Article
Chemistry, Analytical
Qidong Yu, Wende Ma, Wenmin Zhang, Hui Chen, Qingqing Ding, Yuheng Guo, Jiangfan Yang, Lan Zhang
Summary: A facile and rapid in-situ room-temperature growth strategy was developed to efficiently fabricate imine-linked COF coated fibers, with high thermal and chemical stability. This strategy was successfully generalized to other two imine-linked COFs and an analytical method for trace pyrethroids detection was developed with high sensitivity and satisfactory recovery when applied to tea samples.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Yuheng Guo, Wenmin Zhang, Hui Chen, Qingqing Ding, Qingqing Li, Lan Zhang
Summary: In this study, a nitrogen doped graphitic carbon networks (NG-CNTW) coated fiber was fabricated by direct carbonization of nanosized ZIF-67 crystals for efficient extraction of pyrethroids. The NG-CNTW coating exhibited high surface area and porous structures, allowing for diffusion and adsorption of target molecules. The SPME-GC-MS/MS method showed wide linearity range, low detection limits, and good repeatability for 8 kinds of pyrethroids.
Article
Chemistry, Applied
Tiantian Chen, Xinhe Yu, Xinmeng Tian, Jiajia Hu, Yanyan Chen, Guangdou Long, Hui Xu, Guang-Fu Yang
Summary: This study provides in vivo insights into the environmental fates of insecticides in complex living systems with minimized organism damage. Results show that the half-life of insecticides in garlic ranged from 0.43 to 0.96 days, and 55.0% to 80.3% of insecticide residues in garlic were eliminated within the first 24 hours with first-order elimination kinetics.
Article
Chemistry, Analytical
Sophia A. Schreckenbach, Denina Simmons, Adam Ladak, Lauren Mullin, Derek C. G. Muir, Myrna J. Simpson, Karl J. Jobst
Summary: This study developed a suspect screening method based on industrial compounds with bioaccumulation potential. Results showed that SQDIA has a significantly lower false-positive rate compared to standard DIA. Through suspect screening and nontargeted screening, multiple pollutants were identified, with some compounds confirmed through standards and structural analysis.
ANALYTICAL CHEMISTRY
(2021)
Review
Medical Laboratory Technology
Kenichi Tamama
Summary: Drugs of abuse testing is commonly used in clinical and forensic settings, with urine being the preferred specimen type but other emerging types include saliva, sweat, hair, and meconium. Liquid chromatography-tandem mass spectrometry (LC-tandem-MS) has become the new gold standard for confirmatory drug testing due to its ability to analyze a wider range of analytes compared to gas chromatography-mass spectrometry (GC-MS). Technical advancements such as high-resolution mass spectrometry and miniature ambient ionization mass spectrometry have improved the speed and efficiency of drugs of abuse testing.
CLINICA CHIMICA ACTA
(2021)
Article
Multidisciplinary Sciences
Cara Olivier, Bianca Allen, Laneke Luies
Summary: This study optimized a urine preparation procedure for non-targeted metabolomics using GC-MS. The direct analysis method showed superior repeatability and higher metabolome coverage compared to the organic acid methods. The findings contribute to the advancement of urine metabolomics research.
SCIENTIFIC REPORTS
(2023)
Article
Food Science & Technology
Liyuan Wang, Zhengyan Hu, Jing Chen, Tianjiao Wang, Pinggu Wu, Ying Ying
Summary: This study developed a method to simultaneously detect a dozen preservatives in pastry using gas chromatography-mass spectrometry. The preservatives showed good linearity within the range of 1.0-50 μg/mL, with detection limits of 0.04-2.00 mg/kg and quantification limits of 0.12-6.67 mg/kg. The method is suitable for the determination of 12 preservatives in pastry.
Review
Chemistry, Analytical
A. Fernez Asensio, E. Alvarez-Gonzalez, A. Rodriguez, L. M. Sierra, E. Blanco-Gonzalez
Summary: Dysregulation of TCA cycle enzymes leads to abnormal accumulation of oncometabolites, which contribute to cancer formation and progression. GC-MS and LC-MS are powerful analytical tools for accurate identification and determination of these metabolites.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Applied
Petar Ristivojevic, Vesna Jovanovic, Dusanka Milojkovic Opsenica, Jihae Park, Judith M. Rollinger, Tanja Cirkovic Velickovic
Summary: A novel high-throughput methodological approach was developed for tracing compounds with radical scavenging and antimicrobial activities in brown seaweeds. Major components identified with these activities include stearidonic, eicosapentaenoic, and arachidonic acids. This method allows fast identification and quantification of bioactive compounds in multicomponent biological samples.
