Quantification of cylindrospermopsin, anatoxin-a and homoanatoxin-a in cyanobacterial bloom freshwater using direct injection/SPE coupled with UPLC-MS/MS.
Cyanotoxins
Harmful algal blooms
Hepatoxins
Neurotoxins
Occurrence
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
20 Aug 2020
20 Aug 2020
Historique:
received:
12
02
2020
revised:
23
04
2020
accepted:
24
04
2020
pubmed:
20
5
2020
medline:
11
7
2020
entrez:
20
5
2020
Statut:
ppublish
Résumé
Analytical methods based on direct injection (DI) and solid phase extraction (SPE) coupled with ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC- MS/MS) were developed for the determination of anatoxin-a (ATX-a), cylindrospermopsin (CYN), and homoanatoxin-a (HATX-a) in freshwater samples impacted with cyanobacterial blooms. The presence of CYN in freshwater samples was detected and quantified based on direct injection method, while ATX-a and HATX-a could be determined by both DI and SPE-based methods. Matrix effects (ME) on the signal intensity of the cyanotoxins were systematically evaluated for both direct injection and SPE extract samples. CYN, ATX-a, and HATX-a suffered a significant suppression during UPLC-MS/MS. The selection of internal standards (ISs) for compensating/correcting the losses of target cyanotoxins during sample preparation and matrix effects in UPLC-MS/MS analyses were systematically evaluated. Acetaminophen-d
Identifiants
pubmed: 32428751
pii: S0048-9697(20)32531-6
doi: 10.1016/j.scitotenv.2020.139014
pii:
doi:
Substances chimiques
Alkaloids
0
Bacterial Toxins
0
Bridged Bicyclo Compounds, Heterocyclic
0
Cyanobacteria Toxins
0
Microcystins
0
Tropanes
0
homoanatoxin-a
0
cylindrospermopsin
2JIZ556BA3
Uracil
56HH86ZVCT
anatoxin a
80023A73NK
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
139014Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.