Determination of phthalic acid esters and di(2-ethylhexyl) adipate in fish and squid using the ammonium formate version of the QuEChERS method combined with gas chromatography mass spectrometry was written by Sambolino, Annalisa;Ortega-Zamora, Cecilia;Gonzalez-Salamo, Javier;Dinis, Ana;Cordeiro, Nereida;Canning-Clode, Joao;Hernandez-Borges, Javier. And the article was included in Food Chemistry in 2022.Product Details of 84-61-7 This article mentions the following:
In the present study, the ammonium formate version of the QuEChERS method, considered highly advantageous in relation to instrument maintenance and other issues, was applied for the first time to extract a group of twelve phthalic acid esters (PAEs, i.e. di-Pr phthalate, DPP; diisobutyl phthalate, DIBP; di-Bu phthalate, DBP; diisopentyl phthalate, DIPP; di-n-pentyl phthalate, DNPP; dihexyl phthalate, DHP; Bu benzyl phthalate, BBP; dicyclohexyl phthalate, DCHP; di(2-ethylhexyl) phthalate, DEHP; di-n-octyl phthalate, DNOP; diisononyl phthalate, DINP; and diisodecyl phthalate, DIDP) and one adipate (di(2-ethylhexyl) adipate, DEHA) from two species of fish (Scomber colias and Katsuwonus pelamis) and one of squid (Loligo gahi). The method was validated in terms of linearity, trueness and matrix effects. Determination coefficients (R2) for matrix-matched calibration curves were higher than 0.99 in all cases, being the lowest calibration levels in the range 0.5-10 ng/g. Mean recovery values were between 70 and 117% with relative standard deviation values â?0%. Matrix effects were soft (between -20 and +20%) for most analytes and matrixes, except in squid samples, which was mostly medium with a moderate ion suppression. The anal. of 10 samples of each type showed the presence of DIBP, DBP and DEHP at concentrations up to 44.2 ± 2.1 ng/g of wet weight in some of the samples and species, still not representing concerning values when considering the daily intake of such species of seafood in the human diet (tolerable daily intake -TDI- values were not exceeded). The results demonstrated that the ammonium formate version of the QuEChERS method can be applied with success for the extraction and determination of the selected PAEs and DEHA in fish and squid samples. In the experiment, the researchers used many compounds, for example, Dicyclohexyl phthalate (cas: 84-61-7Product Details of 84-61-7).
Dicyclohexyl phthalate (cas: 84-61-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 84-61-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics