture. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Linjie Jiang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China.,Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, China.,National Reference Laboratory for Agricultural Testing, China
| | - Yue Geng
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China.,Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, China.,National Reference Laboratory for Agricultural Testing, China
| | - Lu Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China.,Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, China.,National Reference Laboratory for Agricultural Testing, China
| | - Yi Peng
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China.,Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, China.,National Reference Laboratory for Agricultural Testing, China
| | - Wei Jing
- Shimadzu (China) Co., LTD. Beijing Branch, China
| | - Yaping Xu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China.,Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, China.,National Reference Laboratory for Agricultural Testing, China
| | - Xiaowei Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China.,Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, China.,National Reference Laboratory for Agricultural Testing, China
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5
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Shi L, Zhang P, He Y, Zeng F, Xu J, He L. Enantioselective effects of cyflumetofen on microbial community and related nitrogen cycle gene function in acid-soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:144831. [PMID: 33548698 DOI: 10.1016/j.scitotenv.2020.144831] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/26/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
Cyflumetofen (CYF) is a novel chiral acaricide widely used in commercial crops to control mites. The environmental risks exposed by CYF in the soil, especially at the enantiomer level, remain unclear. We found that the (+)-CYF enantiomer was preferentially degraded in acid-soil, resulting in (-)-CYF enrichment. 16S rRNA and qPCR analysis indicated that decreased bacterial abundance by 12.79-61.80% and 2.52-52.48% in (-)-CYF treatment and (+)-CYF treatment, respectively. Diversity was also decreased with (-)-CYF treatment. Interestingly, several beneficial bacteria, for instance, Alphaproteobacteria (class), Sphingomonadaceae (family), and Arthrobacter (specise) were more enriched following (-)-CYF. The abundance of N2-fixing bacteria showed a sustained reduction with time, and the decrease was 3.24-72.94% with (-)-CYF and 25.37-73.11% with (+)-CYF treatment. Compared with the (+)-CYF treatment could positively promote nitrification, while the treatment (-)-CYF significantly reduced the abundance of amoA gene; namely it significantly negatively affected the nitrification in the nitrogen cycle. Through our further research, we found that Actinobacteria, Alphaproteobacteria, Lysobacter; Sphingomonas, Patescibacteria, Saccharimonadia, and Saccharimonadales showed synergistic effects with the nitrogen cycling-related genes nifH and amoA. These results contribute to a comprehensive environmental risk assessment of CYF in acid-soil at the enantiomer level.
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Affiliation(s)
- Linlin Shi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; Academy of Agricultural Sciences, Southwest University, Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China; Academy of Agricultural Sciences, Southwest University, Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Yuhan He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China; Academy of Agricultural Sciences, Southwest University, Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Fanzhan Zeng
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China; Academy of Agricultural Sciences, Southwest University, Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China; Academy of Agricultural Sciences, Southwest University, Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China.
