Electron Spectroscope Analysis of the Atomic Content of Samples of Occupational Health Interest

摘要

A total of 25 samples were received and examined by induced electron emission spectroscopy (also known as ESCA). Included were dried lung tissue from miners, coal dusts from Pennsylvania and Utah, different minerals containing SiO2, a cement powder, and porous filters which had been used to trap dust particles. Elemental identification and estimated weight percentages were determined for these samples. A tabulation of detection limits for our current spectrometer for 33 elements was prepared. These limits were determined for a specific set of operating conditions and can be reduced by employing longer total scan times. Specific problems concerned with induced electron emission spectroscopy are discussed. Some suggested applications to work of potential interest to health and environmental studies are outlined. Comments are given on instrumental improvements available to improve the quality of induced electron emission spectral results and to reduce the time required for analyses.