Table T7. Lower limits of detection for select trace elements on each spectrometer. ,,,
https://doi.org/10.14379/iodp.proc.391.202.2026,,,
,,,
"* = negative intercept, no LLD possible. All units are ppm (µg/g), calculated using the Potts (1992) 6sigma formula. LLDs cannot be calculated for elements with negative intercepts.",,,
,,,
,XRF1,XRF2,XRF3
10 KV,,,
Cr,2.8,3.4,4.7
,,,
30 KV,,,
Ni,15.6,10.9,10.3
Rb,0.2,0.45,*
Sr,0.5,0.56,0.66
Y,0.3,0.27,*
Zr,*,0.12,0.18
Nb,0.2,0.22,0.24
,,,
50 KV,,,
Rb,0.82,1.26,0.36
Sr,0.71,1.12,0.96
Y,0.07,0.61,*
Zr,0.4,0.93,0.36
Nb,0.17,0.52,*