This report discusses the easy and cheap preparation of SnCl2 exchanged Brønsted acidic Amberlyst-15 ion exchange resin prepared by ion exchange of an aqueous SnCl2 solution at room temperature. The prepared materials were tested in the conversion of sugars, being glucose, fructose and saccharose to …

It can be concluded that the HBM4EU serum sample preparation method is suitable for Effect-Directed Analysis. The method allows a recovery of all bioactive compounds of interest from serum in the EDA products, with little loss of compounds: bioassay spectra and chromatograms. Nevertheless, the HBM4EU …

We developed a dedicated Atomic Force Microscopy set-up in a hermetically closed environment, coupled with a Galvanostat/Potentiostat which will be able to perform in-situ and operando measurements at the cathode-electrolyte and anode-electrolyte interface to monitor the interphase processes. The setup …

It is widely understood that biofouling is an obstacle to water treatment processes, therefore, tailored cleaning strategies are needed to increase removal efficiency. This research inquired into the swelling behaviour at the equilibrium states of target biofilm models made from alginate -like exopolymers …

Total organic carbon (TOC) is often found in natural water sources, and also may come from (chemical) water treatment processes or from sewage. It may react with disinfectants to produce DBPs (disinfection by-products), which are harmful to water systems and public health. Besides, in industrial systems …

De recente grote hoeveelheid CO2 uitstoot heeft ervoor gezorgd dat de pH van de oceaan langzaamaan daalt. CO2 reageert met water en vormt zo bicarbonaat-, carbonaat- en waterstof-ionen. Kleine veranderingen in de pH van de oceaan kan grote gevolgen veroorzaken voor het klimaat. Om de gevolgen voor het …

A Quad Focus GridPix Gaseous Tracking Detector is under construction, to allow calibration and test beam measurements to validate the working principles of the (quad) GridPix detectors while using a focused electric field. The development is well on its way: both measurements should be able to be conducted …

Waterborne diseases are posing a constant threat for people. In developing countries there is a lack of microbiologically safe drinking water and in the developed countries there are occasional waterborne disease outbreaks. These diseases are caused by bacteria or parasites which can be found in various …

In het kader van de afstudeerstage voor de opleiding Technische Natuurkunde aan de Haagse Hogeschool is er een opdracht uitgevoerd bij de onderzoeksgroep Charged Particle Optics aan de TU Delft. De opdracht is een onderdeel van het mini-NAIS project en beslaat het ontwerpen, opbouwen en testen van de …

A new gravitation wave observatory is being built in Japan. This facility is a big Michelson interferometer where the mirrors and sensors will be made cryogenic down to 4 K. The problem is that: the heat cannot be transported out of the mirror by its surroundings because the whole system is in an ultra-high …