Titlebook: Spectroscopic Tricks; Leopold May Book 1974 Springer Science+Business Media New York 1974 Absorption.Atom.NMR.Sorption.catalyst.fields.flu

hector

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書目名稱Spectroscopic Tricks網(wǎng)絡(luò)公開(kāi)度




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panorama

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.

Cloudburst

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.

delusion

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.

Indicative

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.

Mediocre

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.

木質(zhì)

消散

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.

過(guò)剩

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.

AUGUR