Recent advances in applications of nanomaterials for sample preparation

Chitosan film loaded with silver nanoparticles—sorbent for solid phase extraction of Al(III), Cd(II), Cu(II), Co(II), Fe(III), Ni(II), Pb(II) and Zn(II)

“…Metal and metal oxide nanoparticles due to their unique optical, electrical, adsorptive, catalytic and magnetic properties as well as, high surface-to-volume ratio, have emerged as powerful adsorbents for environmental remediation's (Y. Liu, Su, Zhang, Jiang, & Yan, 2011;Pradeep, 2009;Ray Phoebe, 2015) or as sorbents for environmental and biological sample preparation steps, for sensing, detection and speciation of toxic elements and organic contaminants (Dastafkan, Khajeh, Ghaffari-Moghaddam, & Bohlooli, 2015;Jiang et al, 2012;Liang & Guo, 2009;Ligler & White, 2013;Lucena, Simonet, Cárdenas, & Valcárcel, 2011;Pierce & Zhao, 2010;Valentini & Palleschi, 2008;Xu, Qi, Li, Bai, & Liu, 2015). However their low mechanical strength and low chemical resistance limit their practical application and complicate applied analytical procedures.…”

Ionic liquid coated carbon nanospheres as a new adsorbent for fast solid phase extraction of trace copper and lead from sea water, wastewater, street dust and spice samples

“…Therefore, a contact time was not used for the adsorption and elution times in further experiments. Since the CNSs has high surface area and surface activity it shows high adsorption speed and capacity [20][21][22]39]. As far as we know, there has been no report yet about adsorption and elution without shaking/vortexing for Cu(II) and…”

Functionalized gold nanoparticles for sample preparation: A review

“…Functionalized nanomaterials are often applied for separation and sample pretreatment coupled with various detection methods for qualitative and quantitative analysis of the target analyte(s) . What the nanoparticle chemistry is concerned, silica, polymer, magnetic, metal oxide, metal (in particular silver and gold) nanoparticles are most frequently utilized carriers.…”