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6
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Application of Chiral and Achiral Supercritical Fluid Chromatography in Pesticide Analysis: A Review. J Chromatogr A 2020; 1634:461684. [DOI: 10.1016/j.chroma.2020.461684] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/28/2020] [Accepted: 11/01/2020] [Indexed: 12/13/2022]
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7
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Residues and enantioselective behavior of cyflumetofen from apple production. Food Chem 2020; 321:126687. [DOI: 10.1016/j.foodchem.2020.126687] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 03/13/2020] [Accepted: 03/22/2020] [Indexed: 11/17/2022]
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8
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Zhang P, He Y, Wang S, Shi D, Xu Y, Yang F, Wang J, He L. Chiral Separation and Determination of Etoxazole Enantiomers in Vegetables by Normal-Phase and Reverse-Phase High Performance Liquid Chromatography. Molecules 2020; 25:E3134. [PMID: 32659902 PMCID: PMC7397032 DOI: 10.3390/molecules25143134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 11/16/2022] Open
Abstract
The chiral separation of etoxazole enantiomers on Lux Cellulose-1, Lux Cellulose-3, Chiralpak IC, and Chiralpak AD chiral columns was carefully investigated by normal-phase high performance liquid chromatography and reverse-phase high performance liquid chromatography (HPLC). Hexane/isopropanol, hexane/n-butanol, methanol/water, and acetonitrile/water were used as mobile phase at a flow rate of 0.8 mL/min. The effects of chiral stationary phase, mobile phase component, mobile phase ratio, and temperature on etoxazole separation were also studied. Etoxazole enantiomers were baseline separated on Lux Cellulose-1, Chiralpak IC, and Chiralpak AD chiral columns, and partially separated on Lux Cellulose-3 chiral column under normal-phase HPLC. However, the complete separation on Lux Cellulose-1, Chiralpak IC, and partial separation on Chiralpak AD were obtained under reverse-phase HPLC. Normal-phase HPLC presented better resolution for etoxazole enantiomers than reverse-phase HPLC. Thermodynamic parameters, including ΔH and ΔS, were also calculated based on column temperature changes from 10 °C to 40 °C, and the maximum resolutions (Rs) were not always acquired at the lowest temperature. Furthermore, the optimized method was successfully applied to determine etoxazole enantiomers in cucumber, cabbage, tomato, and soil. The results of chiral separation efficiency of etoxazole enantiomers under normal-phase and reverse-phase HPLC were compared, and contribute to the comprehensive environmental risk assessment of etoxazole at the enantiomer level.
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Affiliation(s)
- Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing 400715, China
| | - Yuhan He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Sheng Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Dongmei Shi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Yangyang Xu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Furong Yang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Jianhao Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (Y.H.); (S.W.); (D.S.); (Y.X.); (F.Y.); (J.W.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing 400715, China
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9
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Zhang P, Wang S, Shi D, Xu Y, Yang F, Deng X, He Y, He L. Direct Enantiomeric Separation and Determination of Hexythiazox Enantiomers in Environment and Vegetable by Reverse-Phase High-Performance Liquid Chromatography. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E3453. [PMID: 32429166 PMCID: PMC7277754 DOI: 10.3390/ijerph17103453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 12/02/2022]
Abstract
In the present study, the direct enantiomeric separation of hexythiazox enantiomers on Lux cellulose-1, Lux cellulose-2, Lux cellulose-3, Lux cellulose-4, Lux amylose-1 and Chirapak IC chiral columns were carefully investigated by reverse-phase high-performance liquid chromatography (RP-HPLC). Acetonitrile/water and methanol/water were used as mobile phase at a flow rate of 0.8 mL·min-1. The effects of chiral stationary phase, temperature, thermodynamic parameters, mobile phase component and mobile phase ratio on hexythiazox enantiomers separation were fully evaluated. Hexythiazox enantiomers received a baseline separation on the Lux cellulose-3 column with a maximum resolution of Rs = 2.09 (methanol/water) and Rs = 2.74 (acetonitrile/water), respectively. Partial separations were achieved on other five chiral columns. Furthermore, Lux amylose-1 and Chirapak IC had no separation ability for hexythiazox enantiomers when methanol/water was used as mobile phase. Temperature study indicated that the capacity factor (k) and resolution factor (Rs) decreased with column temperature increasing from 10 °C to 40 °C. The enthalpy (ΔH) and entropy (ΔS) involved in hexythiazox separation were also calculated and demonstrated the lower temperature contributed to better separation resolution. Moreover, the residue analytical method for hexythiazox enantiomers in the environment (soil and water) and vegetable (cucumber, cabbage and tomato) were also established with reliable accuracy and precision under reverse-phase HPLC condition. Such results provided a baseline separation method for hexythiazox enantiomers under reverse-phase conditions and contributed to an environmental and health risk assessment of hexythiazox at enantiomer level.
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Affiliation(s)
- Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing 400715, China
| | - Sheng Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Dongmei Shi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Yangyang Xu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Furong Yang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Xile Deng
- Key Laboratory for Biology and Control of Weeds, Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China;
| | - Yuhan He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; (S.W.); (D.S.); (Y.X.); (F.Y.); (Y.H.)
