Showing 841 - 860 results of 1,355 for search '"Toxicology"', query time: 0.05s Refine Results
  1. 841
  2. 842
  3. 843
  4. 844
  5. 845
  6. 846

    Long-Term Stability of Hydromorphone in Human Plasma Frozen at −20°C for Three Years Quantified by LC-MS/MS by Andreas Wehrfritz, Stefanie Schmidt, Harald Ihmsen, Jürgen Schüttler, Christian Jeleazcov

    Published 2022-01-01
    “…The long-term stability of drugs under normal laboratory storage conditions (−20°C) for years is important for research purposes, clinical re-evaluation, and also for forensic toxicology. To evaluate the stability of the analgesic opioid hydromorphone, 44 human frozen plasma samples of a former clinical trial were reanalyzed after at least three years. …”
    Get full text
    Article
  7. 847
  8. 848
  9. 849
  10. 850
  11. 851
  12. 852
  13. 853
  14. 854

    Unlocking the potential of hydrogen deuterium exchange via an iterative continuous-flow deuteration process by Kevin Tatoueix, Marco Lepron, Cédric Barboux, Marie-Christine Scherrmann, Grégory Pieters, Sophie Feuillastre

    Published 2025-02-01
    “…Abstract Labelled compounds bearing hydrogen isotopes are keystones in diverse areas constituting a multi-billion dollar global market including drugs, diagnostics, biology, toxicology and smart materials. While hydrogen deuterium exchange (HDE) methods hold promise as relevant tools for the late-stage and one-step preparation of deuterium-labelled compounds, they often fall short in achieving sufficient isotopic purity combined either with a site-selectivity or with a full deuteration process, highlighting the need for further development and optimisation. …”
    Get full text
    Article
  15. 855
  16. 856
  17. 857
  18. 858
  19. 859
  20. 860

    Giant Pheochromocytoma Diagnosis Confounded by Amphetamine Use by Shreya Amin, Matthew Gilbert, Kaitlyn Barrett

    Published 2023-01-01
    “…However, the patient’s subsequent urine toxicology was found to be positive for amphetamines, which she later admitted to using, 1 week prior to admission. …”
    Get full text
    Article