... YM, Cao Z-Q, Ozaki Y: Surface- enhanced Raman scattering of biological molecules on metal colloid II: effects of aggregation of goldcolloid and comparison of effects of pH of glycine solutions ... standard for arsenic witha maximum contaminant level (MCL) of 10 μg·l-1(ppb)[35,36]. There exists an urgent need for the develop-ment of methods for effective monitoring and measure-ment of arsenic ... Simple chemical method for forming silver surfaces with controlled grain sizes for surface plasmonexperiments. Langmuir 2003, 19:6857.21. Hao J, Xu Z, Han M-J, Xu S, Meng X: Surface- enhanced Raman...