The advantages are:
(a) Basic identification of the materials was first performed by light microscopy and gross analysis. This provides a large base of published information against which to check analysis and analytical technique.
(b) The analysis is specific to fibers. The minerals present can exist in asbestiform, fibrous, prismatic, or massive varieties all at the same time. Therefore, bulk methods of analysis such as X-ray diffraction, IR analysis, DTA, etc. are inappropriate where the material is not known to be fibrous.
(c) The analysis is quick, requires little preparation time, and can be performed on-site if a suitably equipped microscope is available.
The disadvantages are:
(a) Even using phase-polar illumination, not all the fibers present may be seen. This is a problem for very low asbestos concentrations where agglomerations or large bundles of fibers may not be present to allow identification by inference.
(b) The method requires a great degree of sophistication on the part of the microscopist. An analyst is only as useful as his mental catalog of images. Therefore, a microscopist's accuracy is enhanced by experience. The mineralogical training of the analyst is very important. It is the basis on which subjective decisions are made.
(c) The method uses only a tiny amount of material for analysis. This may lead to sampling bias and false results (high or low). This is especially true if the sample is severely inhomogeneous.
(d) Fibers may be bound in a matrix and not distinguishable as fibers so identification cannot be made.
*NOTE:Source taken from http://www.osha.gov
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The advantages of a monocular microscope is that it is easier to use than a stereo microscope, a disadvantage of the monocular microscope is that it only has a singular eyepiece, therefore, it is harder to see the image. The advantages of a stereo microscope is having two eyepieces, it is easier to focus the eye, and therefore, you can see a more three-dimensional image. A disadvantage for the stereo microscope is that it is a lot more expensive than the monocular microscope.
One advantage of biogas is that it is a renewable source of energy. It also has environmental benefits. One disadvantage is that it is not a cheap process in comparative terms to other biofuels.
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The main disadvantage of the Leeuwenhoek microscope was that it only had one lens. On the other hand, it had much better magnification and clarity than the compound microscopes that were being used at that time. The inventor was Antony Van Leeuwenhoek.
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What are the advantage and disadvantage of fidelio?"
Advantage and disadvantage of workshop
advantage: cheap, multiple lenses, can look at live specimens. disadvantage: poor resolution, poor magnification
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Advantage and disadvantage are complete opposites. An advantage is something which is beneficial to an individual. A disadvantage would be not to ones benefit.
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A polarized light microscope is commonly used to observe fibers. This type of microscope uses polarized light to enhance the visibility of features such as birefringence in fibers, allowing for detailed examination and analysis.
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