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Where innovation leads to success!
LDetek has put a lot of effort and time to introduce on the market a trace nitrogen in argon or helium analyzer with outstanding
performances. We are proud to offer a reliable instrument that has been carefully designed with specialists having over ten years
experience in trace nitrogen measurement and plasma emission detector.
For more information, comments or questions, don’t hesitate to contact LDetek
(info@ldetek.com).
Conclusion
Figure 15
:
*
10 ppb concentration step changes
Referring to the noise of the LD8000 from figure 11, we get maximum 3.6 ppb peak to peak. Using the standard deviation method,
we have used 15 consecutive points where we get the maximum peak to peak noise. Five times the standard deviation gives a LDL of
4.4 ppb.
This kind of instrument is mostly used for concentration higher than 100 ppb. The LDL is low enough for all Air Separation Unit or glove
box application.
If LDL lower than that is required, LDetek is manufacturing the LD8000-Plus, which is the ppb version of the trace Nitrogen analyzer.
We can detect lower than 1 ppb with signal to noise ratio very low. Please contact factory.
Note:
This result has been obtained in LDetek facilities with the LDGSS stream selector device with a well purged system according to LDetek standard methods.
*
0,035
0,04
0,03
0,025
ppm)
0,015
0,02
Response (
0,01
0,005
0
52
02
51
01
5
0
Time (minutes)
DETECTION LIMIT