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- <br />� a <br /> fAt?&ONYF.i57lL <br /> AXk11 PfTFrOLEflY M LABORATORIES, INC. <br /> A A EQLIH,REQ.CHEM.ENQR. <br /> 4100 PIERCE=RD., BAKE=RSFIELD,CALIFORNIA 93308 PHONE 327.4911 <br /> TPH DIESEL <br /> C� rivy Control Date <br /> Darras and Moore <br /> 9300 Tech Center Dr. Ste. 100 <br /> Sacrarr�en*,o, CA 95828 Tal Spike IB: O-Cctw <br /> Attention: 17rtane Balch Analysis L'atr: ns-Gct-89 <br /> (hits: rg/g <br /> Quality Control <br /> for Lab Nos: 78Z, -18, 7622-19, 7622-20, 7622-?1, 7622-23 <br /> 7622-2.1, 7622.25 <br /> One sample in t14f",Ty is selected as a representative <br /> smatrix which is <br /> eed. The pe mage recovery (% Rec) of thF spike is a relative <br /> measure of ttp- aaa,1rac7 of the analysis. The comparison of the spike <br /> with a duplirate.s},ike is a measure of the relative pr, <br /> analysis. a£ the_. analysis. <br /> Conc. Conc. Asp <br /> Const-anent in Spike Added to Spike Spike Spike <br /> _ <br /> -------------------- <br /> - - _-- -- Sample Spike % Ree_- % Rec RFD <br /> -------------------------- _ --------- --- --- <br /> TF-4 Diesel <br /> 0.00 100.01 86.72 92.37 6.31 <br /> i <br /> Qc Conments: <br /> Recovery -•---_Spikw__i-rtrcpl�s Crnr_rntration - Sample Concentration <br /> ; <br /> ------------------------------------- <br /> (Concntration of Spike) -- X 1017 <br /> RPB (Relative Percent Differnncp) = <br /> Spiked-Sample-Conc.-`_tipf ked-D'pli'nte-Sample-G.)nc. <br /> (Average r~ -- %� I00 <br /> ,,, !;- ..ancentr:�ti��n of Spikes) . <br />