Article
Food Science & Technology
Mark M. Skinner, Jared T. Seale, Maranda S. Cantrell, Joseph M. Collins, Matthew W. Turner, Owen M. McDougal
Summary: This experimental study aimed to detect acrylamide in French fries using methods suitable for the food processing industry, comparing the pros and cons of each method to provide decision-making suggestions for food processors.
Article
Biochemical Research Methods
Ikuo Ueta, Syuhei Kamei, Yoshihiro Saito
Summary: A rapid and quantitative analytical method for volatile chlorinated hydrocarbons and benzene in soil samples was developed using a novel extraction device, yielding promising results in GC analysis.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Chemistry, Analytical
Ying Zhang, Bei Gao, Luis Valdiviez, Chao Zhu, Tara Gallagher, Katrine Whiteson, Oliver Fiehn
Summary: Stable isotope tracers are commonly used with gas chromatography coupled to mass spectrometry for enzyme activity and metabolic pathway studies. In this research, three commercially available instruments were used to analyze samples from a stable isotope labeling study on Rothia mucilaginosa metabolism. The study found that all three GC-MS instruments can be used for stable isotope tracing studies, with high-resolution GC-QTOF MS offering additional capabilities in identifying the chemical structures of unknown compounds.
ANALYTICAL CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Tsz Hei Fong, Wangpan Shi, Guohui Ruan, Siyi Li, Guanghui Liu, Leyun Yang, Kaibin Wu, Jingxian Fan, Chung Lam Ng, Yafang Hu, Haishan Jiang
Summary: This study retrospectively reviewed medical records and constructed a tuberculostearic acid (TBSA)-combined scoring system based on multiple factors, which showed promising results for predicting and diagnosing tuberculous meningitis (TBM).
Article
Chemistry, Multidisciplinary
Hekmat AL-Hmadi, Ridha El Mokni, Rajesh K. Joshi, Mohamed L. Ashour, Saoussen Hammami
Summary: The research focused on the effects of harvest regions on the production and analytes of Tunisian Pimpinella lutea, finding significant impacts on plant development and the quality of essential oils. Analysis of essential oils revealed three distinct chemotypes, suggesting potential industrial applications for this plant in various sectors.
APPLIED SCIENCES-BASEL
(2021)
Article
Food Science & Technology
Shi Nie, Laihao Li, Yueqi Wang, Yanyan Wu, Chunsheng Li, Shengjun Chen, Yongqiang Zhao, Di Wang, Huan Xiang, Ya Wei
Summary: This study identified and quantified volatile organic compounds (VOCs) in fermented sea bass using gas chromatography-ion mobility mass spectrometry (GC-IMS) and gas chromatography-mass spectrometry (GC-MS). Aldehydes were found to be the principal contributors to the overall flavor of fermented sea bass, and several characteristic VOCs were identified. GC-IMS was demonstrated to rapidly detect VOCs, providing a theoretical basis for studying flavor formation in fermented sea bass.
Article
Environmental Sciences
Fernando Esperon, Beatriz Albero, Maria Ugarte-Ruiz, Lucas Dominguez, Matilde Carballo, Jose Luis Tadeo, Maria del Mar Delgado, Miguel Angel Moreno, Ana de la Torre
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Chemistry, Analytical
Isabel Martin-Girela, Beatriz Albero, Brijesh K. Tiwari, Esther Miguel, Ramon Aznar
Article
Chemistry, Multidisciplinary
Beatriz Albero, Jose Luis Tadeo, Rosa Ana Perez
FRONTIERS IN CHEMISTRY
(2020)
Article
Agronomy
Jose M. Osca, Felip Galan, Hector Moreno-Ramon
Summary: The composition and quantity of soil seedbanks are influenced by environmental factors in specific areas, serving as indicators for potential weed problems in crops. A study in Valencia, Spain examined the soil seedbank composition in Mediterranean paddy fields, revealing that winter flooding reduced seedbank density with varying impacts on different plant species.
Article
Agronomy
Andrzej Salata, Renata Nurzynska-Wierdak, Andrzej Kalisz, Edward Kunicki, Sara Ibanez-Asensio, Hector Moreno-Ramon
Summary: Late nitrate fertilization with different forms of nitrogen was found to have a significant impact on the quality of Artichoke herb, with organic cropping systems showing better preservation of herb quality.
Article
Food Science & Technology
Beatriz Albero, Maria Luisa Fernandez-Cruz, Rosa Ana Perez
Summary: The aim of this study was to develop an analytical method for the simultaneous determination of multiple mycotoxins in aquaculture feed. Results showed the presence of several target mycotoxins in commercial feed samples, indicating multi-mycotoxin contamination. This highlights the need for improved understanding of the occurrence and toxicity of emerging mycotoxins in fish feed.
