Sandimirov S. Screening studies of POP levels in fish from selected lakes in the Paz watercourse / In State of the environment in the Norwegian, Finnish and Russian border area. The Finnish Environment. Finland, Jyvaskyla: Kopijyva Oy. 2007, №6.

QA/QC DATA REPORT for metals in biota Appendix: Screening studies of POPs in fish from the Paz watercourse Table 1.15 Ingredient Procedu­ ral Blank, mg/kg Duplicate Difference, %D Matrix Spike Recovery, % R Detection Limit, mg/kg Certified Reference Material, mg/kg D ОR LM-2 SRM 2977 Certified Value Detected Value Certified Value Detected Value Hg < 0.003 11.8 92.3 0.003 4.64 ± 0.26 4.59 0.101 ± 0.004 0.103 %R= (( SSR-SR)/ SA)X100 SSR- Spiked Sample Result, SR- Sample Result, SA- Spike Added Control Limit %R= 80-120 % %D=((SR1-SR2 )/SR) X100 SR1 - Sample Result 1 SR 2 - Sample Result 2 SR=(SR1+SR2)/2 Control Limit %D= 20 % Table 1.16 Analytical methods in determination of metals Metals Sediment Biota Technique Method of analysis Detection Limit, mg/kg Technique Method of analysis Detection Limit, mg/kg Cd GFAA SW-846 #7131A 0.005 GFAA SW-846 #7131A 0.001 Cu FLAA SW-846 # 7210 1.5 FLAA SW-846 # 7210 0.20 Ni FLAA SW-846 #7520 5.0 GFAA SW-846 #7521 0.01 Pb FLAA SW-846 #7421 8.0 GFAA SW-846 #7420 0.01 Hg CVAA SW-846 #7471A 0.005 CVAA Russian 0.005 Li FLAA SW-846 #7430 4.0 - - - Zn FLAA SW-846 #7950 0.8 FLAA SW-846 #7950 0.10 Akvaplan-niva report APN 514-3365.02 52