Showing 561 - 580 results of 22,558 for search 'detection sampling', query time: 0.20s Refine Results
  1. 561

    Current chromatographic methods to determine cannabinoids in biological samples: A review of the state-of-the art on sample preparation techniques by Igor Gustavo Carvalho Oliveira, Caroline Fernandes Grecco, Israel Donizeti de Souza, Maria Eugênia Costa Queiroz

    Published 2024-12-01
    “…In this context, developing chromatographic analytical methods to determine THC, CBD, their metabolites, and other cannabinoids in biological samples is essential in the forensic field, to detect illicit use of cannabis, and medical field, to prospect pharmaceutical applications of cannabinoids and cannabis-based products. …”
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  2. 562

    In Vitro Passive eDNA Sampling Provides a Cost‐Effective Alternative for Large Scale Sample Collection by Samuel Thompson, Simon Jarman, Kingsley Griffin, Matthew Heydenrych, Julian Partridge, Tim Langlois

    Published 2025-05-01
    “…We show that at a species level, in vitro passive sampling methods can return comparable species richness estimates to conventional filtration at both estuarine and inshore marine locations when analyzed as detections per unit of time taken to process the sample. …”
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  3. 563

    Novel plant extract-chitosan nanocomposite (SCE/ChNPs) biosensor for trace level arsenic sensing in water samples using quartz crystal microbalance with dissipation monitoring by Miad Ali Siddiq

    Published 2025-01-01
    “…This study introduces a novel green biosensor for ultra-low arsenic detection in water, combining Saussurea costus ethanolic extract (SCE) with chitosan nanoparticles (ChNPs) in a Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) system. …”
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  4. 564

    Design of a cost-effective fiberglass-coated thin-film microextraction device for the detection of bendiocarb, carbofuran and atrazine agrochemicals from water by Harshika Poojary, Sophia Koo, Chiranjit Ghosh

    Published 2025-12-01
    “…To optimize the sample preparation technique, various parameters, including extraction time, temperature, desorption time, solvent profile, ionic strength, and stirring rate, were investigated with the 2000ng/mL standard mixture of three agrochemicals. …”
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  5. 565

    Epirubicin-sensitive detection with a CoWO4/reduced graphene oxide modified screen-printed electrode by Somayeh Tajik, Razieh Moghimian, Hadi Beitollahi

    Published 2025-05-01
    “…The sensitivity and limit of detection were 0.1529 μA μM-1 and 0.007 μM, respectively. …”
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    Detection rate for ESR1 mutations is higher in circulating‐tumor‐cell‐derived genomic DNA than in paired plasma cell‐free DNA samples as revealed by ddPCR by Stavroula Smilkou, Aliki Ntzifa, Victoria Tserpeli, Ioanna Balgkouranidou, Alkistis Papatheodoridi, Evangelia Razis, Helena Linardou, Christos Papadimitriou, Amanda Psyrri, Flora Zagouri, Stylianos Kakolyris, Evi Lianidou

    Published 2025-07-01
    “…Eight out of 90 (8.9%) plasma‐cfDNA samples tested using the ddPLEX Mutation Detection Assay (Bio‐Rad, Hercules, CA, USA), were found positive for one ESR1 mutation, whereas 11/42 (26.2%) CTC‐derived gDNA samples were found positive for at least one ESR1 mutation. …”
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  10. 570

    A Comparison of Four Molecular Methods for Detection of Aflatoxin-Producing Aspergillus in Peanut and Dried Shrimp Samples Collected from Local Markets around Pathum Thani Province, Thailand by Ratchanok Kumsiri, Panan Kanchanaphum

    Published 2020-01-01
    “…The four molecular methods, namely, conventional isothermal amplification (LAMP), PCR, quantitative LAMP (qLAMP), and qPCR, were compared to determine their efficiency for A. flavus detection. Thirty samples of peanut and dried shrimp were collected from 15 markets around Pathum Thani Province in Thailand. …”
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  11. 571

    Multiple Co-Infecting Caliciviruses in Oral Fluid and Enteric Samples of Swine Detected by a Novel RT-qPCR Assay and a 3′RACE-PCR-NGS Method by Zoltán László, Péter Pankovics, Péter Urbán, Róbert Herczeg, Gyula Balka, Barbara Igriczi, Attila Cságola, Mihály Albert, Fruzsina Tóth, Gábor Reuter, Ákos Boros

    Published 2025-01-01
    “…In enteric samples, Sw-SaV was the most prevalent, detected in 26.26% of samples, primarily in diarrheic pigs with low Cq values, followed by Sw-NoV (2.53%) in nursery pigs. …”
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    Unconstrained Metropolis–Hastings Sampling of Covariance Matrices by Daniel Turek

    Published 2025-01-01
    “…Covariance or precision matrices offer a unique sampling challenge due to the constraints on the elements of symmetric positive-definite matrices. …”
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  17. 577

    Methods to account for incomplete viewsheds in distance sampling by David M. Delaney, Tyler M. Harms, Jonathan P. Harris, Dan J. Kaminski, Jace R. Elliott, Stephen J. Dinsmore

    Published 2025-06-01
    “…We simulated three datasets to test how variation in the viewshed structure affects estimates of detection probability, abundance, and density. We then implemented a novel application of Bayesian distance sampling models to test the magnitude of parameter bias recovered by accounting for incomplete viewsheds. …”
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  18. 578

    Development and validation of highly sensitive multiplex real-time RT-PCR assay for detection of classical swine fever virus genome by A. S. Sadchikova, A. S. Igolkin, R. S. Chernyshev, A. A. Kozlov, I. S. Kolbin, A. V. Sprygin, D. A. Biryuchenkov, I. A. Chvala, A. Mazloum

    Published 2024-09-01
    “…Therefore, areal-time reverse transcription-polymerase chain reaction using an internal control sample has been developed. Therefore, areal time reverse transcription-polymerase chain reaction using an internal control sample has been developed. …”
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  19. 579

    Sensitive and Facile Detection of Aloin via N,F-CD-Coated Test Strips Coupled with a Miniaturized Fluorimeter by Guo Wei, Chuanliang Wang, Rui Wang, Peng Zhang, Xuhui Geng, Jinhua Li, Abbas Ostovan, Lingxin Chen, Zhihua Song

    Published 2025-07-01
    “…The results indicate that N,F-CD-coated test strips are applicable for the quantitative determination of aloin in bovine serum, orange juice, and urine samples.…”
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  20. 580

    Introducing a Novel Paper Point Method for Isolated Apical Sampling—The Controlled Apical Sampling Device: A Methodological Study by Christoph Matthias Schoppmeier, Gustav Leo Classen, Silvia Contini, Paul Rebmann, David Brendlen, Michael Jochen Wicht, Anna Greta Barbe

    Published 2025-06-01
    “…Following sample collection, cultural detection of bacterial presence was performed by incubating the samples on agar plates to confirm the presence of <i>E. coli</i>. …”
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