introduction there is a growing interest in determining the concentration of various elements in food spices. in the present study, the instrumental neutron activation analysis (inaa) was employed to measure the trace elements in 11 commonly food spices consumed in tehran, iran. materials and methods the levels of k, mn, na, cl, v, br, al, and as were determined and their effects on human healt...

more than 30 mineral elements have been found with different key functions in helping plants and animals to survive and live healthy. as a direct result, they have always attracted the attention of scientists. the quest is to find some efficient analytical and quantitative procedures in this study to determine some mineral and trace elements of iranian crocus sativus l. corms. several studies h...

In this work, samples of the medicinal plants: Boldo (Peumus boldus), Castanha da Índia (Aesculus hippocastanum), Chá Verde (Camelia sinensis), Erva Cidreira (Melissa officinalis), Espinheira Santa (Maytenus ilicifolia), Guaraná (Paullinia cupana), Maracujá (Passiflora sp.), Mulungu (Erythrina velutina), Sene (Cassia angustifolia) and Valeriana (Valeriana officinalis) were evaluated BY using th...

2.1. X-ray Based Detection Systems: 11 2.2. Elements of Neutron Physics and Properties: 13 2.3. Gamma Spectroscopy Neutron Based Techniques: 14 2.3.1. Thermal Neutron Analysis (TNA): 17 2.3.2. Fast Neutron Analysis (FNA): 19 2.3.3. Pulsed Fast Neutron Analysis (PFNA): 19 2.3.4. Pulsed Fast-Thermal Neutron Analysis (PFTNA): 20 2.3.5. Associated (Alpha) Particle – Time-of-Flight Neutron Analysis ...