European Technical Center

Mönchengladbach, Germany

European Technical Center

Mönchengladbach, Germany
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West M.,West X ray Solutions | Flower M.,European Technical Center | Jones S.,Glass Technology Services Ltd | Jamieson S.,Bureau of Analysed Samples Ltd
Glass Technology: European Journal of Glass Science and Technology Part A | Year: 2014

Part 2 of this guide provides the glass-maker and analyst with practical advice and methodology for the chemical analysis of glass-making limestones and dolomites. XRF and ICP-OES instrumental techniques as well as conventional wet chemistry methods are described to satisfy arange of laboratory need and budgets.

Peroni D.,University of Amsterdam | Sampat A.A.S.,University of Amsterdam | van Egmond W.,NLISIS | de Koning S.,European Technical Center | And 4 more authors.
Journal of Chromatography A | Year: 2013

Comprehensive two-dimensional gas chromatography (GC×GC) suffers from the impossibility to operate both dimensions at their optimum carrier gas velocity at the same time due to the different inner diameters of the columns typically employed. The use of multiple parallel capillary columns in the second dimension (GC×multi-GC) is studied as a means to achieve simultaneous optimum-velocity operation. A programme written in Microsoft Excel® was developed to calculate the efficiency of the two dimensions in GC×multi-GC for different numbers of columns in the second dimension. With the aid of this programme the appropriate number of columns was selected. Columns with maximum repeatability were specifically manufactured to grand suitable performance, i.e. to avoid band broadening effects caused by inter-column variations. 1D-GC experiments were carried out on the columns separately and combined in parallel. The performance of the parallel column set was consistent with that of the individual columns, with over 9100plates generated (approximately 10,000plates/m). A GC×multi-GC set-up was successfully installed. Model experiments proved the possibility to operate both dimensions at their optimum linear velocity simultaneously. The suitability of the novel second dimension column format to perform multidimensional separations was also shown for a number of selected applications. © 2013 Elsevier B.V.

Peroni D.,University of Amsterdam | Vanhoutte D.,University of Amsterdam | Vilaplana F.,University of Amsterdam | Schoenmakers P.,University of Amsterdam | And 3 more authors.
Analytica Chimica Acta | Year: 2012

Hydrophobic macroporous polymer monoliths are shown to be interesting materials for the construction of "selective solvent gates" With the appropriate surface chemistry and porous properties the monoliths can be made permeable only for apolar organic solvents and not for water. Different poly(butyl methacrylate-co-ethylene dimethacrylate) (BMA-EDMA) and poly(styrene-co-divinylbenzene) (PS-DVB) monoliths prepared with tailored chemistries and porosities were evaluated for this purpose. After extensive characterization, the PS-DVB monoliths were selected due to their higher hydrophobicity and their more suitable flow characteristics. BMA-EDMA monoliths are preferred for mid-polarity solvents such as ethyl acetate, for which they provide efficient separation from water. Breakthrough experiments confirmed that the pressures necessary to generate flow of organic solvents through PS-DVB monoliths were substantially lower than for water. A phase separator was constructed using the monoliths as the flow selector. This device was successfully coupled on-line with a chip-based continuous liquid-liquid-extraction (LLE) system with segmented flow. Efficient separation of different solvents was obtained across a wide range of flow rates (0.5-4.0mLmin -1) and aqueous-to-organic flow ratios (β=1-10). Good robustness and long life-time were also confirmed. The suitability of the device to perform simple, cheap, and reliable phase separation in a continuous LLE system prior to gas-chromatographic analysis was proven for some selected real-life applications. © 2012 Elsevier B.V.

Beckett M.A.,Bangor University | Horton P.N.,University of Southampton | Hursthouse M.B.,University of Southampton | Timmis J.L.,Bangor University | Sukumar Varma K.,European Technical Center
Inorganica Chimica Acta | Year: 2012

[Ph 4P][B 5O 6(OH) 4]·1. 5H 2O (1) was obtained as colourless crystals in high yield from a MeOH/H 2O solution of B(OH) 3 and [PPh 4][OH] (5:1). A single-crystal X-ray study confirmed that the solid-state structure was comprised of supramolecular networks of interconnected anions (H-bonds) and cations (phenyl embraces). Crystals are triclinic, P1̄ with a = 13.3174(3) , b = 13.3180(3) , c = 16.2055(4) , α = 91.1950(10)°, β = 91.180(2)°, γ = 105.456(2)°, T = 120(2) K, V = 2768.66(11) 3 and Z = 4. TGA/DSC analysis showed that 1 thermally decomposed in air at 800 °C to 2.5B 2O 3, via a low temperature dehydration step to a condensed pentaborate, [PPh 4][B 5O 8]. © 2011 Elsevier B.V. All rights reserved.

