Table 1.

Mass spectrometry parameters of 25 target QACs in multiple reaction monitoring (MRM) mode

Analyte		Precursor ion (m/z)	Quantitative ion	Qualitative ion	Declustering potential (V)	Collision energy (eV)
ATMACs	C10	200.2	60	57	120	29
	C12	228.3	60	57	120	31
	C14	256.4	60	57	120	32
	C16	284.4	60	57	120	34
	C18	312.5	60	57	120	36
	C20	340.5	60	57	120	38
	C22	368.4	60	57	120	40
BACs	C8	248.2	91.0	58.1	120	28
	C10	276.3	91.0	58.1	120	30
	C12	304.2	91.0	58.1	120	32
	C14	332.4	91.0	58.1	120	36
	C16	360.5	91.0	58.1	120	38
	C18	388.5	91.0	58.1	120	40
DADMACs	C8:C8	270.4	56.9	158	180	34
	C10:C10	326.4	56.9	186	190	36
	C12:C12	382.5	56.9	214	190	40
	C14:C14	438.6	56.9	242	190	41
	C16:C16	494.7	56.9	270	190	46
	C18:C18	550.8	56.9	298	190	50
	C8:C10	298.4	56.9	158	190	35
	C10:C12	354.5	56.9	186	190	36
	C12:C14	410.6	56.9	214	190	40
	C14:C16	466.6	56.9	242	190	43
	C16:C18	522.7	56.9	270	190	50
	C18:C20	578.8	56.9	298	190	52
BAC-D7-C18(Internal Standard)		339.5	97.6	57.7	120	32