Article
Chemistry, Analytical
Yue Zhang, Yang Li, Xiaoxia Liu, Ying Sun
Summary: This study established a method for detecting 21 target antibiotics in agricultural soil samples using ultra-high performance liquid chromatography with tandem mass spectrometry, with high extraction and detection efficiency. Validation of the method's selectivity, sensitivity, and reliability provided valuable information on analyzing the degree of antibiotic contamination in agricultural soils.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Analytical
Xiaochu Chen, Minxing Huang, Zhuoyan Xu, Yufeng Gao, Goubin Yu
Summary: A method for the determination of pesticide residues in canned fruits was developed using ethanol extraction, ammonium sulfate phase separation, and carboxylated multi-walled carbon nanotube clean-up sorbent. The method was validated with good recovery rates and low detection limits, showing potential for analysis of neonicotinoid pesticide residues with lower toxicity.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Food Science & Technology
Hyesu Lee, Myungheon Kim, Minsoo Park, Mihyun Cho, Jun Wook Hur, Yoonmi Lee, Mi-Ra Jo, Joon-Goo Lee, Moo-Hyeog Im
Summary: An analytical method using GC-MS/MS combined with quick, easy, cheap, effective, rugged, and safe extraction was developed to determine 57 pesticides in fishery products. The method showed low limits of detection and quantification, acceptable linearity of calibration curves, and good recoveries and reproducibility. The results of analyzing actual samples indicate that most samples were not contaminated by the target pesticides, except for a few samples with low levels of specific pesticides.
FOOD SCIENCE AND BIOTECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Saida Belarbi, Martin Vivier, Wafa Zaghouani, Aude De Sloovere, Valerie Agasse, Pascal Cardinael
Summary: A method using HPLC-MS/MS was developed for the quantification of 179 pesticides in rapeseeds, with the best results achieved using the EMR-Lipid sorbent, which provided satisfactory recoveries and low detection limits for most targeted pesticides.
Article
Chemistry, Analytical
Takaya Murakami, Reiko Ishimaru, Eriko Minami, Yoshiaki Iwamuro, Naoki Takamura, Aya Torai, Tsutomu Watanabe, Akihiro Miki, Munehiro Katagi, Maiko Kusano, Hitoshi Tsuchihashi, Kei Zaitsu, Satoshi Chinaka
Summary: Quick, easy, cheap, effective, rugged, and safe extraction methods have been developed for the determination of drugs in biological specimens. In this study, we developed two fully automated extraction methods based on acetonitrile salting-out assisted liquid-liquid extraction. Both methods showed high linearity, sensitivity, and satisfactory precision, accuracy, and matrix effects. Method 1 provided higher recovery rates, while method 2 offered higher detection sensitivities due to its solid-phase extraction cleanup step.
JOURNAL OF SEPARATION SCIENCE
(2023)
Review
Chemistry, Analytical
Klaudia Pszczolinska, Barbara Kociolek
Summary: QuEChERS method is a popular technique in multiresidue analysis for pesticide analysis of food and vegetable samples. Despite its advantages, it has limitations for complex matrices, which researchers overcome by modifying cleanup steps and optimizing parameters for better performance.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Analytical
Hassan Sereshti, Saba Semnani Jazani, Nina Nouri, Mohammad Hossein Shojaee AliAbadi
Summary: A new green miniaturized approach was developed for the extraction and analysis of multiclass pesticides in milk. The method reduced consumption of reagents and samples, and utilized a natural deep eutectic solvent and menthol for extraction and preconcentration. The results showed high accuracy and applicability of the method.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Analytical
Meizhu Gao, Chuanfei Bian, Wenwen Zhou, Lang Liu, Baotong Li, Limei Tang
Summary: The dissipation experiment of Tiafenacil in citrus orchards showed that the herbicide readily dissipates in soil with a short half-life. The dissipation rate was positively correlated with soil organic matter content and negatively correlated with soil pH, while the influence of temperature and rainfall was minimal.
JOURNAL OF SEPARATION SCIENCE
(2021)
Article
Biochemical Research Methods
Baocheng Ji, Wenhao Zhao, Xu Xu, Yu Han, Mingsha Jie, Gaigai Xu, Yanhong Bai
Summary: This study developed a modified QuEChERS method based on melamine sponge for rapid determination of multi-class veterinary drugs in milks. The method showed good potential in rapid determination of multiclass residues in food safety, with fast and convenient matrix purification, good linearity and recoveries, as well as relatively low LODs and LOQs.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Chemistry, Multidisciplinary
Mir Mahdi Abolghasemi, Hoda Taheri, Ahmad Aghaee
Summary: In this study, a combined QuEChERS extraction technique and D-SPE clean-up approach was proposed for the determination of Scopolamine in Datura innoxia samples. The method provided a LOD of 0.03 ng mL(-1) and a reproducibility below 1.07% RSD, and was successfully applied for the analysis of scopolamine in four D. innoxia samples.
SEPARATION SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Xuelei Chen, Wei Li, Jingguang Li, Sai Fan, Zhixiong Shi
Summary: An analytical methodology for determining organophosphorus flame retardants in milk was developed using high-performance liquid chromatography-tandem mass spectrometry. The method was validated for linearity, limits of detection, recovery, and precision, showing efficient results. The study successfully detected organophosphorus flame retardants in both human milk and commercial cow milk samples.
JOURNAL OF SEPARATION SCIENCE
(2021)
Article
Biochemical Research Methods
Oscar Castro, Silvia Borrull, Eva Pocurull, Francesc Borrull
Summary: The widespread use of benzothiazoles, benzotriazoles, and benzenesulfonamides in various environmental matrices has led to their presence in edible fish, posing an additional exposure route for the population. This study developed a method for simultaneous determination of these compounds in seafood samples. The use of QuEChERS extraction and specific clean-up strategies resulted in high recoveries and minimized matrix effects. Application of the method to commercially available samples confirmed the presence of these compounds, with negligible risk for the population when consuming fish.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Analytical
Saba Mokhtari, Elnaz Marzi Khosrowshahi, Mir Ali Farajzadeh, Mahboob Nemati, Mohammad Reza Afshar Mogaddam
Summary: A modified extraction approach using carbon nano-onions was developed for the extraction of pesticides from grape, resulting in low limits of detection and high extraction recoveries. This method can be used for the analysis of grape samples.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Analytical
Baohua Zheng, Yunhan Yu, Meiling Wang, Jianwu Wang, Huilan Xu
Summary: A method using high-performance liquid chromatography-tandem mass spectrometry coupled with the quick, easy, cheap, effective, rugged and safe approach was established for qualitative and quantitative detections of 20 mycotoxins in milk. The method showed a wide linear range, high correlation coefficients, and accurate quantitation of mycotoxins.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Analytical
Lei Lv, Hang Su, Shanbin Chen, Jinxing He, Yuhong Yang, Yuan Liu, Hanzhu Xing
Summary: A method using quick, easy, cheap, effective, rugged, and safe extraction and gas chromatography-mass spectrometry analysis was developed to detect 3-chloro-1,2-propanediol in rat tissues. The method showed good linearity, low limits of detection and quantification, high recovery rates, and acceptable matrix effects. The dynamic changes of 3-chloro-1,2-propanediol in rat tissues after oral administration were observed, with a sharp increase followed by a rapid decrease and stabilization at 12 hours. The compound persisted in the kidney, testis, and liver 24 hours after administration.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)