Comparative study on two methods for determination of selenium in some Sudanese plants fruits and their soils
Ola Ahmed M, Elmugdad Ahmed A, Mohammed Elmukhtar A
This study was undertaken to determine selenium (Se) concentration in some Sudanese plants fruits, (Ziziphus spina Christi), (Adansonia digitata), (Balanites egyptiaca) and soil where these plants were planted from different depths (75 cm, 100 cm, and 150 cm) by using two techniques, hydride generation atomic absorption (HGAAS) and energy dispersive x-rays fluorescence (EDXRF) as well as to compare the determined amounts of Se for fruits and their soils by using two techniques. All samples were taken from a forested area called Alein forest, north of Al-obied city in west of Sudan. The results in unit (ppm) was as follows by using the two techniques mentioned respectively, first, with regard to the plants: 0.0172,, 0,0154 for ziziphus s, 0.0346, 0,0186 for Adansonia d, and 0.0348, 0.0170 for Balanites e,. As for the soil depths (75 - 100 – 150 cm) results were as follows: Between 0.163 – 0.195 by (HGAAS) and between 0.150 - 0.190 by (EDXRF).From results it was found that; Se concentration ranged as follows: Adansonia d, > Balanites e, > ziziphus s. From results, for plants and for different soil depths it was observed that (HGAAS) measured highest Se concentration with high efficiency, then (EDXRF). From results, it was found that depth of 150 cm contains high Se concentration > depth 75 cm > depth 100 cm. It was found that soils of Ziziphus s hve a higher Se concentration > Balanites e soils > Adansonia d soils, it was cleared that: soil contain high Se concentration than plants.
Ola Ahmed M, Elmugdad Ahmed A, Mohammed Elmukhtar A. Comparative study on two methods for determination of selenium in some Sudanese plants fruits and their soils. International Journal of Multidisciplinary Research and Development, Volume 6, Issue 12, 2019, Pages 01-06