Laserfiche WebLink
t <br /> _ °`. � }` �. NlW W. ? „' {*` ' '� hrk -..�'.�' z+ 16 's' rflr "iygr - �'b'.",: �k&7Yf�.o'M'• -. y �: <br /> tv <br /> y <br /> t ' Jcel, ;. <br /> G <br />_.J#d?L.W:LYIIR[I2Y3i � �4, ,. 1 p4VmW+'I r�'•' q R�� V <br /> t <br /> SN <br /> BROWN AND <br /> 'Al-DWELL ANALYTICAL LABORATORIES <br /> BATCH QC REPORT <br /> Definitions and Terms <br /> Acm y" 'lie ability of a procedure to determine the'true'cancen=thn of an <br /> maw- <br /> Batch: A gaup of samples analyzed sequentially u=,g the same calibrat M curve, <br /> reagents,andinstrumcnt. <br /> Labcorreagent water spiked with knovM compowxb and subjocted <br /> Standard( Control to ft same reag as tate ks. The L.0 S thus indicates the aoaamcy <br /> ' (I,CS): to the same proaedtues from a diffmimt.lou ce <br /> of the analytiml ntetttod and,b�ecsuse it is prepared <br /> than the standard used to caMrate the Watnmtent,it also serves to double- <br /> . check he call]l i�ton. <br /> L.0 Result: Laboratory result of an LCS analysis. <br /> LT Result: Expel result or true value,of the L.CS analyser. <br /> Matrix QC; Quality control testa performed on actual client samples. For most inorganic <br /> N analym,the laboratory uses a pair of duplicate samples and a spikes <br /> sample. For most organic analYars,the laboratory uses a Fair of sped <br /> samples(duplicate Spam). <br /> Percent Recovery: The pmrentage of analyte rewvcred. <br /> For LCs,the percent recovery calculation is <br /> LC_LT x 100. <br /> For spike recoveries,the percent recovery calculatLIOn is <br /> 0 Bar <br /> x 100 <br /> Spike Amount <br /> leJ <br /> repr <br /> -rhe oduability of a pwce+dure demonstrated by the aunt between <br /> I r Pr inion performed on either dupficates of the same sample or a pair of <br /> analyses <br /> duplicate MAk+es. <br /> Rl,R2 Result: Ren It of the andlysis of repHMIC aliquot of a sample,with RI indicatatg <br /> the fm analysis of tine sample and R2 its corresponding duplicate:used to <br /> determine precision. <br /> Relative Percent Calculated using one of the following: <br /> '- Differeme(RPD): 100x I OQ X51 -S21 x 100 <br /> (RI +R2)_2 (51+S2)-2 <br /> S Bar Result The average of spilm analysis results. <br /> S 1; S2 Result-----------Result of the analysls cif-replicate spiked aliquots,-with s 1.in ons. -----= .--.-------------- <br /> spoe of the sample and 52 the second spike;used to determine Mcildon <br /> and accuracy. <br /> True value: The theoretical,or expected,result of a spfle sample analysis• <br /> - It l:.Irrrrlyfirld <br />