First report of detection of microcystins in farmed mediterranean mussels Mytilus galloprovincialis in Thermaikos gulf in Greece

Table 4 LC-Orbitrap MS/MS data for the studied microcystins

Microcystins	Molecular Formula	tR (min)	Monocharged ion [M+H]⁺				Bicharged ion [M+H]²⁺
Microcystins	Molecular Formula	tR (min)	Theor. accurate mass	Exp. accurate Mass	Δ (ppm)	RDBE	Theor. accurate mass	Exp. accurate mass	Δ (ppm)	RDBE
MC-RR	C₄₉H₇₅N₁₃O₁₂	6.63	1038.5731	1038.5743	1.1554	17.5	519.7902	519.7910	1.609	18
Fragment	C₉H₁₁O						135.0806	135.0807	0.7403	4.5
MC-LR	C₄₉H₇₄N₁₀O₁₂	7.56	995.5560	995.5572	1.151	17.5	498.28166	498.28170	0.0803	17
Fragment	C₉H₁₁O		135.0806	135.0808	1.4806	4.5
MC-YR	C₅₂H₇₂N₁₀O₁₃	7.46	1045.5353	1045.5372	1.8380	21.5	523.2713	523.2725	0.5813	21
Fragment	C₉H₁₁O		135.0806	135.0808	1.4806	4.5

ISSN: 2241-5793