9 results match your criteria: "Industrial Chemistry Centre[Affiliation]"
Talanta
May 2010
Royal Scientific Society, Industrial Chemistry Centre, Amman, Jordan.
The viscosity index (VI) and the base number (BN) of motor oils are the most important parameters to be measured in order to assess their performance and service time. Both parameters were simply obtained for virgin and recycled motor oil samples using multivariate calibration based on the FTIR data. Analysis showed that the PLS-1 has outperformed CLS and PCR for the oil parameters prediction.
View Article and Find Full Text PDFChemosphere
February 2010
Industrial Chemistry Centre, Royal Scientific Society, P.O. Box 1438, Al-Jubaiha, Amman 11941, Jordan.
Organochlorine pesticide (OCP) residues in 519 samples; comprising eggs, chicken and meat (lamb and beef), collected from Jordan were determined. All samples were analyzed for their residual contents of aldrin, dichlorodiphenyltrichloroethane and metabolites (DDTs), dieldrin, endosulfan isomers, endrin, hexachlorocyclohexane isomers (HCHs), heptachlor, heptachlor epoxide and hexachlorobenzene (HCB). The samples were Soxhlet extracted for 8h in 250mL petroleum ether.
View Article and Find Full Text PDFJ Hazard Mater
April 2010
Industrial Chemistry Centre, Royal Scientific Society, P.O. Box 1438, Amman, Jordan.
A potential usefulness of raw date pits as an inexpensive solid adsorbent for methylene blue (MB), copper ion (Cu(2+)), and cadmium ion (Cd(2+)) has been demonstrated in this work. This work was conducted to provide fundamental information from the study of equilibrium adsorption isotherms and to investigate the adsorption mechanisms in the adsorption of MB, Cu(2+), and Cd(2+) onto raw date pits. The fit of two models, namely Langmuir and Freundlich models, to experimental data obtained from the adsorption isotherms was checked.
View Article and Find Full Text PDFChemosphere
October 2009
Industrial Chemistry Centre, Royal Scientific Society, P.O. Box 1438, Al-Jubaiha, Amman 11941, Jordan.
The use of aldrin, dieldrin, endrin, heptachlor and hexachlorobenzene (HCB) has been banned in Jordan officially in 1981, and of dichlorodiphenyltrichloroethane (DDT) in 1995. However, residues of such compounds can still be found in the environment and in foodstuffs. Dairy products are an important exposure route for organochlorine pesticides (OCPs) to humans.
View Article and Find Full Text PDFJ Environ Manage
August 2009
Royal Scientific Society, Industrial Chemistry Centre, P.O. Box: 1438, Al-Jubaiha 11941, Jordan.
The investigations into structural changes which occur during adsorbent modification and the adsorption mechanisms are essential for an effective design of adsorption systems. Manganese oxides were impregnated onto diatomite to form the type known as delta-birnessite. Initial investigations established the effectiveness of manganese oxides-modified diatomite (MOMD) to remove basic and reactive dyes from aqueous solution.
View Article and Find Full Text PDFJ Hazard Mater
June 2009
Industrial Chemistry Centre, Royal Scientific Society, Amman, Jordan.
The effect of initial concentration, particle size, mass of the adsorbent, pH and agitation speed on adsorption behaviour of methylene blue (MB) onto Jordanian diatomite has been investigated. The maximum adsorption capacity, q, increased from 75 to 105 mg/g when pH of the dye solution increased from 4 to 11. It is clear that the ionisable charge sites on the diatomite surface increased when pH increased from 4 to 11.
View Article and Find Full Text PDFTalanta
September 2008
Royal Scientific Society, Industrial Chemistry Centre, P.O. Box 1438, Al-Jubiha, Amman 11941, Jordan.
In this paper, an attempt has been made to develop a feasible procedure for the prediction of quality parameters of motor gasoline and to discriminate between the different adulterated motor gasoline samples using density values, distillation temperatures and Fourier transform infrared (FTIR) analyses along with multivariate calibrations without the need for using chromatographic separation or other expensive instruments such as an octane number analyser. Ten blend mixtures of regular and super motor gasoline were prepared in order to study density, distillation temperatures and FTIR spectra characteristics for each blend. Distillation temperatures for the pure and blend mixtures of regular and super motor gasoline at initial boiling point (IBP) to final boling point (FBP) at 5%Vol.
View Article and Find Full Text PDFJ Environ Manage
January 2009
Royal Scientific Society, Industrial Chemistry Centre, P.O. Box 1438, Amman 11941, Jordan.
As a result of the changes that occur during their use, used engine oils tend to differ in chemical and physical composition from a virgin oil. In general recycled oils have: much higher water and sediment levels than virgin oil; relatively higher concentrations of organic compounds (oxidation products); and relatively higher levels of metals such as Fe, Cd, Cr, Pb, etc. Therefore, the aim of this work was to investigate, assess and to observe, by means of the physical and the chemical properties of the oils, atomic absorption (AA), inductive couple plasma (ICP) and Fourier transform infrared (FTIR) analyses the extent of the differences occurring between the virgin and recycled oil.
View Article and Find Full Text PDFJ Hazard Mater
July 2007
Royal Scientific Society, Industrial Chemistry Centre, P.O. Box 1438, Al-Jubaiha 11941, Jordan.
The method described here cannot fully replace the analysis of large columns by small test columns (microcolumns). The procedure, however, is suitable for speeding up the determination of adsorption parameters of dye onto the adsorbent and for speeding up the initial screening of a large adsorbent collection that can be tedious if a several adsorbents and adsorption conditions must be tested. The performance of methylene blue (MB), a basic dye, Cibacron reactive black (RB) and Cibacron reactive yellow (RY) was predicted in this way and the influence of initial dye concentration and other adsorption conditions on the adsorption behaviour were demonstrated.
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