Novel poly (N-methacryloyl-L-alanine acid) grafted chitosan microspheres based solid-phase extraction coupled with ICP-MS for simultaneous detection of trace metal elements in food.

ABSTRACT: Poly (N-methacryloyl-L-alanine acid) grafted tartaric acid-crosslinked chitosan microspheres (PNMA-TACS) were successfully synthesized and employed as a novel adsorbent for the separation and enrichment of metal ions in the food system. PNMA-TACS microspheres-based solid phase extraction (SPE) was coupled with ICP-MS for accurate quantification of trace V(V), Cr(III), As(III), Pb(II), Cd(II) and Cu(II). The obtained PNMA-TACS microspheres were characterized, and parameters influencing the method were optimized. Under optimal conditions, the calibration curves for Cu(II) and V(V) were linear within 0.01-30 μg L^-1, the linear ranges of Cr(III), As(III), Pb(II) and Cd(II) were 0.01-15 μg L^-1, and the detection limit of the developed approach was 1.1-3.7 ng L^-

SUBMITTER: Cao Y 

PROVIDER: S-EPMC10739841 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature