Determination of Organophosphorus Esters in Fall Protection Equipment by Accelerated Solvent Extraction and Solid-Phase Extraction Coupled with LC-MS/MS Detection

Table 1

The spike recoveries and LODs of OPEs.

Analyte	Spiked with 5 ng/g				Spiked with 10 ng/g				Spiked with 50 ng/g				LOD (ng/g)
	Plastic material		Textile material		Plastic material		Textile material		Plastic material		Textile material		Plastic material	Textile material
	Recovery (%)	RSD (%)	Recovery (%)	RSD (%)	Recovery (%)	RSD (%)	Recovery (%)	RSD (%)	Recovery (%)	RSD (%)	Recovery (%)	RSD (%)
TMP	77.6	2.1	82.5	2.8	65.8	2.9	88.2	1.8	69.5	1.8	82.3	2.1	1.25	0.63
TEP	68.1	3.9	67.3	3.5	72.9	3.5	72.5	2.9	70.1	0.8	70.6	3.5	0.26	0.13
TPrP	85.7	1.2	99.6	2.4	90.2	2.8	92.3	2.4	79.2	2.6	82.3	1.8	0.06	0.03
TnBP	72.4	1.9	80.7	3.5	75.8	2	82.4	0.9	86.7	1.8	102	0.9	0.06	0.03
TiBP	75.7	5.1	108.5	5.6	102	1.8	85.9	1.5	75.3	3.5	88.5	2.3	0.03	0.015
TEHP	69.5	4.4	76.9	4.2	84.3	2.4	100.2	2.1	75.7	5.7	89.1	1.9	0.15	0.08
TBEP	75.8	2.7	80.2	3	92.4	6.7	71.6	5.8	78.3	2.6	75.7	5.2	0.03	0.015
TCPP	105.4	3.5	98.5	2.8	91	1.9	83.7	1.6	104.5	1.8	87.6	1.2	0.39	0.19
TCEP	81.5	4.5	85.3	6.8	88.9	10.1	112.6	8.6	100.4	7.6	102.8	9.5	0.42	0.21
TDCPP	65.2	8.1	72.4	7.5	78.6	3.6	79.5	3.1	74.7	2.6	88.2	2.3	0.23	0.12
TPhP	73.7	11.2	91.3	8.2	108	1.6	98.5	2.3	78.5	7.4	92.3	6.8	0.23	0.12
TMPP	83.4	2.3	75.8	3.5	88.9	2.9	85.2	1.5	63.7	5.1	74.2	5.2	0.04	0.02
CDPP	71.6	5.4	100.5	4.2	114	2.1	103	1.8	78.7	2.3	80.8	2	1.33	0.67
EHDPP	93.2	4.8	88.3	5.8	87.8	7.8	77.5	4.6	85.9	5.8	101	3.5	0.05	0.026