تاثير وابستگي به مرفين بر ترميم استخوان در موش صحرايي

Measurement of Iodine in Different Samples of Rice by Neutron Activation Analysis Using Epithermal Neutrons

Since Parts of Our Country are Situated in iodine deficient regions, the measurement of the element in foodstuffs is the first step in recognition and treatment of some diseases such as guatre. The measurement of some trace elements such as iodine by convention analytical methods is not practical (1). In this research, to achieve the lower detection limit, the method of neutron activation analysis was used. The presence of some elements such as aluminum, manganese, chlorine and sodium with high neutron capturing cross section of thermal neutron has the main interfering effect in iodine measurement. The epithermal neutrons were then used to reduce the interfering effect. The iodine content of the studied samples was different ,Where the North Hassani sample possesses the highest content of 493 * 187.6PPm Lenjan sample has the minimal amount of <30ppm.