1
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Identification of Oxidative Degradation Products of Dapsone in Presence of Adapalene by RP-HPLC–MS. Chromatographia 2023. [DOI: 10.1007/s10337-023-04234-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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2
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Ma S, Gao M, Ma S, Wang J, Sun Y, Wang H, Wang H, Wang X. Trace-level detection of sulfonamide antibiotics using quaternary ammonium polymeric ionic liquid-based effervescence-enhanced dispersive solid-phase extraction followed by LC-DAD analysis in environmental waters. RSC Adv 2022; 12:29915-29927. [PMID: 36321111 PMCID: PMC9580476 DOI: 10.1039/d2ra02488h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022] Open
Abstract
Conventional ionic liquids possess several disadvantages, such as high viscosity, difficult sampling/retrieval, and great loss in aqueous solution, limiting their wide applications in the pretreatment field. To solve these drawbacks, we synthesized a quaternary ammonium polymeric ionic liquid (PIL) and pressed it into an effervescent tablet for developing an effervescence-enhanced dispersive solid-phase extraction method (QAP-EDSE). The pressed effervescent tablet was composed of PIL as an extractant, tartaric acid as an acidic source, NaHCO3 as an alkaline source, and water-soluble starch as a filler, respectively. Under the CO2-driven dispersion, the QAP-EDSE method integrated rapid enrichment, extraction, and dispersion into one synchronous step. Employing the one-factor-at-a-time approach, several important variables were optimized as follows: 200 mg of P[VBTHEA]Cl as sorbent, 400 μL of acetone as elution solvent, 5 min of elution, solution pH 9.0, and 1 : 1.25 molar ratio of alkaline to acidic sources. Combining LC-DAD analysis, this proposed approach offered the limits of detection as low as 0.11–0.31 μg L−1 and satisfactory recoveries of 81.40–102.62% for five sulfonamides (SAs) in environmental waters. The lower relative standard deviations (1.9–6.7%) evidenced the higher intraday and interday experimental precision by this method. Overall, the newly developed method is environmentally benign, time-saving, and easy to operate with low detection limit and high recovery and thus shows excellent prospects in the trace-level detection of SAs in environmental waters. An effervescent tablet-assisted dispersive solid-phase extraction based on the utilization of quaternary ammonium poly ionic liquids (PIL) was proposed for the concentration/extraction of sulfonamides (SAs) in river and lake water samples.![]()
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Affiliation(s)
- Sai Ma
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
| | - Ming Gao
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
| | - Su Ma
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China,School of Chemistry and Life Sciences, Suzhou University of Science and TechnologySuzhou 215009China
| | - Jun Wang
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
| | - Yue Sun
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
| | - Hanyu Wang
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
| | - Huili Wang
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and TechnologySuzhou 215009China
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Wang L, Niu J, Wei P, Feng Y, Ding M, He C, Ma Y, Zhu Y, Li J, Huang L, Zhang X. Rapid determination of 2,4-diaminopyrimidine residues through sample pretreatment using immunomagnetic bead purification along with HPLC-UV. Food Chem 2022; 376:131835. [PMID: 34980530 DOI: 10.1016/j.foodchem.2021.131835] [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: 07/15/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022]
Abstract
To reduce matrix interference and realize simultaneous detection of multiple homologous compounds (trimethoprim (TMP), diaveridine (DVD), ormetoprim (OMP), baquiloprim (BQP), and aditoprim (ADP) in pig, cattle, chicken, and fish muscles), an immunomagnetic bead (IMB)-based sample purification pretreatment with HPLC-UV was developed. A broad-spectrum monoclonal antibody (mAb, named 14C6) was prepared and conjugated with carboxylic-acid-functionalized magnetic nanoparticles using the active ester method to obtain IMBs for sample purification. The extraction solvent was optimized based on the extraction efficiency. Good linearity was observed for all the five analytes (10-200 μg/kg) with the LOD and LOQ of 5 and 10 μg/kg, respectively. The mean recoveries ranged from 62.5% to 76.9%, while the coefficient of variation was <12.2%. The IMB method afforded greater sample purification and enrichment than those achieved with the SPE column-based conventional method. Hence, the IMB-based sample purification is a useful tool to determine 2,4-diaminopyrimidine residues in edible animal tissues.
