Table 1.

Detection parameters for indirect determination of MCPDEs and GEs by GC/MS.

Analytea	Retention time [min]	Quantifier ion Q1 [m/z]	Qualifier ion Q2 [m/z]	Relative ion intensitiesb [%]
3-MCPD	16.64	147	196	22 ± 4
2-MCPD	17.36	196	198	33 ± 5
3-MBPD	18.89	240	147	18 ± 3
3-MCPD-d5	16.55	150	201	22 ± 4
2-MCPD-d5	17.26	201	203	33 ± 5
3-MBPD-d5	18.80	245	150	18 ± 3

^aAnalytes are the PBA derivatives of 3-MCPD, 2-MCPD, 3-MBPD and their stable isotope labelled analogues.

^bRelative intensities are expressed as a percentage of the base peak (highlighted in bold).