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing 400715, China
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10
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Carrão DB, Perovani IS, de Albuquerque NCP, de Oliveira ARM. Enantioseparation of pesticides: A critical review. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115719] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Yang F, Tang G, Liu S, Fan Z, Wang Y, Deng H, Bian Z, Li Z. Ultra‐performance convergence chromatography with tandem mass spectrometry‐assisted method for rapid enantioseparation and determination of fluazifop‐butyl in tobacco and soil. Chirality 2019; 31:353-361. [DOI: 10.1002/chir.23062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/07/2019] [Accepted: 01/24/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Fei Yang
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Gangling Tang
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Shanshan Liu
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Ziyan Fan
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Ying Wang
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Huimin Deng
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Zhaoyang Bian
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
| | - Zhonghao Li
- China National Tobacco Quality Supervision and Test Center Zhengzhou China
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12
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13
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Jeschke P. Current status of chirality in agrochemicals. PEST MANAGEMENT SCIENCE 2018; 74:2389-2404. [PMID: 29704299 DOI: 10.1002/ps.5052] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/12/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
The agrochemical industry is searching continuously for new pesticides to develop products that have optimal efficacy, lower application rates in the field, increased selectivity, favourable toxicological and environmental safety, enhanced user friendliness and better economic viability. One strategy by which to achieve these ambitious goals makes use of the unique properties of molecules containing asymmetric centres. In the past, many natural products and their congeners have been a source of inspiration in the design of new active ingredients, and the molecular structures of the resulting compounds have become increasingly complex; some 30% contain fragments with asymmetric centres. However, despite enormous progress in catalytic asymmetric processes over the past decade, few agrochemicals are produced in an enantiomerically pure or enriched form on an industrial scale. Since 2007, ∼ 43% of the 44 products launched (insecticides, acaricides, fungicides, nematicides and herbicides) contain one or more asymmetric centres in the molecule (∼ 47%) and most have been launched as racemic mixtures of enantiomers or diastereomers. This review provides an overview of the current status of chiral agrochemicals launched over the past 10 years and describes the inherently connected challenges of modern agricultural chemistry by managing important aspects resulting from the stereochemistry of these innovative products. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Peter Jeschke
- Bayer AG, Crop Science Division, Small Molecules Research, Pest Control Chemistry, Monheim am Rhein, Germany
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14
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Yang F, Tang G, Li Z, Fan Z, Wang Y, Liu S, Bian Z, Deng H. An environmentally friendly method for the enantioseparation and determination of benalaxyl in tobacco and soil by ultra-performance convergence chromatography with tandem mass spectrometry. J Sep Sci 2018; 41:4233-4240. [PMID: 30216709 DOI: 10.1002/jssc.201800861] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 01/20/2023]
Abstract
For the purpose of chiral separation and determination of benalaxyl enantiomers in tobacco and soil, we developed a rapid, green, and sensitive method using ultra-performance convergence chromatography with tandem mass spectrometry. The samples were extracted and purified by the quick, easy, cheap, effective, rugged, and safe method before injection. The baseline separation was obtained on a chiral column in 5 min with carbon dioxide and ethanol as mobile phase. Separation parameters were optimized for the best separation efficiency. Under optimal conditions, the recoveries of both enantiomers were 77.1-98.4% with relative standard deviations <5.0% at spiked level of 0.1, 2.0, and 5.0 mg/kg in two matrices. Good coefficients of determination were achieved over the concentration range of 10-250 ng/mL. The limit of detection and the limit of quantification for all enantiomers ranged from 0.43 to 0.72 μg/kg and from 1.25 to 2.15 μg/kg, respectively. The results show that ultra-performance convergence chromatography with tandem mass spectrometry provides a reliable, green, and rapid method for the separation and determination of benalaxyl enantiomers in tobacco and soil. This method has important theoretical significance for studying the enantioselectivity and bioactivity of benalaxyl in the environment and in organisms.
