J 2016

A Collaborative Evaluation of LC-MS/MS Based Methods for BMAA Analysis: Soluble Bound BMAA Found to Be an Important Fraction

FAASSEN, Elisabeth J., Maria G. ANTONIOU, Wendy BEEKMAN-LUKASSEN, Lucie BLÁHOVÁ, Ekaterina CHERNOVA et. al.

Základní údaje

Originální název

A Collaborative Evaluation of LC-MS/MS Based Methods for BMAA Analysis: Soluble Bound BMAA Found to Be an Important Fraction

Autoři

FAASSEN, Elisabeth J. (528 Nizozemské království), Maria G. ANTONIOU (196 Kypr), Wendy BEEKMAN-LUKASSEN (528 Nizozemské království), Lucie BLÁHOVÁ (203 Česká republika, garant, domácí), Ekaterina CHERNOVA (643 Rusko), Christophoros CHRISTOPHORIDIS (300 Řecko), Audrey COMBES (250 Francie), Christine EDWARDS (826 Velká Británie a Severní Irsko), Jutta FASTNER (276 Německo), Joop HARMSEN (528 Nizozemské království), Anastasia HISKIA (300 Řecko), Leopold L. ILAG (752 Švédsko), Triantafyllos KALOUDIS (300 Řecko), Srdjan LOPICIC (688 Srbsko), Miquel LURLING (528 Nizozemské království), Hanna MAZUR-MARZEC (616 Polsko), Jussi MERILUOTO (246 Finsko), Cristina POROJAN (372 Irsko), Yehudit VINER-MOZZINI (376 Izrael) a Nadezda ZGUNA (752 Švédsko)

Vydání

MARINE DRUGS, BASEL, MDPI AG, 2016, 1660-3397

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.503

Kód RIV

RIV/00216224:14310/16:00089982

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000373701200014

Klíčová slova anglicky

6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC); seafood; phytoplankton; Daphnia magna; Liquid chromatography-tandem mass spectrometry (LC-MS-MS); beta-N-methylamino-l-alanine (BMAA); Internal standard

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 2. 3. 2017 12:24, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

Exposure to beta-N-methylamino-l-alanine (BMAA) might be linked to the incidence of amyotrophic lateral sclerosis, Alzheimer's disease and Parkinson's disease. Analytical chemistry plays a crucial role in determining human BMAA exposure and the associated health risk, but the performance of various analytical methods currently employed is rarely compared. A CYANOCOST initiated workshop was organized aimed at training scientists in BMAA analysis, creating mutual understanding and paving the way towards interlaboratory comparison exercises. During this workshop, we tested different methods (extraction followed by derivatization and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) analysis, or directly followed by LC-MS/MS analysis) for trueness and intermediate precision. We adapted three workup methods for the underivatized analysis of animal, brain and cyanobacterial samples. Based on recovery of the internal standard D(3)BMAA, the underivatized methods were accurate (mean recovery 80%) and precise (mean relative standard deviation 10%), except for the cyanobacterium Leptolyngbya. However, total BMAA concentrations in the positive controls (cycad seeds) showed higher variation (relative standard deviation 21%-32%), implying that D(3)BMAA was not a good indicator for the release of BMAA from bound forms. Significant losses occurred during workup for the derivatized method, resulting in low recovery (<10%). Most BMAA was found in a trichloroacetic acid soluble, bound form and we recommend including this fraction during analysis.