2585
Anal. Chem. 1988, 58. 2585-2589
Figure 2. *'AI NMR spectra of (a) 10 pglml AI solution, vertical scale 5 X , and (b) 10 pg/mL AI solution 4- HCI.
different chemical environments. Following installation of the new preamplifier,the detection limit for nonacidified samples when employing lo00 scans &e., 13 min run time) was 10 wg/mL Al. Acidification of samples