... be an advantage in deploying monitoring techniques that require minimal power (e.g. car battery, solar cell) and are capable of measuring air quality at a distance from the place of deployment. In the autumn of 2008, a trial of DOAS (Differential Optical Absorption Spectroscopy) was undertaken in northern Alberta...

...-ray absorption spectroscopy (XAS) to determine the arrangement of atoms around iron to understand why gel properties depend critically on the way in which the mixtures are formed and handled. Independent of preparation method, XAS studies showed that iron was coordinated to six oxygen atoms. Oxygen...