The characteristics of calibration curves shown in Table 2
were obtained under optimized conditions. Linearity was
observed in the range of 2–400 _gL−1 for MCPs, 1–200 _gL−1
for DCPs, 0.04–10_gL−1 for TCPs and 0.02–5_gL−1 for
TeCPs and PCP. Correlation coefficients (r2) ranged from 0.9991
to 0.9999 with the internal standard and from 0.9986 to 0.9998
without the internal standard. The repeatability was studied by
extracting the spiked water sample (concentration of MCPs
200_gL−1, DCPs 100 _gL−1, TCPs 4.00 _gL−1 and TeCPs
and PCP 2.00_gL−1). The relative standard deviations (RSDs)
were calculated to be in the range of 0.6–4.7 and 1.7–7.1% with
and without the use of internal standard (n = 7), respectively. The
limit of detections (LODs), based on signal-to-noise ratio (S/N)
of 3 ranged from 0.010 to 2.0 _gL−1. The enrichment factors
and the recovery of CPs were from 287 to 906 and 28.7 to 90.6%,
respectively.
The characteristics of calibration curves shown in Table 2were obtained under optimized conditions. Linearity wasobserved in the range of 2–400 _gL−1 for MCPs, 1–200 _gL−1for DCPs, 0.04–10_gL−1 for TCPs and 0.02–5_gL−1 forTeCPs and PCP. Correlation coefficients (r2) ranged from 0.9991to 0.9999 with the internal standard and from 0.9986 to 0.9998without the internal standard. The repeatability was studied byextracting the spiked water sample (concentration of MCPs200_gL−1, DCPs 100 _gL−1, TCPs 4.00 _gL−1 and TeCPsand PCP 2.00_gL−1). The relative standard deviations (RSDs)were calculated to be in the range of 0.6–4.7 and 1.7–7.1% withand without the use of internal standard (n = 7), respectively. Thelimit of detections (LODs), based on signal-to-noise ratio (S/N)of 3 ranged from 0.010 to 2.0 _gL−1. The enrichment factorsand the recovery of CPs were from 287 to 906 and 28.7 to 90.6%,respectively.
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