Table 5.

Determined Concentration of Select PFAS in DMSO and EtOH Solutions.

DTXSID	Common Name	Solvent Set	Expected Conc (mM)	Mean Measured Conc (mM)*	Deviation of Mean Measured vs Expected Conc(%)
DTXSID4059916	Perfluorobutanoic acid (PFBA)	DMSO1	30	22.8 ± 1.1	−23.9%
		DMSO2	30	23.2 ± 1.2	−22.7%
		EtOH	20	19.2 ± 0.6	−3.8%
DTXSID6062599	Perfluoropentanoic acid	DMSO1	20	17.50 ± 0.94	−12.5%
		DMSO2	30	24.69 ± 0.82	−17.7%
		EtOH	20	19.63 ± 0.90	−1.8%
DTXSID8031865	Perfluorooctanoic acid (PFOA)	DMSO1	30	26.1 ± 0.6	−13.0%
		DMSO2	30	24.8 ± 1.0	−17.5%
		EtOH	20	21.8 ± 0.8	8.9%
DTXSID90868151	Perfluorotridecanoic acid	DMSO1	20	3.03 ± 0.47	−84.80%
		DMSO2	5	4.37 ± 0.66	−12.60%
		EtOH	20	18.21 ± 1.57	−8.90%
DTXSID3059921	Perfluorotetradecanoic acid	DMSO1	10	4.55 ± 0.50	−54.5%
		DMSO2	5	7.53 ± 1.22	50.5%
		EtOH	20	12.48 ± 1.62	−37.6%
DTXSID8059920	Perfluoroheptanesulfonic acid	DMSO1	30	28.57 ± 2.18	−4.8%
		DMSO2	20	16.93 ± 1.52	−15.4%
		EtOH	20	20.69 ± 2.40	3.4%
DTXSID6067331	6:2 Fluorotelomer sulfonic acid	DMSO1	30	21.08 ± 3.15	−29.7%
		DMSO2	30	30.61 ± 3.71	2.0%
		EtOH	20	24.81 ± 4.32	24.1%
DTXSID3031864	Perfluorooctanesulfonic acid (PFOS)	DMSO1	30	11.8 ± 1.2	−60.8%
		DMSO2	30	18.6 ± 1.5	−38.0%
		EtOH	20	16.1 ± 1.7	−19.3%
DTXSID70366226	Perfluoropentanamide	DMSO1	30	24.9 ± 2.5	−20.5%
		DMSO2	30	21.8 ± 0.6	−37.6%
		EtOH	20	17.7 ± 1.1	−13.2%
DTXSID1062122	4:2 Fluorotelomer alcohol	DMSO1	30	31.3 ± 2.5	4.2%
		DMSO2	30	29.2 ± 1.2	−2.8%
		EtOH	20	22.0 ± 1. 0	10.2%
DTXSID3038939	Perfluorooctanesulfonamide	DMSO1	30	32.77 ± 1.30	9.2%
		DMSO2	30	23.70 ± 1.04	−21.0%
		EtOH	20	19.21 ± 1.09	−4.0%

^*Actual concentrations shown as mean ± standard deviation in mM notation. Three to ten technical replicates were analyzed per stock solution.