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Table 1 Analytical figures of merit of the developed method utilizing the Alu-Ni/GO/NiTAM-SPME fiber (n = 5)

From: Preparation of a new coating of graphene oxide/nickel complex on a nickelized metal surface for direct immersion solid phase microextraction of some polycyclic aromatic hydrocarbons

Compounds Analytical figures
LRa (µg L–1) Slope ± Unb R2c LODd (µg L–1) LOQe (µg L–1) RSDf (%) (at the concentration of 1 µg L–1) RSD (%) (at the concentration of 25 µg L–1) EFg ± RSD
Intra-day Inter-day After 1 month Single fiber Intra-day Inter-day After 1 month Single fiber
Naphthalene 0.50‒25.00 1218.60 ± 0.15 0.9913 0.15 0.50 2.21 3.75 0.51 3.58 0.32 1.80 0.17 2.21 83 ± 3
Acenapthene 0.50‒100.00 1495.20 ± 0.11 0.9938 0.05 0.16 2.44 5.95 0.39 5.51 0.53 3.10 0.26 3.30 124 ± 2
Fluorene 0.10‒200.00 2813.50 ± 0.09 0.9925 0.20 0.66 3.00 6.12 3.06 8.70 1.18 4.05 2.40 4.39 97 ± 7
Phenanthrene 0.10‒150.00 2277.90 ± 0.08 0.9933 0.03 0.10 4.82 5.91 4.13 6.05 1.96 2.38 1.62 3.05 104 ± 5
Anthracene 0.10‒200.00 4724.90 ± 0.05 0.9915 0.03 0.10 2.61 4.00 1.59 4.83 0.84 1.20 0.33 2.78 94 ± 2
Fluranthene 0.50‒200.00 1537.60 ± 0.09 0.9919 0.15 0.50 3.20 4.38 3.04 4.22 1.31 2.87 1.16 1.42 118 ± 3
Pyrene 1.00‒200.00 1812.60 ± 0.01 0.9912 0.30 1.00 4.35 7.29 2.98 6.48 2.94 4.09 2.13 3.90 164 ± 7
Chrysene 0.50‒150.00 2069.30 ± 0.06 0.9920 0.07 0.23 1.42 6.11 5.30 7.49 0.98 3.62 2.93 3.71 135 ± 4
  1. aLinear range
  2. bUncertainity
  3. cSquare of correlation coefficient
  4. dLimit of detection
  5. eLimit of quantification
  6. fRelative standard deviation
  7. gEnrichment factor