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Table 2 Recovery and repeatability data for analysis of methylparaben (MeP), ethylparaben (EtP), and n-propylparaben (n-PrP) from spiked water and saliva simulant

From: Examination of paraben release from baby teethers through migration tests and GC–MS analysis using a stable isotope dilution assay

Compound

Spiking concentration (µg 100 mL−1)

Recovery (mean ± SD, %)

Repeatability (RSD, %)

Water

 MeP

76

93 ± 3.9

4.2

 EtP

75

98 ± 3.1

3.2

 n-PrP

75

97 ± 2.4

2.4

Saliva simulant

 MeP

76

99 ± 1.0

1.0

 EtP

75

94 ± 0.5

0.5

 n-PrP

75

95 ± 1.0

1.1

  1. Repeatability expressed as relative standard deviation (RSD). Calculated from five independently spiked solutions each