Beckett M.A.,Bangor University | Horton P.N.,University of Southampton | Hursthouse M.B.,University of Southampton | Timmis J.L.,Bangor University | Varma K.S.,European Technical Center
Collection of Czechoslovak Chemical Communications | Year: 2010

[C6H5CH2NH3][B 5O6(OH)4] was obtained as colourless crystals in high yield from a MeOH/H2O (1:1) solution of benzylamine and boric acid (1:5). A single-crystal X-ray study confirmed that the solid-state structure was comprised of a supramolecular H-bonded pentaborate anion lattice, templated by the benzylammonium cations which occupy positions within the lattice cavities. Each pentaborate anion formed 4 H-bonds to 4 neighbouring pentaborate anions at α,α,α,β acceptor sites. Additionally, each cation H-bonds to 3 pentaborate anions. Crystals were monoclinic, P21/c, with a = 9.3511(2) Å, b = 14.5157(4) Å, c = 10.4670(2) Å, β = 90.778(2)°, T = 120 K, V = 1420.64(6) Å3, and Z = 4. TGA/DSC analysis showed that [C 6H5CH2NH3][B5O 6(OH)4] thermally decomposed in air at 800 °C to 2.5B2O3, via a low-temperature (200-250 °C) dehydration step to a condensed pentaborate. © 2010 Institute of Organic Chemistry and Biochemistry.

Beckett M.A.,Bangor University | Horton P.N.,University of Southampton | Hursthouse M.B.,University of Southampton | Timmis J.L.,Bangor University | Varma K.S.,European Technical Center
Dalton Transactions | Year: 2012

The synthesis and characterization of a series of cyclo-alkylammonium pentaborate salts {[cyclo-C nH 2n-1NR 3][B 5O 6(OH) 4] (R = H, n = 3, 5-7 (1-4); R = Me, n = 6 (5))} are reported. Compounds 1, 2 and 5 have been further characterized by single-crystal XRD studies. Attempted recrystallization of 3 and 4 yielded small crops of the unexpected heptaborate salts, [cyclo-C 6H 11NH 3] 2[B 7O 9(OH) 5]·3H 2O·B(OH) 3 (6) and [cyclo-C 7H 13NH 3] 2[B 7O 9(OH) 5]·2H 2O·2B(OH) 3 (7) which were also characterized crystallographically. All compounds show extensive supramolecular H-bonded anionic lattices templated by the cations. H-bond interactions are described in detail. TGA-DSC analysis of the pentaborates 1-5 showed that they thermally decomposed in air at 800 °C to 2.5B 2O 3, in a 2 step process involving dehydration (<250 °C) and oxidative decomposition (250-600 °C). BET analysis of materials derived from the pentaborates had internal porosities of <1 m 2 g -1. © 2012 The Royal Society of Chemistry.

News Article | December 13, 2016

The Paris-Dakar Rally is one of the toughest tests in motorsport, pitting competitors against blazing heat and shifting sand dunes. Simply reaching the finish line is an impressive feat and cars that have completed the grueling race are treated with a certain reverence. At Nissan, that reverence has led to a full rebuild of the Patrol Fanta Limon, which won diesel class at the 1987 Paris-Dakar. Although it's not particularly well known outside Nissan, the Patrol Fanta Limon No.211 was the first diesel to finish in the top 10 at Paris-Dakar. Two vehicles started the race, but the support truck for one of the cars broke down after the first stage, forcing an early retirement. There was no such trouble for the car you see here. It survived the full 13,000 km (8,078 mi) route – which started in Europe and ran through Algeria, Niger, Mali and Mauritania on the way to Dakar, capital of Senegal – before being offered to the Salvador Claret, a car collection and museum in Spain. The car then sat idle in the museum for almost 30 years, before an engineer at Nissan's European Technical Center (NTCE) spotted photos of the car on a forum, and arranged its return. "The engine was in terrible condition," says Juan Villegas, part of the team tasked with the restoration. Although the 146 hp (109 kW) diesel four-cylinder was tough enough to survive the Sahara, three decades of neglect had led to heavy corrosion. The front axle was also in bad shape, and the electrics had been attacked by a particularly ravenous family of rats. Having established its condition, the team at Nissan set about restoring the Patrol on weekends and free nights. Parts were sourced from around Europe, and original drawings and service manuals were used during the rebuild. The project was completed in November, at which point it was set free on the dunes of the Sahara. "That was a proud moment," says Pedro Diaz Illan, the only member of the 1987 Patrol Fanta Limon team remaining at NTCE. "Our brains, hearts and souls have gone into this project and it has not been easy. But to see the car in the desert again was just fantastic." The restoration was funded by Nissan and, although there are no details about where it will be displayed, you can rest assured it will be kept away from ravenous Spanish rats from now on. You can check out the car's return to Africa in the video below.

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