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8 Newest Publications about the topic spe systems

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Quantum emitters in two dimensions

13-Oct-2017 | Igor Aharonovich; Milos Toth, Science , 2017

Integrated circuits that process information encoded in individual quantized states of the electromagnetic field are poised to revolutionize information processing, communications, and sensing technologies. An emerging class of such quantum technologies is based on solid-state, on-demand ...

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Achievement of Prolonged Oxygen Detection in Room-Temperature Ionic Liquids on Mechanically Polished Platinum Screen-Printed Electrodes

26-Apr-2016 | Junqiao Lee; Damien W. M. Arrigan; Debbie S. Silvester, Analytical Chemistry, 2016

The demonstration of prolonged amperometric detection of oxygen in room-temperature ionic liquids (RTILs) was achieved by the use of mechanical polishing to activate platinum screen-printed electrodes (Pt-SPEs). The RTILs studied were 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ...

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Quantitative analysis of cortisol and 6β‐hydroxycortisol in urine by fully automated SPE and ultra‐performance LC coupled with electrospray and atmospheric pressure chemical ionization (ESCi)‐TOF‐MS

15-Dec-2012 | Lotte M. Lang, Petur W. Dalsgaard, Kristian Linnet, Journal of Separation Science, 2012

An ultra‐performance LC TOF MS method for quantitative analysis of cortisol and 6β‐hydroxycortisol in urine was developed. The method was used for determination of the ratio between 6β‐hydroxycortisol and cortisol in urine received from autopsy cases and living persons as a measure of cytochrome ...

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Temperature dependence of the conductivity of plasticized poly(vinyl chloride)-low molecular weight liquid 50% epoxidized natural rubber solid polymer electrolyte

07-Feb-2012 | T. K. Lee, S. Afiqah, A. Ahmad, H. M. Dahlan, M. Y. A. Rahman, Journal of Solid State Electrochemistry, 2012

Characterizations were carried out to study on a new plasticized solid polymer electrolyte that was composed of blends of poly(vinyl chloride) (PVC), liquid 50% epoxidized natural rubber (LENR50), ethylene carbonate, and polypropylene carbonate. This freestanding solid polymer electrolyte (SPE) ...

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Effect of silicone dioxide and poly(ethylene glycol) on the conductivity and relaxation dynamics of poly(ethylene oxide)–silver triflate solid polymer electrolyte

16-Jan-2012 | Gondaliya, Nirali; Kanchan, D. K.; Sharma, Poonam; Joge, Prajakta, Journal of Applied Polymer Science, 2012

Abstract The conducting and relaxation dynamics of Ag+ ions in poly(ethylene oxide) (PEO)–silver triflate (AgCF3SO3) solid polymer electrolytes (SPEs) containing nanosize SiO2 filler and poly(ethylene glycol) (PEG) as a plasticizer were studied in the frequency range 10 Hz to 10 MHz and in the ...

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Selective separation of some ecotoxic transition metal ions from aqueous solutions using immobilized macrocyclic material containing solid phase extraction system

27-Aug-2011 | Central European Journal of Chemistry, 2011

Abstract A simple flow-based method was developed for the simultaneous separation of certain transition metal ions (Co, Ni, Cu, Zn, Cd) from aqueous systems, which ions show ecotoxic effects when present at elevated concentrations. A silica-gel-bonded macrocycle system, commonly known as ...

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Evaluation of stationary phases and gas chromatographic detectors for determination of amines in water

01-Nov-2010 | Jurado‐Sánchez, Beatriz; Ballesteros, Evaristo; Gallego, Mercedes, Journal of Separation Science, 2010

Abstract For the first time, a systematic overview deals with the advantages and disadvantages of several stationary phases (polar and non‐polar) and gas chromatographic detectors (flame ionization detector, nitrogen–phosphorus detector and MS) for the determination of 27 amines (aliphatic and ...

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Characterization of polyether‐poly(methyl methacrylate)‐lithium perchlorate blend electrolytes

11-Feb-2010 | Barbosa, Paula C.; Rodrigues, Luísa C.; Silva, Maria Manuela; Smith, Michael J.; Valente, Prudência B.; ..., Polymers for Advanced Technologies, 2010

Abstract Solid polymer electrolyte (SPE) systems based on interpenetrating blends of poly(ethylene oxide‐co‐propylene oxide) and poly(methyl methacrylate) host matrices, with lithium perchlorate as guest salt, were prepared. These electrolytes were presented as free‐standing films, and their ...

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