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Affiliation(s)
- Fei Yang
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Gangling Tang
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Zhonghao Li
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Ziyan Fan
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Ying Wang
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Shanshan Liu
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Zhaoyang Bian
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
| | - Huimin Deng
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, P. R. China
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15
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Rapid analysis of tristyrylphenol ethoxylates in cucumber-field system using supercritical fluid chromatography–tandem mass spectrometry. Food Chem 2018; 266:119-125. [DOI: 10.1016/j.foodchem.2018.05.122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/10/2018] [Accepted: 05/27/2018] [Indexed: 11/20/2022]
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16
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The dissipation of thiamethoxam and its main metabolite clothianidin during strawberry growth and jam-making process. Sci Rep 2018; 8:15242. [PMID: 30323350 PMCID: PMC6189094 DOI: 10.1038/s41598-018-33334-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 09/20/2018] [Indexed: 11/08/2022] Open
Abstract
Few studies focused on the residue of thiamethoxam and its metabolite clothianidin on strawberry where it is widely used, despite this is essential to assess the potential food risk of thiamethoxam and its main metabolite clothianidin. In this study, the dissipation of thiamethoxam and its metabolite clothianidin during strawberry growth and jam-making process were assessed. The strawberry was sprayed with thiamethoxam based on the field application to investigate the dissipation of thiamethoxam as well as clothianidin formation. The half-life of thiamethoxam in strawberry was 9.0 days and the concentration of clothianidin in strawberry gradually increased from 0.55 to 11 μg/kg within 30 days. In addition, the amount of thiamethoxam decreased by 51.7% and clothianidin decreased by 40.2% during the homogenization process. The processing factor values of whole processing all less than 1 except simmering. This results from this study will not only help to understand the dissipation kinetics of thiamethoxam and clothianidin in the strawberry, but also facilitate to make more accurate risk assessments of them during strawberry jam making process.
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17
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Current trends in supercritical fluid chromatography. Anal Bioanal Chem 2018; 410:6441-6457. [DOI: 10.1007/s00216-018-1267-4] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/18/2018] [Accepted: 07/12/2018] [Indexed: 12/16/2022]
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18
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Fan YL, Ma M, Cui HZ, Liu S, Yang ML, Hou XF. Simultaneous determination of 22 phthalate esters in polystyrene food-contact materials by ultra-performance convergence chromatography with tandem mass spectrometry. J Sep Sci 2018; 41:2993-3002. [PMID: 29809316 DOI: 10.1002/jssc.201800094] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/25/2018] [Accepted: 05/16/2018] [Indexed: 01/24/2023]
Abstract
A method for the determination of 22 phthalate esters in polystyrene food-contact materials has been established using ultraperformance convergence chromatography with tandem mass spectrometry. In this method, 22 phthalate esters were analyzed in <3.5 min on an ACQUITY Tours 1-AA column by gradient elution. The mobile phase, the compensation solvent, the flow rate of mobile phase, column temperature, and automatic back pressure regulator pressure were optimized, respectively. There was a good linearity of 20 phthalate esters with a range of 0.05-10 mg/L, diisodecyl phthalate and diisononyl phthalate were 0.25-10 mg/L, and the correlation coefficients of all phthalates were higher than 0.99 and those of 16 phthalates were higher than 0.999. The limits of detection and the limits of quantification of 15 phthalates were 0.02 and 0.05 mg/kg, meanwhile diallyl phthalate, diisobutyl phthalate, dimethyl phthalate, di-n-butyl phthalate, and di(2-ethylhexyl) phthalate were 0.05 and 0.10 mg/kg, and diisodecyl phthalate and diisononyl phthalate were 0.10 and 0.25 mg/kg. The spiked recoveries were in the range of 76.26-107.76%, and the relative standard deviations were in the range of 1.78-12.10%. Results support this method as an efficient alternative to apply for the simultaneous determination of 22 phthalate esters in common polystyrene food-contact materials.
