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In this study, UV-Vis-NIR spectra characterized the following chromophores for emerald (Wood and Nassau, 1968): Cation Identifying absorption ... Significant traces of Mn, Ni, and Zn were also present ...
[22,26,27,31] Table 1 describes the letter symbols used in this review to represent the organic drug ions and molecules and the inorganic and organic nondrug ions that comprise drug acid-base ...