. Author manuscript; available in PMC: 2019 Jul 18.

Published in final edited form as: J Expo Sci Environ Epidemiol. 2017 Oct 11;28(2):101–108. doi: 10.1038/jes.2017.28

Table 2.

Detection frequency (DF) and mean, median and geometric mean (GM) serum levels (ng/mL) of bisphenol S, benzophenone-1 and monpentyl phthalate in twenty maternal sera analyzed by LC-MS/MS.

	LC-QTOF/MS	LC-MS/MS
Analyte	DF (%)	DF (%)	Mean	Median	GM
Bisphenol S^*	50	85	0.153	0.153	0.087
Benzophenone-1^*	30	100	0.110	0.095	0.097
Monopentyl phthalate^**	20	15	0.017	0.014	0.016

LOD: 0.005 ng/mL

^**

LOD: 0.01 ng/mL