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Affiliation(s)
- Ying-Li Fan
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - Ming Ma
- Technical Center for Industrial Product and Raw Material Inspection and Testing, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai, China
| | - He-Zhen Cui
- Department of Chemistry, Fudan University, Shanghai, China
| | - Shu Liu
- Technical Center for Industrial Product and Raw Material Inspection and Testing, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai, China
| | - Min-Li Yang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - Xiu-Feng Hou
- Department of Chemistry, Fudan University, Shanghai, China
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19
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Guo J, Li M, Liu Y, Wang F, Kong Z, Sun Y, Lu J, Jin N, Huang Y, Liu J, Francis F, Fan B. Residue and Dietary Risk Assessment of Chiral Cyflumetofen in Apple. Molecules 2018; 23:molecules23051060. [PMID: 29724046 PMCID: PMC6099807 DOI: 10.3390/molecules23051060] [Citation(s) in RCA: 12] [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: 04/03/2018] [Revised: 04/20/2018] [Accepted: 04/29/2018] [Indexed: 02/07/2023] Open
Abstract
Ultra-performance convergence chromatography is an environmentally-friendly analytical method that uses dramatically reduced amounts of organic solvents. In addition, a robust and highly sensitive chiral separation method was developed for the novel chiral acaricide cyflumetofen by using ultra-performance convergence chromatography coupled with tandem mass spectrometry, which shows that stereoisomer recoveries determined for various apple parts ranged from 78.3% to 119.9%, with the relative standard deviations being lower than 14.0%. The half-lives of (−)-cyflumetofen and (+)-cyflumetofen obtained under 5-fold applied dosage equal to 22.13 and 22.23 days, respectively. For 1.5-fold applied dosage, the respective values were determined as 22.42 and 23.64 days, i.e., the degradation of (−)-cyflumetofen was insignificantly favored over that of its enantiomer. Importantly, cyflumetofen was unevenly distributed in apples, with its relative contents in apple peel, peduncle, and pomace equal to 50%, 22%, and 16%, respectively. The proposed method can be used to efficiently separate and quantify chiral pesticide with advantages of a shorter analysis time, greater sensitivity, and better environmental compatibility. Additionally, the consumption of apples with residue of cyflumetofen did not pose a health risk to the population if the cyflumetofen applied under satisfactory agricultural practices after the long-term dietary risk assessment.
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Affiliation(s)
- Jing Guo
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Minmin Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
- Functional and Evolutionary Entomology, Gembloux Agro-Bio-Tech, University of Liège, Passage des Déportés 2, 5030 Gembloux, Belgium.
| | - Yongguo Liu
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University (BTBU), Beijing 100048, China.
| | - Fengzhong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Zhiqiang Kong
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Yufeng Sun
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Jia Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Nuo Jin
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Yatao Huang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Jiameng Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
| | - Frédéric Francis
- Functional and Evolutionary Entomology, Gembloux Agro-Bio-Tech, University of Liège, Passage des Déportés 2, 5030 Gembloux, Belgium.
| | - Bei Fan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process/Laboratory of Agro-products Quality Safety Risk Assessment, Ministry of Agriculture, Beijing 100193, China.
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20
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Zhang P, Yu Q, He X, Qian K, Xiao W, Xu Z, Li T, He L. Enantiomeric separation of type I and type II pyrethroid insecticides with different chiral stationary phases by reversed-phase high-performance liquid chromatography. Chirality 2017; 30:420-431. [PMID: 29274232 DOI: 10.1002/chir.22801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/24/2017] [Accepted: 11/22/2017] [Indexed: 01/07/2023]
Abstract
The enantiomeric separation of type I (bifenthrin, BF) and type II (lambda-cyhalothrin, LCT) pyrethroid insecticides on Lux Cellulose-1, Lux Cellulose-3, and Chiralpak IC chiral columns was investigated by reversed-phase high-performance liquid chromatography. Methanol/water or acetonitrile/water was used as mobile phase at a flow rate of 0.8 mL/min. The effects of chiral stationary phase, mobile phase composition, column temperature, and thermodynamic parameters on enantiomer separation were carefully studied. Bifenthrin got a partial separation on Lux Cellulose-1 column and baseline separation on Lux Cellulose-3 column, while LCT enantiomers could be completely separated on both Lux Cellulose-1 and Lux Cellulose-3 columns. Chiralpak IC provided no separation ability for both BF and LCT. Retention factor (k) and selectivity factor (α) decreased with the column temperature increasing from 10°C to 40°C for both BF and LCT enantiomers. Thermodynamic parameters including ∆H and ∆S were also calculated, and the maximum Rs were not always obtained at lowest temperature. Furthermore, the quantitative analysis methods for BF and LCT enantiomers in soil and water were also established. Such results provide a new approach for pyrethroid separation under reversed-phase condition and contribute to environmental risk assessment of pyrethroids at enantiomer level.
