Table 1.

LCF results for silver LIII-edge XANES spectra of silver ion-treated bacteria with silver reference compounds silver-cysteine, silver-histidine, silver-alanine, and silver–dl-aspartic acid

Sample	% contributions to different chemical forms of silvera
	Silver-cysteine	Silver-histidine	Silver-alanine	Silver–dl-aspartic acid
E. coli + silver nitrate	24	10	37	29
S. aureus + silver nitrate	10	47	40	3
L. monocytogenes + silver nitrate	14	47	26	13

^aThe percentage contributions of different silver species to the chemical forms of silver are shown; there was less than ±10% error.