Catalytic tests These tests rely on the fact that haem can catalyse the breakdown of hydrogen peroxide. As the H2O2 breaks down, another substance in the reaction mixture is oxidised, producing a colour change. It is important to note that a positive test does not mean that a given stain is blood, let alone that it is human blood, as various enzymes and certain metals can also give positive res...

Assessment of the reduction methods used to develop chemical schemes: building of a new chemical scheme for VOC oxidation suited to three-dimensional multiscale HOx-NOx-VOC chemistry simulations S. Szopa, B. Aumont, and S. Madronich Laboratoire Interuniversitaire des Systèmes Atmosphériques UMR CNRS 7583, Université Paris 7 et Paris 12, 94010 Créteil Cedex, France National Center for Atmospheri...

The object of this little book is to provide the student with an inexpensive and reliable pocket guide to the simpler chemical and micro-biological manipulations required in modern diagnosis. We think it fulfils this object. The technique of the various methods of testing pathological urine and other diseased fluids is described clearly and concisely, yet with sufficient detail to enable the re...

selecting within local pomegranate accessions is the main method used to identify new cultivars. total of 76 pomegranate accessions from hatay, turkey, were collected and their morpho-pomological and chemical characteristics were determined. the results showed that there was significant diversity among the accessions in terms of fruit quality parameters. several accessions were notable for thei...