SPEX™ model

Tumbler, jar, drum, or cannon ball mills Szegvari attritor vertical mills and other vertical stirred ball mills Planetary Fritsch and Retsch model mills Shaker (vibratory) SPEX model mills... 

The epoxy and silicone-epoxy resins were molded into 37-mm diameter by A-mm thick discs. These were ground in a SPEX model 800A carbide lined two-ball grinder, and the resulting powder sieved to provide controlled sample configurations for laboratory analyses. 

Spectroscopic Measurements. A Beckman Model 5230 spectrophotometer was used to record in situ UV-visible spectra of the PPy films, which were electrochemically deposited on the indium-tin oxide (ITO) coated glass (Delta Technologies). For Raman measurements a Spex Model 1403 double spectrometer, a DM IB Datamate, and a Houston Instrument DMP-40 digital plotter were employed. Details of the experimental setup for in situ Raman spectroscopy are described elsewhere (26). 

The basic experimental arrangement is shown in Figure 1. A Q-switched ruby pump laser is frequency doubled to pump a broadband dye laser with a piano-spherical cavity. The remaining ruby power and the dye pulse were then used for the non-linear spectroscopy experiments. Spectra were recorded on film or plates by means of a Spex Model 1701 spectrograph equipped with a camera. The smoothness of the dye output intensity with wavelength, which determines the sensitivity of the single-pulse spectra, varied from shot to shot and depended on the dye. 

Figure 2-6 Schematic of a Spex Model 1403/4 double monochromator. (Reproduced with permission.)...

Figure 2-7 Raman spectra of CCI4 (488.0-nm excitation) obtained under different conditions using a Spex Model 1403 double monochromator equipped with 1,800 grooves/mm gratings and a Hamamatsu R928 photomultiplier, (a) The effect of spectral bandpass (0.2-cm-1 increments per data point), (b) The effect of size of increments between the data points (1-cnT1 slit width accumulation time for all spectra was 1 second per data point.)...

Spectrometer Spex Model 1877 triple polychromator with 100 pm slit width (resolution, 5cm 1)... 

A Spectra-Physics Model 125 He-Ne laser was used in conjunction with a Spex Model 1400 Double Monochromator, in the spectrometer described by Miller, Rousseau, and Leroi, An ITT FW-130 Star-Tracker photomultiplier was used for detection. 

Raman Spectra. Microcrystalline samples of [XeFj JjPdFj ", [XCjFi/ljPdF, ", XCjFi/AuF,", and XeFj AuFj", enclosed in 1-mm o.d. quartz capillaries, were excited at 6328 A, using a 100-mW He-Ne ion laser, and spectra were recorded from a Spex Model 1400 double monochromator. Spectra were also obtained on a Cary S3 spectrometer equipped with a 100-mW At ion (4880-A) laser. The spectra are tabulated in Table IV and the AuF salt spectra are given in Figure 6. ... 

Raman Spectra.—The microcrystalline solids and a sample of liquid S2O6F2 were each contained in sealed thin walled 1-mm diameter Pyrex glass capillaries for Raman spectroscopy. The spectrometer employed a Spectra-Physics Model 125 He-Ne laser in conjunction with a Spex Model 1400 double monochromator. 

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