日期记录: October 31 2019

Duration: 50 minutes 37 seconds

This is the second out of three free masterclasses of XRF, explaining the differences of both XRF techniques and its related benefits.

X-ray fluorescence (XRF) is an analytical technique that can be used to determine the chemical composition of a wide variety of sample types including solids, liquids, slurries, and loose powders. It can quantify elements from beryllium (Be) up to americium (Am) in concentrations from 100% down to sub-ppm levels. After the first masterclass where we explained the basics of XRF, this second masterclass went into more details of both types of XRF: wavelength dispersive (WDXRF) and energy dispersive (EDXRF) spectroscopy, and the differences between the two types.

Table of contents
1. XRF MasterclassED versus WD-XRF 
03:54
2. Content
01:02
3. Where is XRF used?
01:04
4. Why use XRF?
02:15
5. The X-ray fluorescence spectrometer
00:50
6. Different types of XRF spectrometers
00:16
7. Different types of XRF spectrometers
00:28
8. ED-XRF vs WD-XRF
01:38
9. ED-XRF technology
00:47
10. Simple 2D ED-XRF Optics
00:19
11. WD-XRF technology
00:31
12. WD-XRF technology
01:09
13. Overview XRF technologies
01:13
14. Technological innovations
00:18
15. History – Analyzing cement with EDXRF
01:42
16. History – Analyzing cement with EDXRF
02:22
17. Innovations over the years
01:05
18. EDXRF – Increasing analytical performance
00:58
19. Technology trends
02:07
20. SumXcore technology
00:40
21. WD versus ED-XRF technology
00:18
22. Key criteria
00:53
23. Elemental range
00:55
24. Measurement type
00:42
25. Measurement time (speed)
00:22
26. Resolution for light elements
00:37
27. Resolution for heavy elements
00:50
28. Sensitivity for light elements
00:43
29. Sensitivity for heavy elements
00:17
30. Detection limits
00:49
31. Cost of ownership
00:55
32. Comparing WD with ED-XRF
01:52
33. Combining benefits?!
00:21
34. Combined ED + WDXRF
01:36
35. Conclusions
01:13
36. Master classes:1. Theory of XRF2. ED versus WD-XRF3. Sample preparation – fused bead versus pressed powder
00:13
37. Q&A and Thank You!
13:23