[ Lead (Pb) in Pb Free Solder by SEA1200VX ]
Excellent linearity of the calibration curve for Pb-free solder created by optimal measurement conditions achieves a detection lower limit of 7.9ppm Pb at a measuring time of 300 seconds.
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DL at 300 Meas. Time: 7.9ppm |
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[ Excellent Repeatability ]
SEA1200VX achieves a significantly higher repeatability of CV 1.9 % at a measuring time of 100 seconds using an MBH Pb-free solder standard sample.
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< Measurement Conditions >
| Voltage : |
40kV |
| Current : |
1000µA |
| Collimator : |
φ8mm |
| Filter : |
for Pb |
| Meas. Time : |
100 sec. |
< Standard Sample >
MBH 74X HA |
Ave. (ppm) |
590 |
Readings |
20 |
STDEV (ppm) |
11.3 |
CV% |
1.9 |
Conc. (ppm) |
615 |
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[ Application to Real Samples ]
The following tables and graph show an example of a Pb-free solder measurement by SEA1200VX achieving better correlation with ICP-OES.
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< Measurement Conditions >
| Voltage : |
40kV |
| Current : |
1000µA |
| Collimator : |
φ8mm |
| Filter : |
for Pb |
| Time : |
300 sec. |
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Spectrum of Sample 3
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< Comparison with ICP-OES and XRF data >
Sample |
ICP-OES |
XRF |
1 |
310 |
310 |
2 |
308 |
299 |
3 |
42.1 |
45.0 |
4 |
113 |
120 |
（unit : ppm） |
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