Composition identification

The physical techniques used in IC analysis all employ some type of primary analytical beam to irradiate a substrate and interact with the substrate s physical or chemical properties, producing a secondary effect that is measured and interpreted. The three most commonly used analytical beams are electron, ion, and photon x-ray beams. Each combination of primary irradiation and secondary effect defines a specific analytical technique. The IC substrate properties that are most frequendy analyzed include size, elemental and compositional identification, topology, morphology, lateral and depth resolution of surface features or implantation profiles, and film thickness and conformance. A summary of commonly used analytical techniques for VLSI technology can be found in Table 3. 

Liquid oral preparations are usually contained in PET or PETG containers. PETG has a different polymeric composition than PET as discussed under Types of Packaging Materials. Physical characteristics are listed in the USP and 21 C.F.R. specifies their composition. Identification of PET and PETG shows that these plastics are distinct and distinguishable from one another by IR spectrum, but the two compounds are similar as evaluated by thermal analysis.f " This type of plastic should be tested for colorant extraction as previously discussed. " ... 

The science that deals with the discovery, chemistry, composition, identification, biological and physiological effects, uses, and manufacture of drugs. 

Ye Haihui, Rixecker.G, Siglinde. H, et al. Compositional identification of the intergranular phase in liquid phase sintered SiC. J Euro Ceramic Soc., 2002, 22 2 379-2 387. 

Designed to sort compacted bottles, the Poly-Sort system employs conveyors for singulation, and two devices for color and chemical composition identification. A vibratory conveyor singulates bottles a read conveyor transports bottles to an ultrasonic sensor that detects their position a near-infrared system detects the resin type a camera detects the color of the container a computer integrates data and makes an identification air jets divert bottles to the appropriate segregation conveyor or hopper. 

Conner, H. A., P. A. Shipley, E. T. Blessinger, J. H. Kahn, and E. G. LaRoe Whiskey Composition Identification and Possible Origin of Components in Aged and Unaged Whiskey. Abstr. papers, 158th Meeting Amer. chem. Soc. 1969, MICR-27. 

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