Concept

Buffer solution

Related publications (245)

Impact of virus aggregation on inactivation by peracetic acid and implications for other disinfectants

Tamar Kohn, Paolo Perona, Benoît Crouzy, Krista Rule Wigginton, Michael Jon Mattle, Moritz Brennecke

Viruses in wastewater and natural environments are often present as aggregates. The disinfectant dose required for their inactivation, however, is typically determined with dispersed viruses. This study investigates how aggregation affects virus inactivati ...

2011

Planar micro-direct methanol fuel cell prototyped by rapid powder blasting

Martinus Gijs, Meng Shen, Ludovic Dovat

We present a planar micro-direct methanol fuel cell (μ−DMFC) fabricated by rapid prototyping powder blasting technology. Using an elastomeric mask, we pattern two parallel microfluidic channels in glass. The anode and cathode of the fuel cell are formed by ...

Elsevier2011

Transmission of Alkali Aerosols through Sampling Systems

Christian Ludwig, Tilman J. Schildhauer

In biomass gasification, particles such as condensed alkali salts pose a threat on equipment. Due to high loads of condensable tars in the gases, sampling of these particles to liquids and subsequent analysis of the liquid is frequently the method of choic ...

2011

A simple fluorescence assay for the detection of fluoride in water at neutral pH

Kay Severin, Sébastien Rochat

A simple assay for the detection of fluoride in water by fluorescence spectroscopy was developed. The assay is based on commercially available reagents and allows sensing of fluoride in the low millimolar concentration range with high selectivity over othe ...

2011

A Fluorescent Sensor for Pyrophosphate Based on a Pd(II) Complex

Rosario Scopelliti, Kay Severin, Jie Gao

A mixture of the Pd(II) complex [Pd(NO3)2(bipy)] (bipy = 2,2-bipyridine) and the fluorescent dye Methylcalcein blue (MCB) constitutes a chemosensing ensemble which can be used for the detection of pyrophosphate (PPi) by fluorescence spectroscopy. The senso ...

Royal Society of Chemistry2010

Turn-Off-and-On: Chemosensing Ensembles for Sensing Chloride in Water by Fluorescence Spectroscopy

Kay Severin, Kurt Schenk

The recognition and sensing of aqueous chloride by synthetic receptors is a challenging task. Herein we apply the chemosensing ensemble methodology to optically detect chloride in water at near physiological pH. Variants based on two closely related recept ...

2010

Direct and mediated electrochemical oxidation of ammonia on boron-doped diamond electrode

Christos Comninellis, Agnieszka Kapalka

Direct (non-mediated) electrochemical oxidation of ammonia on boron-doped diamond (BDD) electrode proceeds mainly at high pH (>8) via free ammonia (NH3) oxidation. To enhance ammonia oxidation on BDD at low pH (

Elsevier2010

Biological reduction of chlorinated solvents: Batch-scale geochemical modeling

David Andrew Barry, Clare Robinson

Simulation of biodegradation of chlorinated solvents in dense non-aqueous phase liquid (DNAPL) source zones requires a model that accounts for the complexity of processes involved and that is consistent with available laboratory studies. This paper describ ...

Elsevier2010

Cross-Reactive Sensor Arrays for the Detection of Peptides in Aqueous Solution by Fluorescence Spectroscopy

Kay Severin, Sébastien Rochat, Friederike Gundula Marie Zaubitzer, Jie Gao

A simple but powerful method for the sensing of peptides in aqueous solution has been developed. The transition-metal complexes [PdCl2(en)], [{RhCl2Cp*}2], and [{RuCl2(p-cymene)} 2] were combined with six different fluorescent dyes to build a cross-reactiv ...

2010

Chemosensors Based on Metal-Dye Complexes for Bioanalytes

Friederike Gundula Marie Zaubitzer

Multicomponent chemosensors were prepared by mixing the rhodium(III) complex [(η5-C5Me5)RhCl 2]2, nickel(II) chloride and/or copper(II) chloride with commercially available dyes in buffered aqueous solution. The sensors were used to detect various biomolec ...

EPFL2010

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