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(K) Materal C-20 C-28 C-30 C-35 C-37 C-40 C-50 106 Negligible P120 ± 25 P180 ± 50 P180 ± 50 NPO 0 ± 30 0 ± 30 0 ± 30 0.0001 0.0001 0.0006 0.0006 0.0001 0.0010 0.0020 3.8 Quartz 8.7 AIN 9.6 Alumina 96 9.8 Alumina 99.6 12.6 Titanate 20 Titanate 40 Titanate NEW ...
Quartz tungsten halogen lamps offer spectra that very closely match black body radiation, although typically with a lower color temperature than the sun. This means the UV part of the spectrum is lacking, see figure 1. Light-emitting diodes (LEDs) are used in research laboratories to construct ...
For those brave souls willing to venture a bit offshore, the next stop on their vintage search may be some of the smaller Swiss brands or any of the myriad now-defunct brands annihilated by the quartz crisis that were making stellar watches with parts and movements often coming from the sam...
仪器分析英文课件chapter 1introduction INSTRUMENTALANALYSIS Chapter1.Introduction AnalyticalChemistry:determiningthechemicalcompositionofsamplesofmatter.Qualitativeanalysis:identifyoffunctionalgroups,oratomic,molecularstructureofanalyte(what?)Quantitativeanalysis:amountofanalyte(howmuch?)§1.Classificationofanalyticalmethods 1...
Quartz crystal microbalance Mass spectrometry Kinetic methods Thermal gravimetry and titrimetry Activation and isotope dilution methods §3 Instruments for analysis manipulated and interpreted by human Overall process of instrumental measurement Data domain: way of encoding analytical response in electrical or ...