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Affiliation(s)
- Liye Wang
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Jiangxiu Niu
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Pengyuan Wei
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Yilei Feng
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Mingyue Ding
- Henan Province Engineering Research Center for Food Safety Control of Processing and Circulation, College of Food Science and Technology, Henan Agricultural University, Zhengzhou, Henan 450002, PR China
| | - Chaojun He
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Yongjie Ma
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Yaolei Zhu
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Jia Li
- College of Food and Drug, Luoyang Normal University, Luoyang, Henan 471934, PR China
| | - Lingli Huang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, PR China.
| | - Xiya Zhang
- Henan Province Engineering Research Center for Food Safety Control of Processing and Circulation, College of Food Science and Technology, Henan Agricultural University, Zhengzhou, Henan 450002, PR China.
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4
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Zhou Q, Huang Q, Tu XX, Wang H, Yao C, Guo N, Niu D, Xiang YL, Zhu LH. Fast Online Solid Phase Extraction of Antibiotics by Click Chemistry Strategy Using Phenyl-Modified Periodic Mesoporous Organosilicas for Enrichment. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02305-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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5
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Zhang Q, Ma C, Duan Y, Wu X, Lv D, Luo J. Determination and dietary intake risk assessment of 35 pesticide residues in cowpea (Vigna unguiculata [L.] Walp) from Hainan province, China. Sci Rep 2022; 12:5523. [PMID: 35365691 PMCID: PMC8975881 DOI: 10.1038/s41598-022-09461-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/23/2022] [Indexed: 11/09/2022] Open
Abstract
The presence of pesticide residues in cowpea raises serious health concerns. In this study, a novel, sensitive, high-performance method was developed to simultaneously analyze the residues of 35 pesticides in cowpea samples from growing areas in the Hainan province of China, from November 2018 to June 2021. The method employs modified QuEChERS sample pretreatment coupled with gas chromatography-tandem mass spectrometry. The limits of quantification of the 35 pesticides in the cowpea matrix ranged from 1.0 to 8.0 μg/kg. Twenty-seven of the 35 pesticides were detected, twelve of which are banned for use on legumes in China. Residues for ten pesticides in 17.1% of the samples exceeded their MRLs, with the highest exceedance of 380% observed in difenoconazole. Moreover, 80.8% of the samples contained one or more pesticide residues, with the most frequently detected pesticide being chlorfenapyr with a detection rate of 46.3%. In addition, the pesticide triazophos was detected through different years and regions. Notably, the chronic dietary exposure risk (%ADI) of the detected pesticides, evaluated from the national estimated acceptable daily intake, was lower than 100% in Chinese people of different age groups.
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Affiliation(s)
- Qun Zhang
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, Hainan, China. .,Laboratory of Quality and Safety Risk Assessment for Tropical Products of Ministry of Agriculture and Rural Affairs, Haikou, 571101, Hainan, China.
