We have been testing the performace and sensitivity limits of BioXAS-Spectroscopy Main. Including

Se 115 ppm K-edge EXAFS measurement of NIST 611

Sub ppm measurements on solid sample:  Au L3 edge - 500 ppb

1 ppm Eu XANES on NIST 614 standard

We are excited about these measurements! Please contact beamline staff to discuss the sensitivity for your experiments!