Hi,
Can anyone explain the following. I'm measuring S and correcting for Mo interference. So I have a high purity 316H steel (16.9 Wt. % Cr; 2.25 wt % Mo; 11.9 wt % Ni and 66.73 wt % Fe) - which I assume has no sulphur (datasheet <0.002 wt %).
I use 316H as the interference standard, specify the interfere in standard assignments, when I click analyse the sulphur content goes from 400 ppm (without interference correction) to 60 ppm with interference correction. Now why does it not go to 0 ppm? Now I've also analysed the 316H standard as an unknown and get a similar number.
If I use the "old" count method ratio of counts on S Ka to counts on Mo Ka for 316H (assumed blank). Use this ratio*measured Mo Ka to correct the unknown 316H data - I get 0, 10, 10, 20 ppm for the different spectrometers. (I'm measuring S on 4 spectrometers),.
Thanks
Ben