Isotopes-Brief Description (1)
Isotope refers to the different atoms of the same element with the same number of protons and a different number of neutrons that are mutually called as isotopes (that is, the different nuclides of the same element are mutually called as isotopes) (Isotope).
With the development of science and technology, radioactive isotopes have been widely used in industry, agriculture, medicine, environmental protection, military affairs, resource exploration, scientific research and many other fields, and have obtained significant economic and social benefits. Isotopes are invisible, untouchable, invisible, and hidden in daily life. For example, the-241 used in smoke alarms, the carbon-14 used in a breath test for H. pylori.
First, the purpose
For special light bulb, nuclear research, deuteron accelerator bombardment particles, tracer, low water peak optical fiber treatment; As a blunt thin layer of silicon nitride and silicon oxide nitride in memory production; Applied in nuclear physics, organic synthesis, atomic absorption spectrum, standard gas, calibration gas, etc.; As tracer and nuclear medicine PET diagnostic reagents in chemistry, biology, agriculture, geology and other scientific research fields; NMR deuterium generation reagent for solid-state nuclear magnetic and kinetic studies, Through integration techniques such as the structure and function of protein populations, Including isotope-encoding affinity labeling method (ICATTM), amino acid stable isotope labeling technology in cell culture (SILAC), absolute quantitative analysis method of target protein (AQUATM), etc
13C isotope use: applied to the standard fuel, nuclear physics, biology, medicine, standard gas, calibration gas, solar cells, amorphous silicon film, synthetic ammonia, carbon black, methyl compounds, used in plant physiological and biochemical research, soil and plant nutrition research, plant protection research, rice, flowers, agricultural crops improvement research, grassland nitrogen cycle research, etc.
18O isotope use: tracer, nuclear medicine PET diagnostic reagent in chemistry, biology, agriculture, geology and other scientific research fields; evaluation of human energy consumption, applied to laboratory research and field research in the field of sports science;
15N isotope use: Biomarker compounds are used for labeled polypeptide synthesis, used as biomedical tracer, mainly used for life science, agriculture science and other research fields, and the measured N value is used as the water environmental pollution degree indicator of ecosystem pollution monitoring.
Kr is isotope use: mainly used in physical research, counting tube, laser, ultraviolet source, standard gas, special mixture, etc.; can absorb X-rays, can be used as X-ray work of light shielding material; used to make the atomic lamp without electric energy;
Ne is isotope used: laser gyro working gas for satellites; navigation, positioning and orientation systems for satellites, aircraft and ships.
Xe is an isotope use: Xenon can cause anesthesia and expansion of cells, so that the action of nerve endings is temporarily stopped, and can be used as an anesthetic without side effects; in the atomic energy industry, xenon can be used to test the existence of high-speed particles, particles, muons, etc.
2. Isotope technology
1. Isotope tracing technique
The dynamic tracking of radioactive isotope with short trace half-life and the movement process and law of trace material is incomparable to conventional chemical analysis methods and has irreplaceable advantages. This technology has been widely used in the medicine, pesticide, veterinary drugs, fertilizer absorption, distribution, decomposition, metabolism, effect, residue and plant nitrogen fixation mechanism research, the diagnosis of human and livestock diseases; the leakage inspection of reservoir dam, the reaction and synthesis process of some new materials and new chemicals, etc.
2. Isotopic ray-ray detection technology
The detection sensitivity of radioactive isotope is very high, using the issued ray production of various isotope monitoring instruments, such as material level meter, density meter, thickness meter, nuclear scale, moisture meter, ray detection machine and ion smoke fire alarm, have been widely used in safety monitoring, industrial production, scientific research and other fields.
3. What can we offer?
1. Substances contained in the above isotopic periodic table; (calcium, chromium, germanium, iron, krypton, mercury, potassium, silicon, sulfur, lithium, nickel, selenium, strontium, etc.)
2. Stable isotopes;
3. Molecular imaging;
4. Synthetic products (such as deuterium-generation methane, heavy water, deuterium-generation organic matter, C13 organic matter, C14 organic matter, etc.)
5. Other products
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