Showing papers on "Compounds of zinc published in 2010"

Zinc manganese silicate containing metal particles luminescent materials and preparation methods thereof

Abstract: Zinc manganese silicate containing metal particles luminescent materials and preparation methods thereof are provided. The said luminescent materials are represented by the general formula: Zn2-xSiO4 : Mnx, My, wherein M are metals, 0.001<=x<=0.1,0.00001<=y<=0.01. The said methods include the following steps: step 1, preparing silica aerogel containing metal particles; step 2, weighing compounds of zinc source, compounds of manganese source and the silica aerogel in step 1 at stoichiometric ratio and mixing them to form mixture; step 3, sintering the mixture in step 2, then cooling and grinding to form the said luminescent materials with higher luminescent intensity. The said methods have simple steps, easy operation, low sintering temperature and low cost.

Effect of zinc and auxin foliar application on some anti-oxidant enzymes activity in corn leaf

Abstract: An experiment (under controlled condition) was implemented applying randomized complete block design in three replications and eight spraying compound treatments at the agricultural experiment center of Tehran located in Varamin region, in order to investigate the effects of zinc and auxin (IBA) foliar on some anti-oxidant activity, consisting of catalase, super oxide dismutase, peroxidase, poly phenol oxidase and auxin oxidase. Results showed that, of various compounds of zinc (Zinc Sulphate and Zn EDTA) and auxin foliar application were increased level of anti-oxidant enzymatic activities, so it seems that foliar application of zinc and auxin enhance corn tolerance against drought stress via promoting of root growth.