| | - Chen Ma
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, Hainan, China.,Laboratory of Quality and Safety Risk Assessment for Tropical Products of Ministry of Agriculture and Rural Affairs, Haikou, 571101, Hainan, China
| | - Yun Duan
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, Hainan, China.,Laboratory of Quality and Safety Risk Assessment for Tropical Products of Ministry of Agriculture and Rural Affairs, Haikou, 571101, Hainan, China
| | - Xiaopeng Wu
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, Hainan, China.,Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruit and Vegetable Products, Haikou, 571101, Hainan, China
| | - Daizhu Lv
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, Hainan, China.,Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruit and Vegetable Products, Haikou, 571101, Hainan, China
| | - Jinhui Luo
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, Hainan, China.,Laboratory of Quality and Safety Risk Assessment for Tropical Products of Ministry of Agriculture and Rural Affairs, Haikou, 571101, Hainan, China
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Shen K, Zou X, Wang J. Simultaneous determination of the four key fluoroquinolones and two antipsychotics in fish and shrimp by LC-MS/MS. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:678-686. [PMID: 35302928 DOI: 10.1080/19440049.2022.2032381] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this study, we developed and validated a liquid chromatography triple quadrupole tandem mass spectrometry (LC-MS/MS) method used to simultaneously determine levels of four fluoroquinolones (ofloxacin, norfloxacin, lomefloxacin, and pefloxacin) and two antipsychotics (diazepam and methaqualone) in fish and shrimp. The samples were extracted with a mixture of anhydrous sodium sulfate and acetonitrile, and purified by C18 cartridge solid-phase extraction with an optimized eluent. The MS2 method was applied to recognize the molecular structure of these compounds according to a main fragmentation scheme. The key ions of identification and quantification were deduced from chemical structures. Multiple reaction monitoring was used to quantitatively analyse the compounds of interest. Satisfactory linearities were obtained (R2 ≥0.99) with the limits of quantitation (LOQs) ranging between 0.03 and 1.96 μg kg-1. The recoveries were 74-122%, with a relative standard deviation (RSD) below 4.9% for these compounds at the spiking level of three, five, and ten times the LODs, respectively. The LC-MS/MS method allows precise and sensitive determination of residues of six important banned veterinary drugs in fish and shrimp tissue. This methodological approach solved the problem imposed by the need for two or more analysis methods to analyse the compounds of interest described in this study.
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Affiliation(s)
- Keyi Shen
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xiaoshuang Zou
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Jun Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
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7
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Assessment of a specific sample cleanup for the multiresidue determination of veterinary drugs and pesticides in salmon using liquid chromatography/tandem mass spectrometry. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108311] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Szalwinski LJ, Hu Y, Morato NM, Cooks RG, Salentijn GI. Novel Ion Trap Scan Modes to Develop Criteria for On-Site Detection of Sulfonamide Antibiotics. Anal Chem 2021; 93:13904-13911. [PMID: 34617742 PMCID: PMC8529578 DOI: 10.1021/acs.analchem.1c02790] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Advances in ambient
ionization techniques have facilitated the
direct analysis of complex mixtures without sample preparation. Significant
attention has been given to innovating ionization methods so that
multiple options are now available, allowing for ready selection of
the best methods for particular analyte classes. These ambient techniques
are commonly implemented on benchtop systems, but their potential
application with miniature mass spectrometers for in situ measurements is even more powerful. These applications require that
attention be paid to tailoring the mass spectrometric methodology
for the on-site operation. In this study, combinations of scan modes
are employed to efficiently determine what tandem mass spectrometry
(MS/MS) operations are most useful for detecting sulfonamides using
a miniature ion trap after ionization. First, mixtures of representative
sulfonamide antibiotics were interrogated using a 2D MS/MS scan on
a benchtop ion trap in order to determine which class-specific fragments
(ionic or neutral) are shared between the sulfonamides and thus have
diagnostic value. Then, three less-used combination scans were recorded:
(i) a simultaneous precursor ion scan was used to detect both analytes
and an internal standard in a single ion injection event to optimize
quantitative performance; (ii) a simultaneous precursor/neutral loss
scan was used to improve detection limits; and finally, (iii) the
simultaneous precursor/neutral loss scan was implemented in a miniature
mass spectrometer and representative sulfonamides were detected at
concentrations as low as 100 ng/mL by nano-electrospray and 0.5 ng
absolute by paper spray ionization, although improvements in the stability
of the home-built instrumentation are needed to further optimize performance.
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Affiliation(s)
- Lucas J Szalwinski
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Yanyang Hu
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Nicolás M Morato
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - R Graham Cooks
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Gert Ij Salentijn
- Laboratory of Organic Chemistry, Wageningen University, Wageningen 6708 WE, The Netherlands.,Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen 6700 AE, The Netherlands
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