Hiromoto, Terahertz-wave antireflection coating on Ge and GaAs with fused quartz, Appl. Opt. 37(10), 1862 (1998) Google Scholar I. Hosako, Antireflection coating formed by plasma-enhanced chemical-vapor deposition for terahertz-frequency germanium optics, Appl. Opt. 42(19), 4045 (2003) ...
Quartz tungsten halogenlamps 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 sola...
(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 ...
by the interaction of an intense magnetic field (produced by radio frequency [RF] passing through a copper coil) on a tangential flow of gas (normally argon), at about 15 L/min flowing through a concentric quartz tube (torch
17 may be provided in microminiaturized form using semiconductor technology and etching techniques using Si or quartz wafers. One such wafer may contain a miniature quartz cell 58 and/or miniature ITV system, with the spectrometer replaced by a simple optical filter and detector 60 illuminated by ...
A Perkin Elmer NexIon 300D quadrupole ICP-MS, equipped with an SC Fast peristaltic pump, a Meinhard concentric nebuliser, a glass cyclonic spray chamber and a standard quartz torch (2.0 mm injector i.d.) operating in standard mode was used for spICP-MS analysis (Perkin Elmer, Waltham, MA...
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...
chronopotentiometry Coulometry Amperometry, polarography Conductometry 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 Da...