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. Author manuscript; available in PMC: 2020 Sep 16.
Published in final edited form as: Southeast Asian J Trop Med Public Health. 2020 May 19;51(1):77–87.

Table 2.

Percent recovery and relative standard deviation (RSD) of standard organophosphate (OP) pesticides in spiked meconium control samples analyzed by gas chromatography-mass spectrometry.

OP concentration (μg/g) Percent recovery Percent RSD
Chlorpyrifos 0.38–0.90 97.16–99.87 0.46–3.38
Demeton-s-methyl 0.77–1.79 96.36–99.56 0.35–1.96
Dichlorvos 1.92–4.49 99.14–100.07 0.68–1.48
Dimethoate 0.77–1.79 98.49–99.64 0.78–2.89
Ethion 0.77–1.79 97.62–101.11 0.99–2.69
Malathion 0.77–1.79 98.51–102.20 1.41–4.55
Omethoate 3.85–8.97 98.59–100.39 0.49–1.66
Pirimiphos-methyl 0.38–0.90 96.40–99.78 0.34–2.29
Pyrazophos 1.92–4.49 97.52–99.93 0.63–2.44
Tolclofos-methyl 0.38 –0.90 98.28–100.58 0.29–2.63