Article
Agronomy
Andrzej Salta, Renata Nurzynska-Wierdak, Andrzej Kalisz, Hector Moreno-Ramon
Summary: The use of living mulches can enhance the yield and phenolic compounds level in leeks and shallots, providing higher antioxidant activity. The most favorable sowing dates for clover planting are at the time of planting the leeks and shallots and three weeks after planting the plants.
Article
Agronomy
Javier Zuzunaga-Rosas, Sara Gonzalez-Orenga, Ana Maria Tofei, Monica Boscaiu, Hector Moreno-Ramon, Sara Ibanez-Asensio, Oscar Vicente
Summary: Climate change exacerbates abiotic stress, particularly salinity, on vulnerable commercial cultivars. This study explores the effects of a commercial biostimulant, BALOX (R), on enhancing salt stress tolerance in tomato plants. The results show that the biostimulant improves plant growth, reduces sodium and chloride uptake, and stimulates potassium and calcium transport. It also mitigates oxidative stress and enhances antioxidant enzyme activity. The biostimulant's positive effects are observed not only under high salinity conditions, but also under low salinity conditions, suggesting its potential as a growth enhancer.
Article
Chemistry, Analytical
Beatriz Albero, Maria Dolores Fernandez, Concepcion Garcia-Gomez, Rosa Ana Perez
Summary: This paper presents an analytical method for the determination of metribuzin and its metabolites in soil and plants. The method showed good recoveries for all compounds and was able to detect trace levels of these compounds. Experimental results also demonstrated the presence of metribuzin and its metabolites in plants treated with the herbicide.
Article
Environmental Sciences
Beatriz Albero, Esther Miguel, Ana I. Garcia-Valcarcel
Summary: To ensure the sustainability of beekeeping, it is important to manage bee colonies without endangering the lives of bees and practice acceptable actions such as the use of appropriate products to treat hives. Uncontrolled use of acaricides to combat varroosis can lead to accumulations in hives, posing risks to colonies. In this study in Andalusia, Spain, seven acaricides were evaluated in different apiaries, and it was found that beeswax had high contamination but honey, brood, and bees had acceptable levels after a certain period. Moreover, acaricides banned for Varroa control were detected in the analyzed hives, including chlorfenvinphos, cypermethrin, and acrinathrin.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Food Science & Technology
Zoe Giannioti, Beatriz Albero, Maria Dolores Hernando, Luana Bontempo, Rosa Ana Perez
Summary: Gluten-free cereal products are popular due to health benefits and safety for certain individuals. Molds that produce mycotoxins can contaminate cereal crops, posing a global food security concern. This study developed a method for detecting emerging and regulated mycotoxins in gluten-free flours, finding multi-mycotoxin contamination in all types of flour, highlighting the need for improved knowledge and regulations on mycotoxins in these products.
Article
Plant Sciences
Javier Zuzunaga-Rosas, Sara Gonzalez-Orenga, Roberta Calone, Raul Rodriguez-Heredia, Ali Asaff-Torres, Monica Boscaiu, Sara Ibanez-Asensio, Hector Moreno-Ramon, Oscar Vicente
Summary: Global warming is causing soil salinisation, which hampers crop yields in arid and semiarid regions. This study investigated the effects of a biostimulant containing glycine betaine and polyphenols on tomato plants' response to salt stress. The biostimulant improved plant growth and photosynthesis, regulated ion transport, reduced oxidative stress, and increased beneficial compounds and enzyme activity.
Article
Agronomy
Concepcion Garcia-Gomez, Rosa Ana Perez, Beatriz Albero, Ana Obrador, Patricia Almendros, Maria Dolores Fernandez
Summary: The use of zinc oxide nanoparticles and the herbicide metribuzin together in agricultural soils can affect the environmental behavior and toxicity of these chemicals to soil biota. This study found that zinc oxide nanoparticles reduced the activity of ammonium oxidase and growth in metribuzin-stressed plants, while also affecting photosynthetic pigment content and enhancing antioxidant enzymatic activities.
Article
Horticulture
Javier Zuzunaga-Rosas, Dennys Silva-Valdiviezo, Roberta Calone, Ioan Luput, Sara Ibanez-Asensio, Monica Boscaiu, Hector Moreno-Ramon, Oscar Vicente
Summary: Soil salinity is a major cause of agricultural losses, exacerbated by global warming. This study found that the use of a plant-based biostimulant can mitigate the effects of soil salinisation on tomato plants. Depending on soil texture, the biostimulant stimulated plant growth and improved biochemical responses. It also enhanced nutrient transport and protected against salt stress. These findings highlight the importance of biostimulants in sustainable agriculture.