標(biāo)題: Titlebook: Spectroscopic Tricks; Leopold May Book 1974 Springer Science+Business Media New York 1974 Absorption.Atom.NMR.Sorption.catalyst.fields.flu [打印本頁] 作者: hector 時間: 2025-3-21 16:36
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書目名稱Spectroscopic Tricks網(wǎng)絡(luò)公開度學(xué)科排名
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書目名稱Spectroscopic Tricks被引頻次學(xué)科排名
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書目名稱Spectroscopic Tricks年度引用學(xué)科排名
書目名稱Spectroscopic Tricks讀者反饋
書目名稱Spectroscopic Tricks讀者反饋學(xué)科排名
作者: panorama 時間: 2025-3-21 23:38
A Simple Modification of a Flame Photometer for Routine Trace Potassium Analysis performance at much lower wave lengths (typically 250 nm). This means that for trace potassium analysis by emission flame photometry on a general purpose instrument, the grating and photomultiplier tube would have to be changed. A simple modification of a flame photometer was devised to avoid these costly and inconvenient changes.作者: Cloudburst 時間: 2025-3-22 04:02
Mounting for New Safety Door for Perkin-Elmer Model 303 Atomic Absorption Spectrophotometer danger of flashbacks can also be minimized with the use of an aspirator retrofit kit sold by Perkin-Elmer. It was found, though, that by removing the semicircular metal rear shield from the sample space, and fabricating a new shield, the safety door sold with the model 403 instrument can be mounted on the model 303.作者: delusion 時間: 2025-3-22 08:06
A Computer-Controlled Sampler for Atomic Flame Spectroscopyeraging and randomization of the sampling sequence.. Therefore, a solution sampler that is capable of rapid response and dependable operation and can be simply programmed for computer control has been designed and constructed.作者: Indicative 時間: 2025-3-22 10:26
A Rotating-Disk Sample Holder for the Sparking of Flat-Metal-Disk Samplest effects, precautions must be taken to safeguard against the effects of selective evaporization, which are not interelement effects in the true sense. Introducing fresh sample into the analytical gap for each discharge offers a means to overcome the effects of selective evaporization.作者: Mediocre 時間: 2025-3-22 13:51
Vented Cupped Electrodesin preventing ejection. A more effective method which overcomes the difficulty is to vont the cup at the bottom before filling. This is carried out by drilling two small holes through the cup wall, the holes being diametrically opposed and just above the floor of the cup.作者: 木質(zhì) 時間: 2025-3-22 18:24 作者: 消散 時間: 2025-3-23 01:15
Tuning Stubs as an Aid to Coupling RF Energy to Electrodeless Discharge Lamps inefficient and the coaxial transmission line will dissipate some of the energy as heat, and (2) some of the rf energy will be reflected back to the rf generator with possible damage to the generator, particularly the magnetron oscillator tube.作者: 過剩 時間: 2025-3-23 01:51
A Compact Gas Jet for Optical Emission Spectroscopyts as compared with other jets under the same excitation conditions. The use of the jet produces a stabilized arc, as well as the depression of the cyanogen bands, in a nitrogen-free atmosphere. The simplicity of the gas jet electrode holder simplifies the change of the electrodes between samples.作者: AUGUR 時間: 2025-3-23 05:56 作者: acquisition 時間: 2025-3-23 11:59 作者: incite 時間: 2025-3-23 15:58 作者: SUGAR 時間: 2025-3-23 18:01 作者: 宮殿般 時間: 2025-3-24 01:18
A Rotating-Disk Sample Holder for the Sparking of Flat-Metal-Disk Sampleshe effects due to varying composition of the analytical material in the discharge column, by time-resolved spectroscopy, to better explain interelement effects, precautions must be taken to safeguard against the effects of selective evaporization, which are not interelement effects in the true sense作者: 吊胃口 時間: 2025-3-24 04:56
Vented Cupped Electrodesvapor produced by the rapid heating The practice of venting the packed electrode by pricking into the charge with a pin is not particularly effective in preventing ejection. A more effective method which overcomes the difficulty is to vont the cup at the bottom before filling. This is carried out by作者: Adj異類的 時間: 2025-3-24 07:10
A Cylindrical Sector Driven by Either Water or Airctor driven by either water or compressed air in place of the usual electrical motor. It is designed to operate in either the water system for cooling the electrode holders, or in the compressed air line circulated from a central location in the laboratory building. The term sector defines the rotat作者: 致詞 時間: 2025-3-24 10:51