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Affiliation(s)
- Ping Zhang
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Qian Yu
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xiulong He
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Kun Qian
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Wei Xiao
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Zhifeng Xu
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Tian Li
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Lin He
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
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21
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Deng H, Wang Y, Bian Z, Liu S, Fan Z, Li Z, Yang F, Tang G. Enantioseparation of nornicotine in tobacco by ultraperformance convergence chromatography with tandem mass spectrometry. J Sep Sci 2017; 40:4645-4652. [PMID: 28960905 DOI: 10.1002/jssc.201700759] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/17/2017] [Accepted: 09/17/2017] [Indexed: 11/08/2022]
Abstract
Nornicotine, an alkaloid constituent of tobacco, is a precursor to the carcinogen N-nitrosonornicotine that is produced during the curing and processing of tobacco. Accumulating evidence reveals that nornicotine enantiomers have different neurochemical and behavioral effects. In the present study, an accurate and rapid method was developed for the enantioseparation of (R)-(+)-nornicotine and (S)-(-)-nornicotine enantiomers in tobacco by ultra-performance convergence chromatography with tandem mass spectrometry. Chromatographic conditions were investigated to achieve the optimal resolution of two enantiomers. Results indicated that (R)-(+)-nornicotine and (S)-(-)-nornicotine could be separated within 5 min when ammonium hydroxide was added into the cosolvent, and the best resolution (Rs = 4.76) was achieved on a immobilized cellulose tris-(3,5-dichlorophenylcarbamate) chiral stationary phase. The proposed method was validated and was finally applied to analyze the compositions of (R)-(+)-nornicotine and (S)-(-)-nornicotine in three typical types of tobaccos (flue-cured, burley, and oriental). It was found that, enantiomer fraction of nornicotine (the proportion of (S)-(-)-nornicotine in the nornicotine pool) in burley tobacco samples was relatively high and constant compared with flue-cured and oriental tobaccos. The effective and rapid enantioseparation of nornicotine may help the understanding of alkaloid metabolites in different tobacco varieties and may also benefit pharmacological studies of alkaloid enantiomers.
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Affiliation(s)
- Huimin Deng
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Ying Wang
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Zhaoyang Bian
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Shanshan Liu
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Ziyan Fan
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Zhonghao Li
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Fei Yang
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
| | - Gangling Tang
- China National Tobacco Quality Supervision and Test Center, High and New Technology Industries Development Zone, Zhengzhou, China
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22
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Wu W, Zhang Y, Wu H, Zhou W, Cheng Y, Li H, Zhang C, Li L, Huang Y, Zhang F. Simple, rapid, and environmentally friendly method for the separation of isoflavones using ultra-high performance supercritical fluid chromatography. J Sep Sci 2017; 40:2827-2837. [DOI: 10.1002/jssc.201601454] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Wenjie Wu
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
- School of Pharmacy; Hunan University of Chinese Medicine; Changsha Hunan China
| | - Yuan Zhang
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
- Department of Pharmacy, National Cancer Center/Cancer Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing China
| | - Hanqiu Wu
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
| | - Weie Zhou
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
| | - Yan Cheng
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
| | - Hongna Li
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
| | - Chuanbin Zhang
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
| | - Lulu Li
- School of Pharmacy; Hunan University of Chinese Medicine; Changsha Hunan China
| | - Ying Huang
- School of Pharmacy; Hunan University of Chinese Medicine; Changsha Hunan China
| | - Feng Zhang
- Institute of Food Safety; Chinese Academy of Inspection and Quarantine; Beijing China
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