A rapid chromatographic procedure for the quantitative determination of the anthracycline antibiotics adriamycin and daunorubicin and their chief metabolites adriamycinol and daunorubicinol in plasma and urine is described. The extraction is performed using SEP-PAK silica cartridges. After filtration the eluate is chromatographed on a reversed-phase column.
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Biosensors (Basel)
January 2025
Department of Bioengineering, Faculty of Engineering, Ege University, 35040 Izmir, Türkiye.
Drug abuse is a major public problem in the workplace, traffic, and forensic issues, which requires a standardized test device to monitor on-site drug use. For field testing, the most important requirements are portability, sensitivity, non-invasiveness, and quick results. Motivated by this problem, a point of care (POC) test based on lateral flow assay (LFA) was developed for the detection of cocaine (COC) and methamphetamine (MET) in saliva which has been selected as the matrix for this study due to its rapid and non-invasive collection process.
View Article and Find Full Text PDFAnal Bioanal Chem
January 2025
Department of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, Gainesville, FL, USA.
An increasing number of cannabis-related products have become available and entered the market, particularly those containing cannabidiol (CBD) and Δ-tetrahydrocannabinol (Δ-THC). Analytical methods for cannabinoids in urine have been described extensively in the literature. However, methods providing good resolution for distinguishing interferences from THC positional isomers are needed.
View Article and Find Full Text PDFAnalyst
January 2025
Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA.
Various technical methodologies are required to accurately detect substances of different chemical and pharmacological properties in biological samples, which are increasing in number and variety daily. Therefore, laboratories where many samples and different factors are analyzed simultaneously need methods with easy sample preparation, short analysis times and low analysis costs. In this study, the objective was to scan substances susceptible to chemical degradation, amenable to analysis without hydrolysis, and exhibiting short-term stability by employing a straightforward, expeditious, and cost-efficient method.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Key Laboratory of Systems Bioengineering and Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin 300350, China. Electronic address:
Emerging variants of SARS-CoV-2 pose great technological and regulatory challenges to vaccine manufacturing, especially in downstream processing. To address this dilemma, the development of broad-spectrum affinity chromatography for the purification of wild-type SARS-CoV-2 and its variants is crucial. We propose a comprehensive strategy to achieve this goal via the identification of high-affinity peptides by affinity selection of phage display and next-generation sequencing (NGS) and the evaluation of chromatographic performance.
View Article and Find Full Text PDFDrug Test Anal
January 2025
Unit of Forensic Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
Fentanyl and its derivatives (nonpharmaceutical fentanyl, NPFs) represent the largest group among synthetic opioids. Fentanyl-related deaths and fatalities from tampering with pharmaceutical products have been reported. Furthermore, in the United States, adulterants such as xylazine and other substances, including the nitazenes class of opioids, have been found in an increasing number of unintentional overdose deaths, drug seizures, and reports of use by recreational drug users.
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