Measurement Example of Environmentally Restricted Substances

Measurement of Alminum (Al) Alloy Sample

SEA1200VX performs high sensitivity measurements of Aluminum alloys resulting in superior “limit of detection” and excellent repeatability.

[ Measurement of cadmium (Cd) in alminum (Al) alloy]

Excellent linearity of the calibration curve for aluminum alloys was created at optimal measurement conditions resulting in a detection lower limit of 3.6ppm Cd at a measuring time of 300 seconds.
Measurement of Cd in al alloy
Measurement of Cd in al alloy
(Al Alloy sample made by Sumitomo Metal Technology)

[ Measurement of lead (Pb) in alminum (Al) alloy ]

A detection lower limit of Pb 4.2ppm is achieved due to excellent linearity of the calibration curve at optimal measurement conditions.
Measurement of Pb in Al alloy
Measurement of Pb in Al alloy
(Al Alloy sample made by Sumitomo Metal Technology)

[ Measurement of chromium (Cr) in alminum (Al) alloy ]

The detection lower limit of Cr in Al alloy is 18ppm at 300 seconds.
Measurement of Cr in Al alloy
Measurement of Cr in Al alloy
(Al Alloy sample made by Sumitomo Metal Technology)

[ Repeatability at 300 seconds measurement]

Repeatability tests at 300 seconds show superior Cd CV value of 1%, Pb CV value of 0.2%, and Cr CV value of 1.7%.
  < Measuremet Conditions >
Voltage : 50kV(Cd, Pb), 15kV(Cr)
Current : 1000μA(Cd), 273μA(Pb), 353μA(Cr)
Collimator : φ8mm
Filter : for Cd, Pb, & Cr
Time : 300 sec

< Standard Sample >
Al Alloy GAL5 made by Sumitomo Metal Technology
 
Cd
Pb
Cr
Ave. (ppm)
165
1180
138
Readings
20
STDEV (ppm)
2.1
2.1
2.3
CV%
1.2
0.2
1.7
Results (ppm)
178
1204
140

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