%0 Journal Article %1 Alvarez-Puebla2007 %A Alvarez-Puebla, R. A. %A Dos Santos, D. S. %A Aroca, R. F. %D 2007 %J Analyst %K 6410 %P 1210--1214 %R 10.1039/b711361g %T SERS detection of environmental pollutants in humic acid-gold nanoparticle composite materials %V 132 %X Humic acid ( HA) solutions provide an unexpected medium for direct fabrication of gold nanoparticles ( HA -AuNP)and a clear window for surface-enhanced Raman scattering (SERS) with many potential applications in the ultrasensitive chemical analysis of environmental pollutants. It is demonstrated that the HA - AuNP fabrication can be easily achieved in a wide range of pH ( 2 to 12). The background SERS spectra of HA is relatively weak in absolute intensity, allowing the detection of the enhanced Raman signal from trace amount of contaminants. An in-situ approach is illustrated where the HA - AuNP fabrication is carried out with a HA solution containing the target pollutant. The technique may allow for the direct detection of organic pollutants present in the humic fraction of soil.

@article{Alvarez-Puebla2007, abstract = {Humic acid ( HA) solutions provide an unexpected medium for direct fabrication of gold nanoparticles ( HA -AuNP)and a clear window for surface-enhanced Raman scattering (SERS) with many potential applications in the ultrasensitive chemical analysis of environmental pollutants. It is demonstrated that the HA - AuNP fabrication can be easily achieved in a wide range of pH ( 2 to 12). The background SERS spectra of HA is relatively weak in absolute intensity, allowing the detection of the enhanced Raman signal from trace amount of contaminants. An in-situ approach is illustrated where the HA - AuNP fabrication is carried out with a HA solution containing the target pollutant. The technique may allow for the direct detection of organic pollutants present in the humic fraction of soil.}, added-at = {2011-10-01T01:34:32.000+0200}, author = {Alvarez-Puebla, R. A. and Dos Santos, D. S. and Aroca, R. F.}, biburl = {https://www.bibsonomy.org/bibtex/2ad328a5a4143e07df99b43961597dc64/afcallender}, di = {10.1039/b711361g}, doi = {10.1039/b711361g}, file = {Alvarez-Puebla2007.pdf:indexed\\Alvarez-Puebla2007.pdf:PDF}, groups = {public}, interhash = {7097782e2b5ed0eba687363740778101}, intrahash = {ad328a5a4143e07df99b43961597dc64}, journal = {Analyst}, keywords = {6410}, pages = {1210--1214}, sn = {0003-2654}, tc = {2}, timestamp = {2011-10-01T01:34:32.000+0200}, title = {SERS detection of environmental pollutants in humic acid-gold nanoparticle composite materials}, username = {afcallender}, ut = {WOS:000251051400013}, volume = 132, year = 2007 }