Zinc deficiency is causing malnutrition for nearly one third of world populations. It is especially relevant in cereal-based diets in which low amounts of mineral and protein are present. In biological systems, Zn is mainly associated with protein. Cereal grains contain the highest Zn concentration during early developmental stage. Although hordeins are the major storage proteins in the mature ...

The use of quality control samples of blood and urine into trays was done upon the basis of the micro-sampling method of Delves for rapid screening determinations of lead in blood and urine by Atomic Absorption Spectrophotometry. For lead in urine this was extended over a range of 12.66 ƒÊmol Pb 1-1 from patients under chelation therapy usually EDTA-Ca without any interference. Thirty-six urine...