A Symmetrical Cylindrical Rotating Step Sectorive implementation may be accomplished by several methods. Numerous literature references are listed by Meggers and Scribner . and include step slits, step filters, step wedges, rotating log sectors, and rotating step sectors. Harrison . gives a detailed critical discussion of the methods and a conv作者: 美學(xué) 時間: 2025-3-24 17:22 作者: minaret 時間: 2025-3-24 20:39 作者: murmur 時間: 2025-3-25 01:47 作者: 亂砍 時間: 2025-3-25 03:55
Tuning Stubs as an Aid to Coupling RF Energy to Electrodeless Discharge Lampsncorrect coupling of the rf energy (via the usual coaxial transmission line) occurs, several undesirable conditions result: (1) The energy transfer is inefficient and the coaxial transmission line will dissipate some of the energy as heat, and (2) some of the rf energy will be reflected back to the 作者: magenta 時間: 2025-3-25 09:07 作者: EPT 時間: 2025-3-25 12:24
A Simple Modification of a Flame Photometer for Routine Trace Potassium Analysisnalysis in this concentration range.. In fact, since K is not as ubiquitous as Na, precautions to avoid spurious contamination of samples should not need to be as stringent. However, conventional flame photometers are generally less sensitive at the detection wave length of 766.5 nm for K. Good phot作者: 浮夸 時間: 2025-3-25 15:52 作者: 愉快嗎 時間: 2025-3-25 20:20
ublished in the journal Applied Spectroscopy. These tricks have proved of value since they first appeared in the journal in 1959. They give solutions to many problems of workers in the var- ious fields of spectroscopy. For the novice, the use of ali three vol- umes may provide insight into the impro作者: Mosaic 時間: 2025-3-26 02:50 作者: 強化 時間: 2025-3-26 05:44
Prevention of Laser Microprobe Staining of Analyzed Metalsmple closely adjacent areas is thereby nullified. Deposition of the stain can be restricted to the dimensions of a central hole in a paper shield; however, placement of a shield is difficult even for plane surface samples.作者: Pepsin 時間: 2025-3-26 11:01 作者: Afflict 時間: 2025-3-26 14:45
William Sunderland,Robert S. Hodge,Walter G. Boyle,Eugene Fishers provided by Wilson’s renormalisation group theory [629, 630], which is a topic on its own and not presented in this book. Instead, we focus on its implications on universal scaling and illustrate the main results, e.g. by sketching how renormalisation-group theory allows one to identify the releva作者: Affluence 時間: 2025-3-26 20:31
M. S. Wangcally, far-from-equilibrium systems often display - namical scaling, even if the stationary state isvery far from being critical. A 1 As an example of a non-equilibrium phase transition, with striking practical c- sequences, consider the allotropic change of metallic ?-tin to brittle ?-tin. At o equ作者: BUCK 時間: 2025-3-27 00:02 作者: 欲望小妹 時間: 2025-3-27 02:03 作者: Peak-Bone-Mass 時間: 2025-3-27 08:00
L. Toft,G. A. Roworthcally, far-from-equilibrium systems often display - namical scaling, even if the stationary state isvery far from being critical. A 1 As an example of a non-equilibrium phase transition, with striking practical c- sequences, consider the allotropic change of metallic ?-tin to brittle ?-tin. At o equ作者: Cerumen 時間: 2025-3-27 13:03
H. G. Yusterial equations is obtained, which is solved numerically. The similarity parameters controlling the film boiling process are determined. On the basis of parametric numerical calculations, the dynamics of the vapour layer are investigated for the case of a plane hot body moving in water with the room p作者: 提名 時間: 2025-3-27 16:04 作者: Ejaculate 時間: 2025-3-27 18:46 作者: 擔(dān)憂 時間: 2025-3-28 00:46 作者: 討人喜歡 時間: 2025-3-28 02:30 作者: 實施生效 時間: 2025-3-28 06:22
Lawrence T. Sennelloc. Natl. Acad. Sci. USA 7:253, 294, .). In a second development, this concept was applied to quantum mechanics, first by Paul Dirac (Phys. Z. Sowjetunion 3, .) and then by Richard Feynman (Rev. Mod. Phys. 20:367, .), expressing the propagator of the Schr?dinger equation in terms of a complex-valued 作者: 賄賂 時間: 2025-3-28 11:27
Rapid and Inexpensive Sampling Technique for Emission Spectroscopic Analysis of Thin Filmsg cm. would furnish the required 10 mg per exposure, but often the films have thicknesses of 1 . or less and their area and density is less than in this example. Known ways to increase the amount of material needed to improve the sensitivity to the level mentioned above are to prepare thin films of 作者: 流出 時間: 2025-3-28 15:22
Book 1974 so that the reader can easily compare them. To maintain the advantages in- herent in a single collection of contributions, the subject index for this volume is cumulative including the tricks in the previous vol- umes. Both author and journal indices are provided for this vol- ume, the latter citin作者: ENACT 時間: 2025-3-28 20:33
