TY - JOUR
T1 - A feasible method for As speciation in several types of seafood by LC-ICP-MS/MS
AU - Schmidt, Lucas
AU - Landero, Julio Alberto
AU - Novo, Diogo La Rosa
AU - Duarte, Fabio Andrei
AU - Mesko, Marcia Foster
AU - Caruso, Joseph A.
AU - Flores, Erico Marlon Moraes
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/7/30
Y1 - 2018/7/30
N2 - A method for arsenic speciation in shark, shrimp, squid, oyster and scallop using liquid chromatography coupled to inductively coupled plasma triple quadrupole mass spectrometry (LC-ICP-MS/MS) was proposed. Suitable sensitivity and selectivity by LC-ICP-MS/MS were obtained using 10 mmol L−1 (NH4)2HPO4 diluted in 1% methanol (pH 8.65) as mobile phase. Recoveries from 90 to 104% for arsenobetaine (AsB), arsenite [As(III)], dimethylarsinic acid (DMA), monomethylarsonic acid (MMA) and arsenate [As(V)] were obtained for all samples. A certificated reference material was also analyzed and the sum of As species was in agreement with the total As concentration. Limits of quantification (LOQ) for AsB, As(III), DMA, MMA, and As(V) were 6, 30, 6, 12 and 26 ng g−1, respectively. Higher concentration of AsB was found in all seafood, while As(III) and DMA were found only in oyster. Arsenate was found in squid and scallops, and MMA was below the LOQ in all samples.
AB - A method for arsenic speciation in shark, shrimp, squid, oyster and scallop using liquid chromatography coupled to inductively coupled plasma triple quadrupole mass spectrometry (LC-ICP-MS/MS) was proposed. Suitable sensitivity and selectivity by LC-ICP-MS/MS were obtained using 10 mmol L−1 (NH4)2HPO4 diluted in 1% methanol (pH 8.65) as mobile phase. Recoveries from 90 to 104% for arsenobetaine (AsB), arsenite [As(III)], dimethylarsinic acid (DMA), monomethylarsonic acid (MMA) and arsenate [As(V)] were obtained for all samples. A certificated reference material was also analyzed and the sum of As species was in agreement with the total As concentration. Limits of quantification (LOQ) for AsB, As(III), DMA, MMA, and As(V) were 6, 30, 6, 12 and 26 ng g−1, respectively. Higher concentration of AsB was found in all seafood, while As(III) and DMA were found only in oyster. Arsenate was found in squid and scallops, and MMA was below the LOQ in all samples.
KW - Arsenic speciation
KW - Extraction
KW - Food safety
KW - Inductively coupled plasma triple quadrupole mass spectrometry
KW - Liquid chromatography
KW - Sample preparation
UR - https://www.scopus.com/pages/publications/85042292892
U2 - 10.1016/j.foodchem.2018.02.079
DO - 10.1016/j.foodchem.2018.02.079
M3 - Article
C2 - 29571485
AN - SCOPUS:85042292892
SN - 0308-8146
VL - 255
SP - 340
EP - 347
JO - Food Chemistry
JF - Food Chemistry
ER -