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Srivani, P.
- Inductively Coupled Plasma –Optical Emission Spectroscopy: A Review
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Authors
Affiliations
1 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh – 508001, IN
2 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh – 508001, HK
1 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh – 508001, IN
2 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh – 508001, HK
Source
Asian Journal of Pharmaceutical Analysis, Vol 3, No 1 (2013), Pagination: 24-33Abstract
Spectroscopy is the chief experimental technique of atomic and molecular physics and involves determining the energy states of atoms or molecules by looking at the light absorbed or emitted when they change states. Measuring the frequency of light absorbed or emitted which is determined by the energy difference between the two states, can provide a sensitive probe of interactions which perturb those energy states. Among those in this review we revealed that the principle, instrumentation and applications of inductively coupled plasma optical emission spectroscopy. In this sample is usually transported into the instrument as a stream of liquid sample. Inside the instrument, the liquid is converted into an aerosol through a process known as nebulisation. The sample aerosol is then transported to the plasma where it is desolvated, vaporized, atomized, and excited and/or ionized by the plasma. The excited atoms and ions emit their characteristic radiation which is collected by a device that sorts the radiation by wavelength. The radiation is detected and turned into electronic signals that are converted into concentration information for the analyst.Keywords
Spectroscopy , Nebulisation, Desolvation, Plasma
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- New Analytical Methods in Nanotechnology-A Review
Abstract Views :461 |
PDF Views:83
Authors
Affiliations
1 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh-5008001
2 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh-5008001, IN
1 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh-5008001
2 Nalanda College of Pharmacy, Nalgonda, Andhra Pradesh-5008001, IN
Source
Asian Journal of Research in Pharmaceutical Sciences, Vol 3, No 1 (2013), Pagination: 31-41Abstract
Nanotechnology may be able to create many new materials and devices with a vast range of applications, such as in medicine, electronics, biomaterials and energy production. On the other hand, nanotechnology raises many of the same issues as any new technology, including concerns about the nanotoxicity and environmental impact of nano materials, and their potential effects on global economics. Like electricity or computers before it, nanotech will offer greatly improved efficiency in almost every facet of life. But as a general-purpose technology, it will be dual-use, meaning it will have many commercial uses and it also will have many military uses making far more power -full weapons and tools of surveillance. Thus it represents not only wonderful benefits for Humanity, but also grave risks. A key understanding of nanotechnology is that it offers not just better products, but a vastly improved manufacturing process. A computer can make copies of data files—essentially as many copies as you want at little or no cost. It may be only a matter of time until the building of products becomes as cheap as the copying of files. That's the real meaning of nanotechnology and why it is sometimes seen as "the next industrial revolution." Generally, nanotechnology deals with developing materials, devices, or other structures possessing at least one dimension sized from 1 to 100 nanometers. Quantum mechanical effects are important at this quantum-realm scale. In this project a discussion about each method and its principle, applications, and limitations are done in details. These techniques are discussed in detailed further. Applications for the future: Efficient and energy-saving Cube-shaped nanostructures known as metal organic frameworks (MOFs) are the storage medium of the future.Keywords
Nanotechnology, Analysis, Contamination, Characterization, Composition.References
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