Date: Tue, 15 Feb 94 13:33:01 NST
Subject: Re: EMPA of REEs
From: maggy@microprobe.esd.mun.ca (Maggy Piranian)

sorry i didn't reply sooner. although I haven't done ree's, i do have data for Zr, Zn, and Sr. for these i get 300ppm, 350ppm, and 230ppm respectively, at 60 sec, 30 na. i would expect the det. lim. to be considerably higher for ree's. i have a simple lotus spreadsheat that takes count time, count rate on peak and b.g. and conc of standard and generates a table of det. lim.'s as a function of current and count times. matrix effects are not accounted for, but at least it gives you a ball park idea. if
you wish i can try to send you the spreadsheat so you can put in your own data.
maggy@microprobe.esd.mun.ca