Table 1.

MRM parameters, LOD, LOQ, and linear range for quantification of 16 phenolic compounds and the internal standard (IS).

Name	Precursor (m/z)	Production (m/z)	C. E. (eV)	R.T. (min)	LOD (ng/mL)	LOQ (ng/mL)	Linear Range (ng/mL)	R 2
Guaiacol	124	109	15	11.307	0.33	1	1–1000	0.9998
d3-guaiacol (IS)	127	109	15	11.292	0.33	1	1–1000	0.9998
4-methylguaiacol	138	123	15	12.326	0.33	1	1–1000	0.9998
Syringol	154	139	15	15.320	0.33	1	1–1000	0.9990
4-methylsyringol	168	153	15	16.081	1	3.3	3.3–1000	0.9981
p-cresol	108	107	15	12.712	0.33	1	1–1000	0.9995
o-cresol	108	107	15	13.529	0.33	1	1–1000	0.9996
m-cresol	108	107	15	13.611	0.33	1	1–1000	0.9992
Phenol	94	66	15	12.754	0.33	1	1–1000	0.9993
4-ethylguaiacol	152	137	15	13.101	0.33	1	1–1000	0.9999
Eugenol	164	149	10	14.447	1	3.3	3.3–1000	1.0000
Isoeugenol	164	149	10	16.110	1	3.3	3.3–1000	0.9998
2,4-dimethylphenol	122	107	15	13.501	0.33	1	1–1000	0.9996
4-ethylphenol	122	107	15	14.442	0.33	1	1–1000	0.9996
4-n-propylphenol	136	107	15	15.284	0.33	1	1–1000	0.9997
Vanillin	152	151	15	18.183	1	3.3	3.3–1000	0.9999
Acetovanillone	166	151	15	18.668	1	3.3	3.3–1000	0.9999