This study was done to know the changes in the levels of potassium in the vitreous humour of eye with increasing time since death by flame photometry method. 200 cases brought to the mortuary of Govt. Medical College, Patiala, formed the material of this study. The cases were divided in 2 groups, burn cases (24) and non-burn cases (176). The data thus collected was analyzed statistically. It wa...

We can’t preclude the possibility of the use of chemical agents by terrorists I can recall the attempt committed with Sarin in the Tokyo-subway in 1995. For that reason it is necessary to know the chemical situation in the battlefield and in our urban environment as well, for example in the subway. Actually the possible detection principles of toxic-agent-detection-devices are chemical (simple ...

A potentiometric analyzer, developed to directly measure potassium and sodium concentrations, was evaluated on aqueous solutions, whole blood, serum, and plasma. The analyzer consists of three electrodes-sodium, potassium, and reference-mounted in a fIowcell configuration, and a modified digital pH meter, which displays the ion concentrations directly. Volume of the cell is about 100 l. The ele...

X-ray microanalysis has been used to study changes in concentration of P, S, Cl Na and K in synchronized HeLa S3 cells in g1 phase infected with Vaccinia virus. No dramatic redistribution of elements between nucleus and cytoplasm was demonstrated during the first 6 h post-infection, during which time viral shut-off of host protein synthesis occurred. [Cl] increased relative to [Na] and [K] duri...

Atomic absorption spectroscopy (AAS) is an analytical technique that Below Figure 1 is a block diagram of the major components of an atomic absorption. ATOMIC ABSORPTION SPECTROSCOPY TARANPREET SINGH MS12044 Chem. or Computer Schematic diagram of Atomic absorption spectrometer LINE. the flame atomic absorption photometry shows the presence of Ca, Cd, Co, Cu, Fe, Mg, Mn, Pb and Fig. 2. Schematic...

A method is described for the measurement of magnesium in biological materials and has been applied to the Unicam flame spectrophotometer SP 900. Samples were diluted in 10 mM strontium ethylenedinitrolo tetraacetate (EDTASr), 10 mM potassium carbonate, giving final magnesium concentrations of about 0.1 to 0.2 mM. The EDTASr almost eliminated the depression of magnesium emission by interfering ...