Results 21 to 30 of about 11,905 (54)

A Practical Method for Determination of Nine Nucleosides in Tricholoma matsutake by UPLC/MS and Quantitative Analysis of Multicomponents Using Single Marker Method

Journal of Analytical Methods in Chemistry, 2021
Nucleosides can be used as quality evaluation indicators of Tricholoma matsutake. In this work, a new ultra-performance liquid chromatography-tandem mass spectrometry (UPLC/MS) strategy for quantitative analysis of multiple components using a single ...
Li Yong, An-Qin Leng, Zhi-Xiang Yang, Ying Xue   +3 more
doaj   +1 more source

Computationally guided fabrication of chlorpyrifos electrochemical sensor based on molecularly imprinted polymer decorated with au nanoparticles

Talanta Open
Food safety is a priority for life; that is why pesticide levels are controlled worldwide. Chlorpyrifos (CPF) is one of the oldest and cheapest organophosphorus pesticides, which is now globally banned except for eleven crops.
Martin N. Saad, Amr M. Mahmoud, Mina Wadie, Sawsan M. Amer, Ibrahim M. El-Sherbiny, Hoda M. Marzouk   +5 more
doaj   +1 more source

Greening Ultrasound-Assisted Extraction for Sorghum Flour Multielemental Determination by Microwave-Induced Plasma Optical Emission Spectrometry

Journal of Analytical Methods in Chemistry, 2021
Sorghum is the fourth most important cereal produced in Argentina and the fifth worldwide. It has good agronomic characteristics and could be developed in arid areas, allowing a wide geographic distribution.
María Isabel Curti, Florencia Cora Jofre, Silvana M. Azcarate, José M. Camiña, Pablo D. Ribotta, Marianela Savio   +5 more
doaj   +1 more source

Ecotoxicity prediction of chemical compounds using machine learning and different molecular structure representations

Green Analytical Chemistry
Advancements in computational tools have facilitated interdisciplinary approaches in toxicology, enabling chemists to explore the toxicity and ecotoxicity of chemical compounds while minimizing ethically questionable or hazardous methods.
Michał Marek, Rafał Kurczab
doaj   +1 more source

Facile Analytical Methods to Determine the Purity of Titanium Tetrachloride

International Journal of Analytical Chemistry, 2018
We propose a simple method to investigate both the qualitative and quantitative properties of titanium tetrachloride. The selection and concentration of the employed solvent were found to be very important in the analysis of highly reactive titanium ...
Dongwook Lim, Sang-Deuk Kim, Hyungseok Kong, Daehyeon Nam, Sang Eun Shim, Sung-Hyeon Baeck   +5 more
doaj   +1 more source

A double-layered paper-based analytical device for speciation and simultaneous determination of iron in waters within single-shot analysis

Talanta Open
This work demonstrates the use of a paper-based analytical device (PAD) for the speciation and the simultaneous determination of iron (Fe) in waters within a single-shot analysis. The PAD is designed as having stacked, double layers viz., the topside and
Surachet Thongchan, Punyapat Sookpotarom, Wiboon Praditweangkum, Panumart Thongyoo, Neso Sojic, Nathawut Choengchan   +5 more
doaj   +1 more source

A Sensitive Resonance Rayleigh Scattering Method for Na+ Based on Graphene Oxide Nanoribbon Catalysis

International Journal of Analytical Chemistry, 2018
The gold nanoparticle reaction of HAuCl4-H2O2 was very slow under 60°C, and the as-prepared graphene oxide nanoribbons (GONRs) exhibited strong catalysis of the reaction to form gold nanoparticles (AuNP) that appeared a resonance Rayleigh scattering (RRS)
Haidong Wang, Chongning Li, Yanghe Luo, Zhiliang Jiang   +3 more
doaj   +1 more source

Reference Question Data Mining [PDF]

, 2010
This exploratory study investigated the feasibility of using reference questions as an important tool in the construction of study guides, instructional outreach, and collection development at a small, four-year university in Lake Charles, Louisiana. The
Finnell, Joshua, Fontane, Walt
core   +1 more source

Exploration of comprehensive two-dimensional liquid chromatography: Theoretical aspects and practical considerations - A tutorial

Journal of Chromatography Open
Comprehensive two-dimensional liquid chromatography (LC×LC) is a valuable tool for the analysis of very complex samples. LC×LC, which involves the coupling of two or more orthogonal separation systems, is a potential alternative to the conventional ...
Katia Arena, Francesco Cacciola, Roberto Laganà Vinci, Paola Dugo, Luigi Mondello   +4 more
doaj   +1 more source

A Study on DSLM Transporting the Rare Earth Metal La (III) with a Carrier of PC-88A

International Journal of Analytical Chemistry, 2018
This paper studies transmission behavior of La (III) in dispersed supported liquid membrane (DSLM) of dispersed phase constituted by dispersed supported liquid membrane solution and HCl solution with polyvinylidene fluoride membrane (PVDF) as support and
Shibao Lu, Yan Wang, Liang Pei, Wei Li
doaj   +1 more source