Showing papers in "Microchemical Journal in 2009"

TL;DR: In this paper, the authors used high-performance liquid chromatographic methods to identify and quantify the organic acids, sugars, phenolic compositions and antioxidant capacities of orange juice and orange wine obtained from the cv. Kozan of Turkey.

TL;DR: In this article, the average concentration values of the metals Cd, Cu, Ni, Pb and Zn were found to be 5,± 1, 52,± 18, 23,± 6, 104,± 29 and 116,± 35,mg kg -1 respectively, which were generally lower than the values cited in literature.

TL;DR: In this article, a new combination among time, temperature, alkali and alcohol is described for the spectrophotometric determination of small concentrations of phenolics in methanol extracts from plant.

TL;DR: In this article, a brief overview of chemometric techniques based on factorial designs and response surface methodologies used in the optimization of electroanalytical methods is given for stripping analyses and flow injection systems with amperometric detection.

TL;DR: In this paper, the authors report the spatial distribution pattern and degree of heavy metal pollution (Cd, Cr, Cu, Ni, Pb, Mn, Be, Co, Zn and U) in 169 urban road dust samples from urban area of Urumqi city.

TL;DR: The results showed that heavy metal content was lower in Pakistani phosphate than that in imported rock and were below the safe limits with the exception of lead whose concentration was found to be higher in local phosphate deposits than that of imported rock samples as mentioned in this paper.

TL;DR: In this paper, the quality of 38 honey samples from Luso region (Portugal) was evaluated and the relation between Eucalyptus pollen and chemical properties of honey was studied.

TL;DR: The complexation between oppositely charged macromolecules is exploited to develop a safe and efficient method of preparation of chitosan bead formulations for use as drug delivery systems.

TL;DR: In this paper, a comparative study was developed on the total fatty acids composition of twelve wild edible mushroom species (Suillus bellini, Suillus luteus and Suillus granulatus, Hygrophorus agathosmus, Russula cyanoxantha, Boletus edulis, Tricholoma equestre, Fistulina hepatica, Cantharellus cibarius, Amanita caesarea and Hydnum rufescens).

TL;DR: In this paper, the potential of the Fe 3 O 4, Mn 3 o 4, and MnFe 2 o 4 nanophases for the removal of arsenic(III) and (V) from aqueous solutions was investigated using the batch technique.

TL;DR: In this paper, the authors used gas chromatography coupled with a flame ionization detector (GC/FID) and HPLC/RID for the analysis of the nutritional composition of wild mushrooms.

TL;DR: In this article, the phytochemical characterization of purslane (Portulaca oleracea L) and study of its antioxidant activity was conducted. But the results were limited to the analysis of the leaves of the plant.

TL;DR: In this paper, a procedure for preconcentration of cobalt using dispersive liquid-liquid microextraction (DLLME) with the reagent Br-TAO as complexing reagent was developed.

TL;DR: In this article, a novel amperometric sensor based on electropolymerized molecularly imprinted polymer (MIP) for triclosan detection is reported, which provides an efficient way for eliminating interferences from compounds with similar structures to that of triclonus.

TL;DR: The volatile compounds of wild gilthead sea bream (Sparus aurata) were analyzed by sensory and instrumental analyses as discussed by the authors, where simultaneous distillation and extraction with dichloromethane were used for extraction of volatile components.

TL;DR: In this paper, the authors investigated the distribution pattern of persistent organic pollutants (POPs) such as PAHs and PCBs in fly ash generated from five thermal power stations from different parts of India.

TL;DR: In this paper, sea surface microlayer (SML) and sea water samples (SSW) collected in the Gerlache Inlet Sea (Antarctica) were analysed for n-alkanes and polycyclic aromatic hydrocarbons (PAHs).

TL;DR: In this article, a cloud point extraction (CPE) system has been proposed for determination of species de chromium in the natural water samples, Cr(III) and Cr(VI).

TL;DR: In this article, a modified BCR sequential extraction procedure was used as evaluation method when assessing the potential mobility of heavy metal in municipal solid waste (MSW) from Tianziling landfill site.

TL;DR: In this article, the authors investigated the distribution of water extractable Sb(III) and Sb (V) species along a Massachusetts highway and found that Sb was the dominant species present in both surface and soil core samples, and was mostly confined to the top 20 cm layer of soil.

TL;DR: In this paper, the performance of five commercially available SPME fibres: 65-μm polydimethylsiloxane/divinylbenzene, PDMS/DVB; 100 -μm PDMS; 85 -m polyacrylate, PA; 50/30μm DVB/CAR/PDMS (StableFlex); and 75μm carboxen/polydimethylsoxane, CAR/PDM; was evaluated and compared.

TL;DR: In this paper, two sequential extraction methods (five stages Tessier method and three steps BCR method) were used to determine the binding forms of the metals in aquaculture shrimp sludge.

TL;DR: A new ionic imprinted polymer (IIP) for Ni(II) recognition/pre-concentration was prepared via precipitation polymerization using 2-(diethylamino) ethyl methacrylate (DEM) and divinylbenzene (DVB) as a crosslinking agent in the presence of nickel and 5-vynil-8-hydroxyquinoline (5-VHQ) as bi-functionalized ligand as mentioned in this paper.

TL;DR: In this paper, the physicochemical transformations that occur when solid materials are exchanged among them were investigated in the Terra Nova Bay region (northern Victoria Land, Antarctica), where the interactions among soil, meltwater and lakes are poorly understood with regard to the physicochemochemical transformations.

TL;DR: The most significant findings on the presence of persistent organic pollutants (POPs) in the marine ecosystem at Ross Sea are presented in this paper, where two classes of POPS were considered, namely polychlorobiphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs).

TL;DR: This paper aims to spotlight the current knowledge on different and less obvious sources of alimentary exposure to OTA, including traditional and home-made food products, highly consumed by specific groups of populations that thus might be at risk.

TL;DR: In this article, a new Cu-II-imprinted polymer, based on salen-OMe ligand 2,2′-[ethane-1,2-diylbis(nitrilo( E )methylylidene)]bis(6-allyl-4methoxyphenol) and styrene-divinylbenzene matrix, as well as its application to on-line preconcentration and flame atomic absorption determination of copper was reported.

TL;DR: The mobility, bioavailability and persistence of copper and zinc were investigated by comparing the effect of concentration and pH changes in step 2 BCR (European Community Bureau of Reference) sequential extraction procedure in shrimp aquaculture farm sludge from Selangor, Malaysia.

TL;DR: In this article, multivariate optimization was applied for the development of an ultrasound-assisted multielemental extraction procedure for analysis of bean samples by inductively coupled plasma optical emission spectrometry.

TL;DR: The elemental composition of water soluble and acid soluble size-fractionated airborne particulate matter (APM) was investigated in this article, where samples containing fine and coarse particles were subjected to an aqueous leaching to obtain information on the dissolution behaviors of ions, metal and metalloids.