Glasses sample analysis

X-ray powder diffraction was recorded using a conventional x-ray powder diffractometer with Cu-Ka radiation. Polyimide film on which sample particles are deposited is glued on a glass sample holder with vacuum grease. Figure 1.6.9 shows the recorded diffraction pattern. An analysis of the pattern is made by comparing the lattice parameters and diffraction intensities of the particles and those of known iron compounds, and shows that the particles are Fe304. 

In Figure 6.1, two parts of the mass spectrum of the glass sample NIST SRM 613 measured by rf GDMS are illustrated.4 In the mass spectrum of the glass sample, the orientation for a qualitative analysis focuses on the ions from matrix, major and minor elements (Si+, Al+, Na+, Rb+, Sr+ or Pb+) and the plasma gas species, such as 40Ar16O+, 40Ar2+ or 40Ar12C+. The plasma gas ions... 

Table I. X-Ray Melt Glass No. Core No. Diffraction Analysis of NTS Melt Glass Samples ...

A. Denning helped select the glass samples at NTS, D. Bridges supplied the Well-5B water at NTS. E. Peck performed the spectrochemical analysis on the Well-5B water. 

Resin Elution Concentration. The first three ethyl ether elutions were combined into a 500-mL glass bottle with a Teflon cap liner. The bottles and all the laboratory glassware used in the sample analysis were cleaned with 6.0 N HC1, acetone, and hexane and then baked at 200 °C to remove the solvent. The combined elutions were brought to the laboratory for evaporative concentration and analysis. 

It seems that in ERD-TOF technique, the coming Glass 0211 can act as a suitable standard for not only the mass and energy calibrations but also for the relative concentrations of several elements. Further work on different Corning Glass samples to explore the feasibility of establishing their use as calibration standards in surface analysis techniques, such as ERD, SIMS, ESCA and AES, are in progress. 

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