Combination of supramolecular solvent-based microextraction and ultrasound-assisted extraction for cadmium determination in flaxseed flour by thermospray flame furnace atomic absorption spectrometry

Rosehip (Rosa canina L.) Meal as a Natural Antioxidant on Lipid and Protein Quality and Shelf-Life of Polyunsaturated Fatty Acids Enriched Eggs

“…However, rosehip meal was added as a natural source of antioxidants and it was expected to be scarce in fat and protein content, but rich in polyphenols and antioxidant capacity. Previous investigations reported that the chemical composition determined in supplements such as flaxseed and rosehip meal differ due to their oil extraction method [ 23 ], harvest conditions and period [ 6 ], soil type [ 24 ], other climatic factors, or the cultivation country [ 25 ]. In a recent study on rosehip meal [ 26 ], harvested in Bulgaria, it was reported that the TAC was 9.436 mM Trolox, the TPC was only 16.52 mg GAE/g, and there were no flavonoids, which is very low compared with the chemical composition presented in the current study.…”

The use of ultrasound in the South Cone region. Advances in organic and inorganic synthesis and in analytical methods

“…The proposed procedure was a valid alternative with the advantages of short analysis time, low cost and reagent consumption [87] . Other investigations were discussed in Table 1 , which describes the devices used and, in some of them, the effects of ultrasound on extraction efficiency [88] , [89] , [90] , [91] . On the other hand, some investigations in metal extractions were reported in the literature, in which different extraction methodologies using ultrasound energy, microwave irradiation [92] , [93] and vortex [94] were compared.…”

“… A higher temperature than 50 °C promoted: decreased of the surface tension of the extraction phase increased of vapour pressure favoured reduction of shock waves [87] Cadmium Flaxseed flour UAE-SM-DLLME ES:1.5 mol L −1 HNO 3 acid extract with dodecanoic acid/THF supramolecular solvent diethyl dithiophosphate as a chelating agent 200 mg, 20.0 mL of 1.5 mol L − 1 HNO 3 , sonicated (USB) for 20 min. This extraction combined with supramolecular preconcentration The efficiency of extraction depends cavitation efficiency the leaching solvent, the position of the sample within the bath, the extraction time [88] As, Cd, Hg, Pb, Se, and V Animal and plant UAE ES: NADES 90 mg of the samples, 9 mL of NADES, sonicated (USB) Model Q3.0/40A, Eco-Sonics, Indaiatuba, São Paulo, Brazil, 40 kHz for 45 min. High values of acoustic energy (UP and cup horns) generated a more effective mass transfer action.…”

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

“…Lemes et al 86 used a thermospray flame furnace device to measure concentrations of Cd in flaxseed flour by AAS. Most of the work described was for the sample preparation but with an LOD of 0.10 μg L −1 and a short sample preparation, the procedure was considered to be simpler, faster, low-cost and environmentally friendly compared to alternatives using acid digestion and ETAAS or ICP-MS.…”