The influence of Calcofluor white M2R (=Tinopal LPW=fluorescent brightener 28), a fluorescent brightener, on the laboratory activity of a nuclear polyhedrosis virus (AfMNPV) isolated from the celery looperAnagrapha falcifera(Kirby) was determined. The species challenged with and without M2R incl...
Background The benzhydryl ether moiety is widely distributed in nature and constitutes a key structural motif in numerous molecules of significant biological potential and of prospective clinical uses. Solvent-free and cost-effective facile synthesis of symmetrical bis(benzhydryl)ethers is, thus...
The kinetics of benzoylation of substituted phenols with benzoyl chloride in the presence of pyridine N-oxide-triethylamine was analyzed with regard to previously reported data on benzoylation, phosphorylation, and sulfonylation of phenols and carboxylic acids. A common mechanism of the synergis...
The nucleophilic reactivity of amines of the norbornane, norbornene, and adamantane series toward ptoluenesulfonyl chloride and diphenyl chlorophosphate in acetonitrile at 25°C is determined mainly by the steric factor. Parameters characterizing spatial accessibility of the reaction center in t...
A procedure for the determination of arsenic by batch hydride generation atomic absorption spectrometry (HG AAS) in commercial samples of injectable drugs, containing high concentrations of Sb(V), is described. The procedure is based on the complexing effect for Sb of citric, oxalic and acetic a...
A polyclonal antiserum to pentachlorothiophenol-acetic acid-KLH was generated in sheep and assessed by solid phase ELISA. The assessment procedure included use of double checkerboard analysis in the absence and in the presence of analyte loads, estimation of cross reactivities of chlorophenol pe...
Background L-(+)-tartaric acid (L-TA) is an important organic acid, which is produced from the cream of tartar or stereospecific hydrolysis of the cis-epoxysuccinate. The former method is limited by the availability of raw material and the latter is dependent on the petrochemical material. Thus,...
Voltammetry, electrochemical quartz crystal microgravimetry (EQCM) and electrochemical impedance spectroscopy (EIS) were applied to study kinetics of cathodic processes occurring in acidic Sn(II) gluconate solutions containing an excess of sulphate. Simulations based on the material balance equa...
During the biosynthetic processing of 2-keto-l-gulonic acid (2-KLG) from 2,5-diketo-d-gluconic acid (2,5-DKG) by Corynebacterium sp., 2-keto-d-glutonic acid (2-KDG) is produced as a byproduct. These organic acids have been analyzed by high-performance liquid chromatography (HPLC) on an Aminex HP...
The oxidation of tartaric acid by hydroxyl radicals, produced by gamma-irradiation of aqueous solutions of tartaric acid, was shown to generate dihydroxyfumaric acid. To confirm the importance of this oxidative degradation pathway in wine oxidation, dihydroxyfumaric acid was itself reacted with ...
Vielseitige Salze: Bei der Kondensation wasserlöslicher DHF‐Salze unter Bildung des threo‐Diastereomers von Pentulosonsäure hängt der Reaktionsweg vom verwendeten Metallsalz ab. In dieser Umwandlung zeigen sich die unterschiedlichen Rollen von DHF als Nucleophil (Synthon für das α‐Hydroxyac...
Two novel cocrystals of the N(7)—H tautomeric form of N6‐benzoyladenine (BA), namely N6‐benzoyladenine–3‐hydroxypyridinium‐2‐carboxylate (3HPA) (1/1), C12H9N5O·C6H5NO3, (I), and N6‐benzoyladenine–DL‐tartaric acid (TA) (1/1), C12H9N5O·C4H6O6, (II), are reported. In both cocrystals, th...
DL-tartaric acid was used as a template for the formation of silica nanotubes and spheres by the sol-gel method from tetraethylorthosilicate (TEOS) as silica source. The reactions were carried out in ethanol/water mixtures in the presence of aqueous ammonia, between 0°C and 75°C, using both st...
Solubility and metastable zone width (MSZW) of DL‐tartaric acid (DL‐TA) in aqueous solution have been determined. Solubility of DL‐TA was measured in the temperature range from 0 to 50 °C at atmospheric pressure by means of the conventional polythermal method using Turbidity Monitoring Techn...
Citrus plants are generally believed to possess few or even no root hair whose function is to uptake nutrient and water from soils. This study compared the development of root hair of a citrus rootstock, Poncirus trifoliata, in four types of cultures or treated with 3-indolebutyric acid and ethe...
Inflammation is associated with oxidative stress and altered cellular calcium homeostasis. Our earlier studies have shown that, increased phosphatidic acid (PA) formation occurred in enterocyte mitochondria when exposed to superoxide, divalent metal ions or polyamines resulting in altered lipid ...
Di(2,4-dichlorobenzoyl) peroxide (DCBP), classified as a diacyl peroxide, is commonly used in silicone rubber manufacturing as a crosslinking agent, vulcanizing agent, and polymerization initiator. However, its reactivity or incompatibility may negatively affect safety requirements and concerns ...
Disasters caused by organic peroxides, such as di(2,4-dichlorobenzoyl) peroxide (DCBP), are mainly attributed to the presence of unstable oxygen atom bonds. In this study, DCBP was investigated through differential scanning calorimetry and thermal activity monitor III, which yielded thermokineti...
Tetraphenylantimony phenoxyacetate (I) was synthesized by reacting pentaphenylantimony with phenoxyacetic acid (at a molar ratio of 1 : 1) in toluene. Tetraphenylantimony ethylmalonate (II) was synthesized from triphenylantimony and malonic ether in the presence of hydrogen peroxide (1 : 1 : 1) ...
Vapor-liquid equilibrium (VLE) data for binary mixtures of CO 2 with homologous esters of diethyl methylmalonate, diethyl ethylmalonate, and diethyl n-butylmalonate at 308.2, 318.2, and 328.2K, respectively, over the pressure range 1.4-8.4MPa were measured using a semi-flow apparatus. Ne...
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