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Sequoia 680 Chesapeake Drive Redwood GM CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 4D 404 fJ Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> a <br /> Blaine Tech Services, Inc Client Project ID Shell St6ckt6d/970905-17I J h <br /> :{1680 Rogers Ave Matrix Liquid <br /> '.San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9709144-01-03 Reported Sep 10, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Methanol <br /> OC Batch#: GC0906971SHSHSB <br /> Analy Method ISHS <br /> Prep Method HS <br /> Analyst T Tran <br /> MS/MSD# 9708G3310 <br /> Sample Cone N D <br /> Prepared Date 9/6/97 <br /> Analyzed Date. 9/6/97 <br /> Instrument I D #: GCv1 <br /> Cone Spiked: 8 0 mg/L <br /> Result. 67 <br /> 46S % Recovery 84 <br /> Dup. Result 70 <br /> MSD % Recov 88 <br /> RPD. 44 <br /> RPD Limit: 0-50 <br /> LCS #- BLK090697 <br /> Prepared Date- 9/6/97 <br /> Analyzed Date: 9/6/97 <br /> Instrument I D #: GCv1 <br /> Cone. Spiked 8 0 mg/L <br /> LCS Result 74 <br /> LCS % Recov 93 <br /> 50-150 <br /> LCS 50-150 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> 01 A ALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> egg y interference,the LCS recovery is to be used to validate the batch <br /> IP t Manager **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9709144 BLA 43> <br />