Radioactive tracer such as a cell or tissue, or as a flow tracer to track fluid flow. Radioactive tracers are also used to determine the location of fractures created by hydraulic fracturing in natural gas production. Radioactive tracers form the basis of a variety of imaging systems, such as, PET scans, SPECT scans and technetium scans. Radiocarbon dating uses the naturally occurring carbon-14 isotope as an isotopic label. Isotopes of a chemical element differ only in the mass number. For example, the isotopes of hydrogen can be written as H, H and H, with the mass number at top left. When the
Guar efficiently in formation cleaning process. Guar and its derivatives make gel complexes with ions of Aluminium, Zirconium, Titanium, Chromium and Boron. The borate–guar reaction is reversible, and depends on the pH (hydrogen ion concentration) of the solution. Crosslinking of guar with borate occurs at high pH (approximately 9–10) of the solution. Guar gum has also proven a useful substitute for locust bean gum (made from carob seeds). Guar meal korma and Guar meal Churi are widely used as prime raw material for Producing various kinds of Cattle feeds, Aqua feeds, Fish feeds, Poultry Feeds, Dairy feeds, Swine feeds etc. Through