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Sampling and Sample Preparation: Practical Guide for Analytical Chemists

Posted By: AvaxGenius
Sampling and Sample Preparation: Practical Guide for Analytical Chemists

Sampling and Sample Preparation: Practical Guide for Analytical Chemists by Markus Stoeppler
English | PDF | 1997 | 216 Pages | ISBN : 3642644864 | 28.7 MB

The significant progress achieved in modern instrumental analysis has led to a continuous lowering of detection limits and improved precision. This should in principle permit the reliable and extremely precise analysis of trace compounds mainly trace elements, at levels down to the lowest natural concentrations. However, the frequently observed very high discrepancies between the analyt­ ical results of different laboratories as well as the deviations from true values are, regrettably, still common in analytical practice. Basic methodological errors at the determination step can usually be minimized or even avoided by carefully per­ formed quality control measures - e. g. by interlaboratory comparisons and the proper use of certified reference materials.

Principles and Practice of X-Ray Spectrometric Analysis

Posted By: AvaxGenius
Principles and Practice of X-Ray Spectrometric Analysis

Principles and Practice of X-Ray Spectrometric Analysis by Eugene P. Bertin
English | PDF | 1975 | 1098 Pages | ISBN : 1461344182 | 99.9 MB

Since the first edition of this book was published early in 1970, three major developments have occurred in the field of x-ray spectrochemical analysis. First, wavelength-dispersive spectrometry, in 1970 already securely established among instrumental analytical methods, has matured. Highly sophisticated, miniaturized, modular, solid-state circuitry has replaced elec­ tron-tube circuitry in the readout system. Computers are now widely used to program and control fully automated spectrometers and to store, process, and compute analytical concentrations directly and immediately from ac­ cumulated count data. Matrix effects have largely yielded to mathematical treatment. The problems associated with the ultralong-wavelength region have been largely surmounted.

Instrumental Multi-Element Chemical Analysis (Repost)

Posted By: AvaxGenius
Instrumental Multi-Element Chemical Analysis (Repost)

Instrumental Multi-Element Chemical Analysis by Z. B. Alfassi
English | PDF | 1998 | 516 Pages | ISBN : 9401060789 | 62.8 MB

The analysis of materials containing several elements used to be a difficult problem for analytical chemists, so a well established sequence of wet chemical qualitative tests were performed to ensure each element was detected.