Results 181 to 190 of about 37,547 (266)

Evaluating the Limitations of One-Dimensional High-Temperature Gas Chromatography - FID for Wax Solution Analysis: A Systematic Study. [PDF]

J Sep Sci
Okasaki FB, Pinheiro IF, Bizarre L, Guersoni VCB.   +3 more
europepmc   +1 more source

A Sub-Milliwatt Graphene-Based Thermal Conductivity Detector for On-Site Gas Analysis. [PDF]

Sensors (Basel)
Sium FS, Peng Y, Tran S, Mahmud KR, Hasan MR, Noh S, Mastrangelo CH, Kim H.   +7 more
europepmc   +1 more source

Schiff Base‐UiO66 Composite‐based Dispersive Micro Solid‐Phase Extraction of Pesticides From Fruit Juices Combined With Dispersive Liquid‐Liquid Microextraction Prior to Gas Chromatography‐Flame Ionisation Detection

Analytical Science Advances, Volume 7, Issue 2, December 2026.
ABSTRACT A dispersive micro solid‐phase extraction method was introduced using a Schiff base‐UiO66 nanocomposite as the adsorbent in the extraction of multi‐class pesticide residues in pear, cherry, grape, and apricot juices. The extraction procedure was hyphenated with a liquid‐phase microextraction procedure, providing a high preconcentration factor ...
Behnam Hosseininezhad, Mahdi Bomorovat, Mahboob Nemati, Mir Ali Farajzadeh, Ramin Atazadeh, Mohammad Reza Afshar Mogaddam   +5 more
wiley   +1 more source

Mobility-Based Ionization Detector with a Soft X-ray Source. [PDF]

Anal Chem
Piwowarski K, Ławreńczyk J, Kędzierski M, Puton J.   +3 more
europepmc   +1 more source

Beyond Total Content: Assessing the Bioaccessibility of Metals in Tattoo Inks Using Validated Extraction Media

Analytical Science Advances, Volume 7, Issue 2, December 2026.
ABSTRACT A validated analytical workflow is presented for determining total and bioaccessible concentrations of regulated elements in tattoo inks, addressing the lack of harmonized protocols for comparing extraction approaches in complex matrices. Although current legislation defines limits for soluble fractions of selected metals, it does not specify ...
Maria Luisa Astolfi, Lorenzo Zara, Arianna Antonucci, Carmela Protano   +3 more
wiley   +1 more source

Preliminary Evaluation of In Situ Chemical Oxidation Effects on Soil Carbon Dioxide Emission in a Soil Slurry System

Remediation Journal, Volume 36, Issue 2, Spring 2026.
ABSTRACT In situ chemical oxidation (ISCO), a remediation technology for soil and groundwater contamination, utilizes oxidants that can impact the soil environment and indirectly influence soil CO2 emissions. Understanding these emissions may support more sustainable ISCO applications by enabling adjustments to treatment conditions that limit ...
Wei‐Jiun Wang, Chenju Liang
wiley   +1 more source

GC-FID quantification of methanol, ethanol, 2-propanol, acetone, ethylene glycol, diethylene glycol, 1,2-propylene glycol and 1,3-propylene glycol in plasma. [PDF]

J Anal Toxicol
El Amrani M, Zandbergen A, Groot M, Bognar T, Smeijsters EH, van der Elst KCM.   +5 more
europepmc   +1 more source

A Dual GC–MS and LC–MS/MS Analytical Strategy for Evaluating Free Chlorine Toxicity in Aqueous Samples

Rapid Communications in Mass Spectrometry, Volume 40, Issue 20, 30 October 2026.
ABSTRACT Rationale Chlorine gas is a highly toxic industrial chemical that poses a significant risk in accidental releases and deliberate terrorist attacks. Reliable analytical methods for the determination of chlorine in aqueous samples are therefore required for forensic and environmental investigations.
Avital Shifrovitch, Adi Tzadok, Moran Madmon, Avi Weissberg   +3 more
wiley   +1 more source

CO2 and N2O Emissions From Vehicles in Seoul Megacity, South Korea: Insights From Mixing Ratio and Stable Isotope Ratios

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Vehicular traffic is a major source of anthropogenic greenhouse gases in megacities; however, real‐world constraints on vehicle‐derived N2O emissions and their isotopic characteristics remain limited. Methods Air samples were collected from three tunnels and urban background sites (a university campus and mountain) in Seoul, South ...
Jeongeun Kim, Jinho Ahn, Sambit Ghosh, Sakae Toyoda, Shinji Morimoto, Hyunsuk Choi, Jaehoen Jung, Hungyu Lee   +7 more
wiley   +1 more source