TY - JOUR
T1 - In situ synthesis of low-cost NELIBS substrate for rapid detection of ultra-low trace elements in liquid samples
AU - Keerthi, K.
AU - George, Sajan D.
AU - Kulkarni, Suresh D.
AU - Chidangil, Santhosh
AU - Unnikrishnan, V. K.
N1 - Funding Information:
The authors are thankful to Department of Atomic Energy (DAE), Board of Research in Nuclear Sciences (BRNS), Government of India for the financial support through the research grant with Ref. No. 34/14/04/2014-BRNS and Department of Science & Technology (DST)-Fund for improvement of S&T infrastructure (FIST) program. Keerthi K is thankful to Manipal Academy of Higher Education for the research fellowship provided.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1
Y1 - 2023/1
N2 - Nanoparticle Enhanced LIBS is one of the most powerful and emerging techniques with high sensitivity for trace element analysis and finding increasing applications in various fields of analytical chemistry. Despite many efforts being put forward for the design of NELIBS substrate, it remains a great challenge for developing a highly sensitive substrate that could be helpful for environmental and biological applications. In this work, we report our attempt to improve the detection sensitivity by developing a facile and versatile method capable of generating silver nanoparticles in-situ on the surface of poly dimethyl siloxane (PDMS) in a simple, cost-effective, and additional capping agent free-way. The prepared Ag-decorated PDMS substrate exhibits excellent sensitivity at extremely low concentrations enabling the detection of Cu, Pb, and Cd at a concentration as low as sub ppb levels. Analytical prediction capabilities of this technique was validated using leave one out method and results show interesting possibilities.
AB - Nanoparticle Enhanced LIBS is one of the most powerful and emerging techniques with high sensitivity for trace element analysis and finding increasing applications in various fields of analytical chemistry. Despite many efforts being put forward for the design of NELIBS substrate, it remains a great challenge for developing a highly sensitive substrate that could be helpful for environmental and biological applications. In this work, we report our attempt to improve the detection sensitivity by developing a facile and versatile method capable of generating silver nanoparticles in-situ on the surface of poly dimethyl siloxane (PDMS) in a simple, cost-effective, and additional capping agent free-way. The prepared Ag-decorated PDMS substrate exhibits excellent sensitivity at extremely low concentrations enabling the detection of Cu, Pb, and Cd at a concentration as low as sub ppb levels. Analytical prediction capabilities of this technique was validated using leave one out method and results show interesting possibilities.
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U2 - 10.1016/j.sab.2022.106575
DO - 10.1016/j.sab.2022.106575
M3 - Article
AN - SCOPUS:85143374116
SN - 0584-8547
VL - 199
JO - Spectrochimica Acta, Part B: Atomic Spectroscopy
JF - Spectrochimica Acta, Part B: Atomic Spectroscopy
M1 - 106575
ER -