Results 121 to 130 of about 20,127 (298)

Supercritical Fluid Chromatography for Expedited Sample Clean‐Up in Isotope Ratio Mass Spectrometry Including Cholesterol as New Endogenous Reference Compound

Drug Testing and Analysis, EarlyView.
Supercritical fluid chromatography was employed in the sample preparation for IRMS determinations in sports drug testing for the first time and the developed method was successfully validated. Cholesterol (CHOL) was introduced as a novel endogenous reference compound and population‐based Δ‐values were established as shown here.
Thomas Piper, Jana Drewes, Mario Thevis
wiley   +1 more source

Simultaneous Detection of Steroid Esters and Multi‐Class Substances in Dried Blood Spots by LC‐HRMS/MS From a Single Spot for Human Doping Control

Drug Testing and Analysis, EarlyView.
A validated LC‐HRMS/MS method enabled, for the first time, the comprehensive detection of steroid esters and multi‐class menu substances from a single dried blood spot. Following extraction, the resulting extract is split into two aliquots, reducing sample consumption and simplifying the analytical workflow.
Panagiotis Sakellariou, Andreas Thomas, Sebastian Marcel Schröder, Jasmin Thelen, Mario Thevis   +4 more
wiley   +1 more source

Parthenay (Deux-Sèvres). Fortifications

, 1997
Cavaillès Maria. Parthenay (Deux-Sèvres). Fortifications. In: Archéologie médiévale, tome 27, 1997.
Cavaillès, Maria
core   +1 more source

Quantitative study on the three-dimensional defense of Puzhuang Suo-Fort ancient wall and the moat. [PDF]

PLoS One, 2023
Shen S, Tan L, Wang C, Zhao P, Liu H, Zhou J, Wang Y, Yuan H.   +7 more
europepmc   +1 more source

A Single‐Aliquot Strategy for Simultaneous Carbon Isotope Confirmation of 6‐Oxo‐Androstenedione and Testosterone Misuse in Doping Control

Drug Testing and Analysis, EarlyView.
This method enables simultaneous carbon isotope confirmation of 6‐oxo‐androstenedione and testosterone markers from a single urine aliquot, using bench‐top extraction, two preparative HPLC steps with intermediate acetylation, and GC/C/IRMS analysis. It was fully validated according to WADA requirements, and real samples demonstrated its fitness for ...
Fábio Azamor de Oliveira, Cristiane Abrantes da Silva, Carolina dos Reis Farias, Mariana Trad Rosner da Motta, Thais Reis da Silva, Natasha Veiga Louzada, Monica Costa Padilha, Henrique Marcelo Gualberto Pereira   +7 more
wiley   +1 more source

CIUDAD RODRIGO (Salamanca). Estrategia militar. 18 (1810). 1:3.800

Presenta el plano de la ciudad y parte de sus alrededoresEscala hallada por comparación con el documento de sign. SGE-Ar.E-T.6-C.3-390Relieve representado por normalesIndica las posiciones ocupadas por las tropas durante el asedio a la ciudadSello del ...
Francia. Dépot des fortifications, Verán, J.   +1 more
core  

Retrospective Study on the Power and Interpretation of Chiral Amphetamine Analysis in Hair for Forensic Applications

Drug Testing and Analysis, EarlyView.
A decision model for the interpretation of chiral amphetamine analysis in hair was established based on the enantiomeric fraction (EF) of (S)‐amphetamine in authentic hair samples. Two chiral analysis methods (indirect/direct) were consecutively applied to distinguish between illicit and therapeutic amphetamine use in forensic cases.
Liesl K. Janssens, Milena M. Madry, Andrea E. Steuer, Tina M. Binz   +3 more
wiley   +1 more source

Fortifications de Lille

, 1909
Serbat Louis. Fortifications de Lille. In: Bulletin Monumental, tome 73, année 1909.
Serbat, Louis
core   +1 more source

Yonstiu, fortifications Anglaises

, 1884
Manuscrit: «Yonstiu, fortifications Anglaises». - Yonstiu.

core  

Intra‐Individual Variability of Blood and Urinary Steroid Markers and the Response to Codeine Intake in Healthy Men and Women

Drug Testing and Analysis, EarlyView.
Short‐term codeine administration (1–3 days) caused individual alterations in Athlete Biological Passport steroid markers, including elevated urinary T/E ratios and decreased serum testosterone concentrations below individual thresholds, despite no significant changes at the group level.
Alexander Andersson, Basam Yousif, Anton Pohanka, Annica Börjesson, Mikael Lehtihet, Lena Ekström   +5 more
wiley   +1 more source