ICP-MS was used for the analytical determination of trace elements
in both commercially available white maize flour and the maize grown at University of Agriculture, Faisalabad, Pakistan.
are also involved in key metabolic events such as respiration, photosynthesis, and fixation and assimilation of some major nutrients (Kabata-Pendias and Pendias, 1991).
Some trace elements
have potential to expand the lattice parameters of the synthetic apatite crystal cell along the a-axis such as ferrous (Fe2+), ferric (Fe3+), strontium (Sr2+) and zinc ions (Zn2+) (molar fraction >10%) whereas it shrinks with silicate (SiO44-), carbonate (CO32-), magnesium (Mg2+), Zn2+ (molar fraction < 10%) and titanium ions (Ti4+).
Venkatesh I, Jost W: Trace Elements
in Human Clinical Specimens: Evaluation of Literature Data to Identify Reference Values.
has dual role in the human body, some of the trace elements
are required for certain physiological functions and their excess of deficiency can cause health problem .
in coal, environmental and health significance, Biological Trace Element
Research, 67, 197-204.
Reference to chemical analysis, the ingredients in tea are very complicated which may be due to soil chemistry or processing with tanning substances like flavonols, alkaloids, protein, amino acids, enzymes, aroma, vitamins and trace elements
Determination of trace elements
in biological samples by inductively coupled plasma mass spectrometry with tetramethylammonium hydroxide solubilization at room temperature.
At the same time, there are but few investigations on the enrichment and distribution characteristics of trace elements
and REEs in Chinese oil shale.
Serum was shifted into 1ml nitric acid treated aliquot (for trace elements
determination) and the other separated serum was collected in a separate aliquot for ALT albumin and sugar levels.
: Many trace elements
exhibit a systematic relationship with Al2O3 and grain size.
primarily come from source rocks due to weathering and, in moderate contamination levels, are usually harmless to organisms; however, when their concentration increases they become considerably harmful to human and other living organisms.