The effect of forest management practices on carbon quality is poorly documented. To assess changes in the and stability soil organic (SOC) a temperate upon human activities, we investigated from forests (i) developed following natural regeneration after clearcutting 20 40 years ago, (ii) afforestation an abandoned crop area ago (iii) where regular clear-cut (with wood residues input) was condu...

A highly sensitive infrared (IR) detector requires a large absorption area and a low thermal conductance to maximize the temperature change and signal induced by the incident IR radiation. For the floating membrane of a microsensor, it is difficult to form a large area with suitable front-side etching windows at the same time. A new idea of improving complementary metal-oxide-semiconductor (CMO...

Various sulfonylurea derivatives are widely used to treat some types of diabetes. Although thousands of different compounds have been shown to possess some hypoglycemic activity (1), only a few are used therapeutically. The dose required to achieve an effective plasma concentration of sulfonylurea varies from person to person and even from time to time in the same person (2, 3). Some of the pro...

An analytical platform coupling asymmetric flow field-flow fractionation (AF(4)) with multiangle light scattering (MALS), dynamic light scattering (DLS), and inductively coupled plasma mass spectrometry (ICPMS) was established and used for separation and quantitative determination of size and mass concentration of nanoparticles (NPs) in aqueous suspension. Mixtures of three polystyrene (PS) NPs...

We present results related to the fabrication and the proof of concept of a novel and highly sensitive mechano-optical sensor for hydrogen gas, based on microcantilevers, supplied with a selective gas absorption layer, suspended above a Si3N4 grated waveguide (GWG). The presence of a dielectric object, in this case a suspended cantilever, in the evanescent field region of the GWG may lead to th...

An inductively coupled plasma mass spectrometer (ICP-MS) was used as an ion chromatographic detector for the speciation of iodine and bromine. Gradient elution using NH4NO3 at pH 10 allowed the chromatographic separation of ionic iodine (I- and IO3-) and bromine (Br- and BrO3-) species in less than 8 min. Effluents from the ion-exchange column were delivered to the nebulization system of ICP-MS...