Results 71 to 80 of about 454,598 (214)

Determination of Total Petroleum Hydrocarbon (TPH) and Polycyclic Aromatic Hydrocarbon (PAH) in Soils: A Review of Spectroscopic and Nonspectroscopic Techniques [PDF]

, 2013
In the analysis of petroleum hydrocarbon-contaminated soils for total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs), the roles of spectroscopic and nonspectroscopic techniques are inseparable.
Mouazen, Abdul Mounem, Okparanma, Reuben N.   +1 more
core   +1 more source

Illuminating Olympicenes: Insights Into Anti‐Kasha Photophysics in Polycyclic Aromatic Hydrocarbons

Chemistry – A European Journal, EarlyView.
Compact olympicene‐based chromophores reveal unexpectedly rich excited‐state behavior, including dual fluorescence, excitation‐dependent emission, and anti‐Kasha‐type emission. Tunable locally excited and intramolecular charge‐transfer states emerge from subtle structural changes, expanding the design rules for polycyclic aromatic chromophores and ...
Wenlong Li, Stephen Awuku, Mia E. Dionne, Jordyn L. Gunderson, Marc R. MacKinnon, Amy L. Stevens   +5 more
wiley   +1 more source

Detecção de fumonisinas e hidrocarbonetos policíclicos aromáticos em grãos de soja (Glycine Max L.) e efeito de diferentes temperaturas de secagem [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Ciência dos Alimentos, Florianópolis, 2015.A soja é uma cultura produzida em um sistema de agricultura moderna, portanto baseado no
Garcia, Laura Pereira
core  

Regioisomerism Rewires Optical and Ion Recognition Properties in Azulenylsumanenes—Curved Non‐Alternant π‐Systems

Chemistry – A European Journal, EarlyView.
Regioisomerism rewires orbital topology and electronic polarity in curved non‐alternant π‐systems, switching both optical response and alkali metal ion recognition from Na+ to Rb+ selectivity. ABSTRACT Herein, we explore the fundamental concept of combining the molecular curvature of a molecular fragment of buckminsterfullerene with the pronounced ...
Jakub Cyniak, Anna Mazur, Bartłomiej Pigulski, Hidehiro Sakurai, Artur Kasprzak   +4 more
wiley   +1 more source

Origin and Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Mediterranean Mussels (Mytilus Galloprovincialis, Lamarck, 1819) of the Turkish Straits System

, 2020
The distribution of selected polycyclic aromatic hydrocarbons (PAHs) in mussels (Mytilus galloprovincialis) in the coast of the Turkish Straits System (TSS) was determined using high-performance liquid chromatography (HPLC). According to the results, the
Balcioglu, Esra Billur, Aksu, Abdullah, Balkis, Nuray, Ozturk, Bayram   +3 more
core   +1 more source

Prenatal airborne polycyclic aromatic hydrocarbon exposure and child IQ at age 5 years. [PDF]

, 2009
Objective: This study evaluated the relationship between prenatal exposure to airborne polycyclic aromatic hydrocarbons (PAHs) and child intelligence.
Li, Zhigang, Whyatt, Robin, Rauh, Virginia, Perera, Frederica P, Hoepner, Lori, Wang, Shuang, Camann, David   +6 more
core   +1 more source

A Naphthalenediimide–Imidazolium Macrocycle for Orthogonal Molecular Recognition

Chemistry – A European Journal, EarlyView.
One host, two recognition modes: a naphthalenediimide–imidazolium macrocycle switches between π‐driven encapsulation and hydrogen‐bonding to bind structurally diverse molecular and metal‐complex guests. ABSTRACT A naphthalenediimide‐imidazolium macrocycle is shown to function as a dual‐site supramolecular host for orthogonal molecular recognition.
Joel Martínez‐Visiedo, Susana Ibáñez, Eduardo Peris   +2 more
wiley   +1 more source

Emissions of Polycyclic Aromatic Hydrocarbons (PAHs) from the Use of Scented Candles Under Different Environmental Conditions

Toxics
This study investigated the effects of environmental conditions on polycyclic aromatic hydrocarbon (PAH) emissions from scented candles during combustion.
Chun-Yu Chen, Chiao-Ling Shih, Yu-Chieh Kuo, Perng-Jy Tsai   +3 more
doaj   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

Widespread Detection of Aromatic and Aliphatic Emission in the Dual Quasar J0749+2255 at Cosmic Noon

The Astrophysical Journal Letters
Based on the integral field observations made with the Mid Infrared Instrument on board the James Webb Space Telescope (JWST), we report a widespread detection of aromatic and aliphatic hydrocarbon emission at rest-frame 3.3 and 3.4 μ m in SDSS J074922 ...
C. E. Mentzer, Aigen Li, X. J. Yang
doaj   +1 more source