SpectroStandards^®    Organo-metallic  standard  solutions  are  chelated  and  stabilized standards diluted to low concentration levels ready-for-use, for preparing subsequent single element dilutions or for preparing multi-element standards. The standards are sulfur free, unless otherwise noted, and intended for x-ray fluorescence (XRF), plasma emission (ICP or DCP), rotating disk (rotrode) or atomic absorption (AA) analyses. A certificate of analysis accompanies each item; supplied in glass bottles containing 100 cc of standard.