BACKGROUND Phytic acid is a strong inhibitor of iron absorption from fortified foods. In adults, this inhibitory effect can be overcome by adding ascorbic acid with the iron fortificant or by using a "protected" iron compound such as NaFeEDTA. In addition, the use of NaFeEDTA as an iron fortificant has been reported to increase zinc absorption in adult women. No information is available on iron...

Previous studies showed that temperature and total organic carbon in drinking water would cause chlorine dioxide (ClO(2)) loss in a water distribution system and affect the efficiency of ClO(2) for Legionella control. However, among the various causes of ClO(2) loss in a drinking water distribution system, the loss of disinfectant due to the reaction with corrosion scales has not been studied i...

The increased interest in solar power over the last few decades has led to a constant development of existing and new types of solar cells. One type of solar cell that is making advances on the global market is copper indium gallium diselenide (CIGS) thin film solar cells. The advantage of thin film solar cells is that they require less semiconductor material than conventional silicon solar cel...

background: the purpose of this study was to evaluate the levels of zinc (zn), copper (cu), iron (fe) and zinc/ cop­per ratio in the serum of patients with cutaneous leishmaniasis in qom province, center of iran. methods: serum levels of zinc and copper were determined by flame atomic absorption spectrophotometer and serum iron concentration was measured by using an auto analyzer. the study gro...

A total of 1110 broiler cockerels were used in three experiments to determine the availability of iron and copper from various sources. A skim milk basal diet was fed in each experiment using chicks maintained in battery brooders beginning at one day of age. Four organic iron compounds (sequestered iron A' and ferric choline chloride in Experiment 1 and sequestered iron B and C in Experiment 2)...

lead, copper, cobalt, nickel, iron and zinc ions form monocitrate complexes (negative charge) in citrate solution which is absorbed on the citrate form of anion-exchange resins (citrate as counter ion) y exchange of citrate ion with citrate complexes. these are subsequently recovered from the resin by 0.5m ammonium citrate eluent at ph 2.0. under optimized conditions, quantitative recovery was ...

In individuals with similar body stores of iron, the amount of iron absorbed from a single oral dose is not proportional to the amount of iron administered. Although a greater amount of iron is absorbed as the size of the oral dose increases, the percentage or fraction of the dose that is absorbed actually decreases (1-3). In addition, the amount of iron absorbed from a given dose is dependent ...

The effect of heat treatment and alloying elements of copper and tin on the microstructure and mechanical properties of austempered ductile cast iron alloys is investigated. The austenitizing temperature of 890°C, the isothermal transformation (austempering) temperatures of 285, 335 and 375°C, and austempering times of 15, 30, 75 and 150 minutes are studied. The alloying elements of copper and ...

With the growing awareness of protecting urban environment and increasing demand for strategic materials, recycling SmCo magnets has become imperative. This paper provides a series methods regarding available hydrometallurgical technologies scrap magnets. study aimed to recover samarium (Sm), cobalt (Co), copper (Cu), iron (Fe) from acid leachate by using precipitation ion exchange. IRC748 show...

background: metal ions effect on homeostasis of alzheimer’s disease (ad) patients. the aim of this study was to assess the metal ions (iron, zinc and copper) and cbc in patients with ad in comparison with normal range. methods: the samples of study were 17 patients with ad in tehran’s aging centers in 2015, selected as an access sample. blood samples were analyzed in a pathobiology laboratory. ...