云南高校图书馆联盟文献共享服务平台- SPECTROPHOTOMETERS

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Comparison of Suomi-NPP OMPS total column ozone with Brewer and Dobson spectrophotometers measurements被引量：2: 《Frontiers of Earth Science》2015年第3期369-380,共12页Kaixu BAI Chaoshun LIU Runhe SHI Wei GAO; The objective of this study is to evaluate the accuracy of the daily nadir total column ozone products derived from the nadir mapper instrument on the Ozone Mapping and Profiler Suite （OMPS） flying onboard the Suomi...; 关键词：ozone mapping and profiler suite totalcolumn ozone Brewer Dobson

Trace amount of chromium（III） in waste water measured by extraction spectrophometry in H2CrO6-n-CsH11OH system: 《Journal of Chemistry and Chemical Engineering》2008年第6期49-51,共3页ZHANG Guo-fu YE He-lin LIANG Peng LIU Ling-ling; A novel, simple, rapid, economic and hypersensitive method of measuring Cr3＋ is described in this paper. Cr3＋ could be oxidated to H2CrO6, which is extracted by n-C5H11OH, so a trace amount of chromium is measured d...; 关键词：chromium（III） H2O2 n-pentanol EXTRACTION SPECTROPHOTOMETERS

Write-once medium with BiO_x thin films for blue laser recording: 《Chinese Optics Letters》2008年第4期294-296,共3页蒋志耿永友顾冬红; the National Natural Science Foundation of China under Grant No.50672108 and 60644002.; BiOx films are prepared by reactive direct current （DC） magnetron sputtering from a metallic bismuth target in Ar ＋O2 with different O2/Ar ratios. It is found that the optical property of BiOx films is sensitive to...; 关键词：Bismuth compounds Laser beams Laser recording Light reflection Magnetron sputtering Optical data storage Optical properties Phase transitions SPECTROPHOTOMETERS Thin films X ray diffraction analysis X ray photoelectron spectroscopy

Occurrence and distribution of metals and porphyrins in Nigerian coal minerals被引量：4: 《燃料化学学报》2007年第6期641-647,共7页OLAJIRE A A AMEEN A B ABDUL-HAMMED M ADEKOLA F A; The metal contents of Nigerian coal minerals were analyzed using an atomic absorption spectrophotometer. Calcium, Na, and Fe occurred as the major elements with concentrations ranging from 9 782 μg/g for Ca to 432 μ...; 关键词：METALS PORPHYRINS COALS TLC ultraviolet-visible and infrared SPECTROPHOTOMETERS

Gauss-Newton based kurtosis blind deconvolution of spectroscopic data被引量：1: 《Chinese Optics Letters》2006年第8期490-492,共3页袁景和胡自强; The spectroscopic data recorded by dispersion spectrophotometer are usually degraded by the response function of the instrument. To improve the resolving power, double or triple cascade spectrophotometer and narrow sl...; 关键词：Optical resolving power Signal to noise ratio SPECTROPHOTOMETERS

Optical properties and structures of silver thin films deposited by magnetron sputtering with different thicknesses被引量：4: 《Chinese Optics Letters》2006年第6期366-369,共4页孙喜莲洪瑞金侯海虹范正修邵建达; A series of thin Ag films with different thicknesses grown under identical conditions are analyzed by means of spectrophotometer. From these measurements the values of refractive index and extinction coefficient are c...; 关键词：CALCULATIONS Film growth Magnetron sputtering Optical properties Refractive index Silver SPECTROPHOTOMETERS SUBSTRATES X ray diffraction analysis

Constrained high-order statistical blind deconvolution of spectral data被引量：1: 《Chinese Optics Letters》2005年第9期552-555,共4页袁景和胡自强王桂英徐至展; A constrained high-order statistical algorithm is proposed to blindly deconvolute the measured spectral data and estimate the response function of the instruments simultaneously. In this algorithm, no priorknowledge i...; 关键词：Impulse response Mathematical techniques Signal to noise ratio SPECTROPHOTOMETERS Statistical methods

Effect of oxygen flow rate on the properties of SiO_x films deposited by reactive magnetron sputtering被引量：7: 《Chinese Optics Letters》2005年第8期490-493,共4页赖发春李明王海千姜友松宋亦周; This work was supported by the National Natural Sci-ence Foundation of China under Grant No. 50121202and 10174073; SiOx （x = 0-2） films were deposited on BK-7 substrates by a low frequency reactive magnetron sputtering system with the oxygen flow rate （OFR） changing from 0 to 30 sccm. The samples were characterized by atomic f...; 关键词：Atomic force microscopy Light extinction Magnetron sputtering OPACITY Oxygen Refractive index SILICA Silicon compounds SPECTROPHOTOMETERS Surface roughness X ray photoelectron spectroscopy

Influence of deposition rate on the properties of ZrO_2 thin films prepared in electron beam evaporation method被引量：4: 《Chinese Optics Letters》2004年第6期364-366,共3页张东平占美琼方明贺洪波邵建达范正修; ZrO2 thin films were prepared in electron beam thermal evaporation method. And the deposition rate changed from 1.3 to 6.3 nm/s in our study. X-ray diffractometer and spectrophotometer were employed to characterize th...; 关键词：DEPOSITION Electron beams EVAPORATION Polycrystalline materials Thin films X ray diffraction X ray spectrophotometers

Study on the Ternary Heteropolyacids in the Systems of P-Mo-W and As-Mo-W as well as their Application in the Spectrophotometric Determination of Low Tungsten: 《Rare Metals》1990年第1期10-15,共6页Chen, Huaxu Shao, Guangdi Qi, Xiaoling; The colored associated compounds of phosphomolybdotungstate and arsenomolybdotungstate with crystal violet are introduced. Their main characters have been studied. These two associated compounds may be used to determi...; 关键词：Polyvinyl Alcohol SOLUTIONS SOLUTIONS COLORING SPECTROPHOTOMETERS Applications Spectroscopy Absorption Spectrum Analysis Tungsten Compounds Spectroscopic Analysis

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