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A New Enrichment Method for Quantification of 5-Hydroxymethylfurfural by Indirect Flame Atomic Absorption Spectrometry in Honey and Jam Samples
(OXFORD UNIV PRESS INCJOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513, 2021)
Background: Because of increasing amounts of 5-hydroxymethylfurfural (5-HMF) in processed foods and the complexity of the matrix, monitoring of trace 5-HMF requires accurate and reliable methods. Hence, an efficient sample ...
Half-inverse problems for the quadratic pencil of the Sturm–Liouville equations with impulse
(2021)
In this paper, we consider the inverse spectral problem for
the impulsive Sturm–Liouville differential pencils on [0, π]
with the Robin boundary conditions and the jump conditions
at the point 𝜋������
2
. We prove ...
Selective extraction and enrichment of 5-hydroymethylfurfural from honey, molasses, jam and vinegar samples prior to sensitive determination by micro-volume UV-vis spectrophotometry
(CADEMIC PRESS INC ELSEVIER SCIENCE525 B ST, STE 1900, SAN DIEGO, CA 92101-4495, 2021)
In this study, a new method was developed for the extraction/enrichment of 5-hydroxymethylfurfural (5-HMF) from sample matrix prior to analysis. The method is based on the selective formation of the imine adduct and ionpair ...
Investigations substituent effect on structural, spectral and optical properties of phenylboronic acids
(ELSEVIER, 2021)
Ortho- and para-substituent arylboronic acid are investigated. Geometric structure and structural proper ties of these compounds are done. IR and NMR spectrum are calculated for the spectral characterizations.
Contour ...
Eco-friendly trace analysis of silver in beer/wine samples using a new co-polymeric nanocomposite based-ultrasound assisted-cloud point extraction combined with spectrophotometry
(ACADEMIC PRESS INC ELSEVIER SCIENCE525 B ST, STE 1900, SAN DIEGO, CA 92101-4495, 2021)
In this study, a new magnetic nanocomposite based on the tris(2-hydroxymethyl)aminomethane-modified poly (styrene-co-N-maleimide) copolymer and Fe3O4 nanoparticles were prepared as a new micellar interface for preconcentration ...
Equilibrium, Thermodynamic, and Density Functional Theory Modeling Studies for the Removal of Dichromate Ions from Wastewater Using Calix[4]arene Modified Silica Resin
(ACS, 2021)
Water is contaminated by different toxicants such as anions, cations, and organic waste products. In this regard, this study reveals the removal of Cr2O7 ions from water using calix[4]arene modified silica (CMS) resin under ...
Analysis of genetic variation in an important pest, Tuta absoluta, and its microbiota with a new bacterial endosymbiont
(Turkish Journal of Agriculture and Forestry, 10/02/2021)
Tomato leaf miner is an aggressive and invasive pest that causes serious damage in tomato production, resulting in up to
100% yield losses during serious outbreaks. The management of tomato leaf miner with synthetic ...
Experimental and theoretical study of new Schiffbases based on imidazo(1,2-a)pyridine as corrosion inhibitor of mild steel in 1M HCl
(Elsevier, Şubat 2021)
In this work, we report a study on the synthesis and characterization, using several spectroscopic techniques such as IR, 13C NMR, 1H NMR and mass spectroscopy, of a new series of Schiff bases based on imidazo(1,2a)pyridine ...
Mitochondrial Phylogenomics of Tenthredinidae (Hymenoptera: Tenthredinoidea) Supports the Monophyly of Megabelesesinae as a Subfamily
(Insects, 26/05/2021)
Tenthredinidae represents one of the external feeders of the most diverse superfamily, Ten-
thredinoidea, with diverse host plant utilization. In this study, four complete mitochondrial genomes
(mitogenomes), those of ...
Halogens effect on spectroscopy, anticancer and molecular docking studies for platinum complexes
(Elsevier, Ekim 2021)
Pt(dpb)Cl, Pt(Fdpb)Cl, Pt(F2dpb)Cl and Pt(dpb)I complexes are examined by computational chemistry method in all aspects. Hartree-Fock (HF) and Density Functional Theory (DFT) methods at B3LYP and M062X level of functions ...