An improved bonded-polydimethylsiloxane solid-phase microextraction fiber obtained by a sol–gel/silica particle blend

A new solid phase micro extraction for simultaneous head space extraction of ultra traces of polar and non-polar compounds

“…Precursor concentration of Zn(NO 3 ) 2 ·6H 2 O and HMT are critical factors affecting the diameter and alignment of nanorods. Decreasing the precursor concentration from 0.1 M to 0.001 M, has transformed the nanorod from rod-like to wire-like [18]. Therefore, applying this procedure resulted in the achievement of a high effective surface area for the remarkable absorbing analytes from the matrix of samples such as pesticides.…”

“…It is also reported in literature that, the position of the substrate fiber should be in a vertical position (parallel to the wall of vessel), to achieve the ordered arrays of ZnO nanorods [18].…”

“…To achieve the required alignment of ZnO nanorod on the substrate, during the synthesis procedure, the effective parameters should be optimized [18]. Precursor concentration of Zn(NO 3 ) 2 ·6H 2 O and HMT are critical factors affecting the diameter and alignment of nanorods.…”

“…The prepared SPME fibers were applied to extraction of 1,4-dichloro-nitrobenzene (DCNB), biphenyl (BPh) and acenaphthene (ACNP) in environmental water samples by using head space technique prior to detection by GC-MS. The results were compared to those obtained from a commercial PDMS-SPME coated fiber, which is frequently used for the extraction of traces compounds reported in the literature [18].…”

A new polyethylene glycol fiber prepared by coating porous zinc electrodeposited onto silver for solid-phase microextraction of styrene

“…However, most organic compounds cannot be adsorbed on the film surface. To improve the adsorption efficiency, sol-gel has been introduced as the coating material due to the high porosity and large surface area of the sol-gel polymeric network [15,16]. In addition, it expresses high thermal stability and strong adhesion on the modified substrate [17].…”