Non-chromatographic arsenic speciation analyses in wild shrimp (Farfantepenaeus brasiliensis) using functionalized magnetic iron-nanoparticles

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…Although this approach is limited in the number of species that can be determined, it has the advantages of (a) avoiding the inherent dilution of an HPLC procedure, and (b) consenting the possible use of measurement techniques other than ICP-MS. Such procedures include the determination of iAs species in shrimp, 63 iAs in dairy products, 64 As III in water, urine and fruit juice, 65 Cr III in tap water, 66 Mn species in beverages, 67 iSb in rice wine, 68 iSe species in dairy products, 69 Se IV in foods, 59 and V V in water. 70…”

Atomic Spectrometry Update: review of advances in elemental speciation

“…The precision between sample replicates was better than 7%. An iron-magnetic nanomaterial functionalised with dimethyl triamine-pentamethylene phosphonic acid was used for non-chromatographic speciation of As in wild shrimp ( Farfantepenaeus brasiliensis ) by ICP-MS. 72 This material was used for the SPE for As species, optimisation using central composite design indicated a pH 4.0, 15 min extraction time, and 20 mg of mass of material for optimal extraction. The iAs extracted using the nanoparticles gave concentrations of between 20 and 100 μg kg −1 in the evaluated samples.…”

Enantioseparation in high performance liquid chromatography: preparation and evaluation of a vancomycin-based chiral stationary phase via surface-initiated atom transfer radical polymerization

“…[12][13][14] The separation techniques of chiral compounds are mainly divided into two categories. One is non-chromatographic approaches, such as crystallization, chiral extraction and sensor methods, 15,16 and the other is chromatographic methods, mainly including gas chromatography (GC), thin layer chromatography (TLC), high performance liquid chromatography (HPLC), capillary electrochromatography (CEC), supercritical uid chromatography (SFC) and so on. [17][18][19][20] Among them, HPLC has the advantages of fast separation, high sensitivity, strong reproducibility and wide application elds, playing an increasingly important role in the detection and separation of racemic drugs.…”