Results 71 to 80 of about 3,911 (219)

Determination of 116 Pharmaceuticals and Personal Care Products in Water by Ultra‐High Performance Liquid Chromatography‐Tandem Mass Spectrometry

Journal of Separation Science, Volume 48, Issue 12, December 2025.
ABSTRACT This study examined an improved and simplified method for solid‐phase extraction that provides rapid and accurate determination and identification of 116 pharmaceutical and personal care products (PPCPs) in an aqueous environment using ultra‐high performance liquid chromatography‐tandem mass spectrometry. The common active compounds include 22
Ming Xue, Yuwei Hong, Yanhong Lu, Shaoyin Liu, Haocheng Wu   +4 more
wiley   +1 more source

Synchrotron x-ray pair distribution function: A tool to characterize cement gels [PDF]

, 2018
Cement matrices contain large amounts of crystalline phases jointly with amorphous and/or nanocrystalline phases. Consequently, their analyses are very challenging.
Cuesta-Garcia, Ana Maria, García-Aranda, Miguel Ángel, Gomez-de-la-Torre, Maria de los Angeles, Londono-Zuluaga, Diana, Santacruz-Cruz, Maria Isabel, Zea-Garcia, Jesus D.   +5 more
core  

Narrow‐Diameter Tubular One‐Dimensional van der Waals Heterostructures

Small, Volume 21, Issue 51, December 23, 2025.
Narrow 1D van der Waals heterostructures are formed by template‐assisted growth of single‐layer lutetium halide nanotubes, down to ≈1 nm diameter, inside single‐walled carbon nanotubes. The role of the halide size on nanotube formation is elucidated by means of aberration‐corrected electron microscopy and image simulations, while the electronic ...
Elzbieta Pach, Magdalena Kierkowicz, Mert Kurttepeli, Carlos Frontera, Costanza Borghesi, Giacomo Giorgi, Riccardo Rurali, Sara Bals, Gustaaf Van Tendeloo, Gerard Tobías‐Rossell, Belén Ballesteros   +10 more
wiley   +1 more source

Structural study of the local order in ammonia-modulated FE(II) hydroxyphosphonoacetate proton conductors [PDF]

, 2017
Layered Fe(II) carboxiphosphonate, Fe-HPAA·2H2O, is a crystalline multifunctional coordination polymer exhibiting properties as photocatalyst and proton conductor.
Bazaga-García, Montse, Cabeza-Diaz, Aurelio, Colodrero, Rosario M.P., Losilla, Enrique R., Olivera-Pastor, Pascual, R.Salcedo, Inés   +5 more
core  

Order–Disorder Phase Stabilization by Pressure‐Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7

Advanced Science, Volume 12, Issue 42, November 13, 2025.
A pressure‐driven charge transfer in multiferroic BaFe4O7 induces Fe valence disproportionation and structural distortion, drastically narrowing the bandgap and enhancing ferroelectric polarization. This synergistic optimization boosts photocurrent 2.5‐fold and is retained upon decompression, offering a promising strategy to overcome the ferroelectric ...
Jiayi Guan, Bihan Wang, Nana Li, Shang Peng, Ganghua Zhang, Limin Yan, Xuqiang Liu, Kai Zhang, Mingtao Li, Adama N‐Diaye, Qingyu Kong, Dongzhou Zhang, Xu Zhao, Ting Liu, Kejun Bu, Yuhong Mao, Gui Wang, Xujie Lü, Xiang Li, Tao Zeng, Wenge Yang   +20 more
wiley   +1 more source

Analysis of pesticide residues in Brazilian medicinal plants: matrix solid phase dispersion versus conventional (European Pharmacopoeia) methods

Journal of the Brazilian Chemical Society, 2003
This paper proposes a method based on matrix solid phase dispersion (MSPD) to determine the presence of organochlorine (OC) and organophosphorus (OP) pesticide residues in species of Passiflora L.
Zuin Vânia G., Yariwake Janete H., Lanças Fernando M.   +2 more
doaj  

New Vortex-Synchronized Matrix Solid-Phase Dispersion Method for Simultaneous Determination of Four Anthraquinones in Cassiae Semen

Molecules, 2019
In this study, a green ionic-liquid based vortex-synchronized matrix solid-phase dispersion (VS-MSPD) combined with high performance liquid chromatography (HPLC) method was developed as a quantitative determination method for four anthraquinones in ...
Luyi Jiang, Jie Wang, Huan Zhang, Caijing Liu, Yiping Tang, Chu Chu   +5 more
doaj   +1 more source

Application of Surface‐Enhanced Raman Spectroscopy (SERS) in Histamine Analysis of Aquatic Products: Principles, Applications, Challenges, and Prospects

Food Frontiers, Volume 6, Issue 6, Page 2698-2719, November 2025.
This review introduces the significant advantages of SERS detection of histamine, which is accurate, non‐destructive, and fast. By critically analyzing the current challenges, we propose future directions for industrializing the application of SERS in histamine detection.
Xingying Jiang, Ruizhi Yang, Jia Liang, Bin Zheng, Meiling Chen, Bin Zhang, Tao Han, Yadong Zhao, Soottawat Benjakul   +8 more
wiley   +1 more source

In-Vial Micro-Matrix-Solid Phase Dispersion for the Analysis of Fragrance Allergens, Preservatives, Plasticizers, and Musks in Cosmetics

Cosmetics, 2014
Fragrance allergens, preservatives, plasticizers, and synthetic musks are usually present in cosmetic and personal care products formulations and many of them are subjected to use restrictions or labeling requirements. Matrix solid-phase dispersion (MSPD)
Maria Celeiro, Juan Pablo Lamas, Maria Llompart, Carmen Garcia-Jares   +3 more
doaj   +1 more source

Optimal convergence rate of the multitype sticky particle approximation of one-dimensional diagonal hyperbolic systems with monotonic initial data [PDF]

, 2015
International audienceBrenier and Grenier [SIAM J. Numer. Anal., 1998] proved that sticky particle dynamics with a large number of particles allow to approximate the entropy solution to scalar one-dimensional conservation laws with monotonic initial data.
Jourdain, Benjamin, Reygner, Julien
core   +5 more sources