d together so that the reader can easily compare them. To maintain the advantages in- herent in a single collection of contributions, the subject index for this volume is cumulative including the tricks in the previous vol- umes. Both author and journal indices are provided for this vol- ume, the latter citin978-1-4684-2744-8978-1-4684-2742-4作者: 的’ 時間: 2025-3-29 02:39 作者: 忙碌 時間: 2025-3-29 06:08
P. E. Walters,T. Monacie isvery far from being critical. A 1 As an example of a non-equilibrium phase transition, with striking practical c- sequences, consider the allotropic change of metallic ?-tin to brittle ?-tin. At o equ978-94-017-8372-9978-90-481-2869-3Series ISSN 1864-5879 Series E-ISSN 1864-5887 作者: 分期付款 時間: 2025-3-29 08:19 作者: 平淡而無味 時間: 2025-3-29 14:42
J. W. Mellichamp,L. L. Wilcoxe isvery far from being critical. A 1 As an example of a non-equilibrium phase transition, with striking practical c- sequences, consider the allotropic change of metallic ?-tin to brittle ?-tin. At o equ978-94-017-8372-9978-90-481-2869-3Series ISSN 1864-5879 Series E-ISSN 1864-5887 作者: debase 時間: 2025-3-29 17:57
H. N. Barton,J. Benallo results obtained within the frame of different approaches is presented, the advantages of the new state-to-state kinetic model are disc978-3-642-10178-6978-3-642-01390-4Series ISSN 1860-4846 Series E-ISSN 1860-4854 作者: KIN 時間: 2025-3-29 23:41
An Improved Spectrographic Evaporating DishTeflon evaporating dishes have been available for some time. However, their use in emission spectroscopy has been limited because of poor recovery of powdered samples due to electrostatic charging of the dishes.作者: 沙草紙 時間: 2025-3-30 03:13 作者: consolidate 時間: 2025-3-30 06:39 作者: Offbeat 時間: 2025-3-30 08:16 作者: frozen-shoulder 時間: 2025-3-30 15:22 作者: 支形吊燈 時間: 2025-3-30 20:07
http://image.papertrans.cn/s/image/873934.jpg作者: 同音 時間: 2025-3-30 21:46
https://doi.org/10.1007/978-1-4684-2742-4Absorption; Atom; NMR; Sorption; catalyst; fields; fluorescence; instruments; metals; spectroscopy; ultraviole作者: DEI 時間: 2025-3-31 01:07
The Preparation of Metal Ingots for Use as Chemical and Spectrographic Standardsn.Table 1. Nominal Composition of B-1900.as long term chemical standards are prepared by normal foundary techniques. In both cases the levels of trace or contaminant elements obtained are difficult to predict, particularly when they are volatile at the melt temperature or do Rot alloy with the matrix.作者: agenda 時間: 2025-3-31 05:58
Qualitative Analysis of Precipitates by Graphite Filter Methodse precipitates can be collected by a Millipore filter and easily analyzed qualitatively. When an x-ray fluorescence spectrometer is not available, or the suspected elements are not amenable to the technique, the methods described here are helpful.作者: DNR215 時間: 2025-3-31 10:08
A Simple Multiport Atomic Absorption Burner Heads easy to fabricate, and the cost is only a fraction of the cost of the product that is available commercially. It can be made out of a single slot old burner head or stainless steel tubing of a suitable size.作者: 半身雕像 時間: 2025-3-31 15:29 作者: 口訣法 時間: 2025-3-31 20:54
J. Dieleman,A. W. Witmer,J. C. M. A. Ponsioen,C. P. T. M. Damens of equilibrium critical phenomena, providing this background in a self-consistent way and establishing basic notations. This chapter may be used to recall the main features of modern theories of phase transitions for beginners who are not entirely familiar with the concepts of scaling and universa作者: 公司 時間: 2025-4-1 00:03
William Sunderland,Robert S. Hodge,Walter G. Boyle,Eugene Fishers of equilibrium critical phenomena, providing this background in a self-consistent way and establishing basic notations. This chapter may be used to recall the main features of modern theories of phase transitions for beginners who are not entirely familiar with the concepts of scaling and universa作者: ferment 時間: 2025-4-1 02:21
S. L. Odess,G. S. Goldenntitative results on non-equilibrium phase transitions“The importance of knowledge consists not only in its direct practical utility but also in the fact the it promotes a widely contemplative habit of mind; on this ground, utility is to be found in much of the knowledge that is nowadays labelled ‘u作者: 拖債 時間: 2025-4-1 08:42 作者: conference 時間: 2025-4-1 12:56
R. E. Rainfordnd; on this ground, utility is to be found in much of the knowledge that is nowadays labelled ‘useless’. ” Bertrand Russel, In Praise of Idleness, London (1935) “Why are scientists in so many cases so deeply interested in their work ? Is it merely because it is useful ? It is only necessary to talk 作者: slow-wave-sleep 時間: 2025-4-1 14:37
