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http://dx.doi.org/10.1111/codi.17112 | DOI Listing |
J Mass Spectrom
October 2025
Graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil.
The laboratory analysis of new psychoactive substances and related drugs is crucial for accurate clinical and forensic diagnosis of poisonings. Given this, a new LC-MS/MS method for analyzing hallucinogens, synthetic cathinones, and synthetic cannabinoids in urine was developed. Urine samples were extracted using a liquid-liquid extraction protocol optimized via a multivariate experimental design.
View Article and Find Full Text PDFEnviron Monit Assess
September 2025
College of Ecological and Environmental Engineering, Guizhou Minzu University, Guiyang, 550025, China.
The rapid development of industry and agriculture has led to a significant increase in the toxicity and pollution of cadmium (Cd) and lead (Pb) in soil. Consequently, soil remediation employing biochar or modified biochar has emerged as a cost-effective and environmentally sustainable approach to address the issue of heavy metal (HM) ion pollution. PEI-functionalization biochar (PBC) derived from corn straw (PBCC), wood straw (PBCW), and rice straw (PBCR) was synthesized to immobilize Cd and Pb in contaminated acidic yellow soil.
View Article and Find Full Text PDFMar Pollut Bull
September 2025
Ecological Risk Research Department, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea; Department of Ocean Science, KIOST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea. Electronic address:
Eutrophication in semi-enclosed coastal systems remains a persistent concern due to restricted water circulation and continuous nutrient inputs. To better characterize nutrient-driven water quality degradation, we applied a threshold-based analysis to seasonal monitoring data collected from Masan Bay, South Korea, between 2010 and 2015. Eutrophication status was assessed using a composite Eutrophication Index (EI) integrating chemical oxygen demand (COD), dissolved inorganic nitrogen (DIN), and dissolved inorganic phosphorus (DIP).
View Article and Find Full Text PDFOrg Lett
September 2025
State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
A concise enantioselective total synthesis of (+)-lucidumone, a caged polycyclic meroterpenoid with a bicyclo[2.2.2]octane skeleton, was accomplished in 10 steps (LLS) starting from commercially available 2-cyclohexen-1-one.
View Article and Find Full Text PDFRev Sci Instrum
September 2025
LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 118 route de Narbonne, 31062 Toulouse, France.
A two-axis thrust stand is developed and validated experimentally, enabling direct and simultaneous measurements of two components of the thrust vector of an electric thruster. It is made of two piled-up single-axis stages, each having a hanging deformable parallelogram geometry. A mass deposition calibration method is used to calibrate the thrust stand, including crosstalk between axes.
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