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W 1171 "M- MMU IMM, FIR i <br /> MWO-9 <br /> t' <br /> §R_..CWN_AND CALDWELL&NA_�L I IC&LABORATORIES <br /> BATCH Qc REFORT <br /> Accuracy: The abiliI]efinitions and 'ferrrls <br /> ty of a proectiur^to d <br /> analyte. etemaine the'true"cittion of an <br /> Batch: A group of samples analyzed <br /> ren encs and' sequentially using the saint calibration curve, <br /> $ tnstmment. <br /> I.aboratary Control Laboratory reagent water <br /> Standard(LC5 : spiked with known compounds and suhjected <br /> to the same prnoedures as the samples. The LCS thus indicates the encu <br /> of the analytical method and,because it is <br /> than the standard used fo c librate the Prepaxod from a ditl'erentsoanc <br /> check the calibration. �strument,it also serves to double. <br /> LC RcuIt Laboratory result of an LCS analysis. <br /> a LT Result Expected result,or true value,of the LCS analysis. <br /> Matrix QC: <br /> t <br /> analyses,'U gnttrol tests Performed <br /> on actual client <br /> samples. nd most inorgarric <br /> sample. For most or ' uses a pair of duplicate sslmples¢.nd a spiked <br /> samples(dupifcate garic analyms,the laboratory uses a pair of spiked <br /> �.' spr'tces;. <br /> Pe.'rcent Recovery: The <br /> ~ <br /> Fol 'ES,the percent reof eccovery cal . <br /> LC=LT x 100. calculation is <br /> For strike recaveties,the <br /> liar-Samnle r-�Percentrewl. calailatiion is <br /> — — ationl x 100 <br /> Spike Amount <br /> - Peron: The reproducibility of a <br /> procedure lyses performed on either oaf the samfmted e sare, la t� <br /> F <br /> nu duplicate spikes. p pair of <br /> Rl, R2 Result: Result of the analysis of <br /> the <br /> Fist anaiysis of the sarnPl;e d te R2 Its uots of a arrresportple din dila R1 In <br /> �- determine precisic a. b'duplicate;used to <br /> Relative Percent <br /> Difference(RPD)• Calculated ung Ow of the following: <br /> .�, (R —z 2 f -S23 z loo <br /> S Bar Result: { 1 S )-2 <br /> S + 2 <br /> The average of spike analysis=ults. - - <br /> -- <br /> S 1, S2 Result: Result of the analysis of replicate en <br /> ! spike of the sample and S2 the d spikeed ; determine with S <br /> used to � <br /> s <br /> 6 and accuracy, <br /> True value: <br /> i t The theoretical,or expected;result of a spike sample analysis. <br /> ... <br /> MEN <br /> i <br /> t �! <br /> !!C.knulvrirrr! <br />