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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364.9600 FAX(650)364-9233 <br /> 4114 N.Wi91t Lane Walnut Creek,CA 94598 (510) 989.9600 FAX(510)988-9673 <br /> Analytical <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> . ................. <br /> ............ . <br /> ........... <br /> X,Blaine Tech Services, Inc. ..............X <br /> ............ <br /> Client Project I D: Chevron 9-8632 970902-F2 <br /> ,,. <br /> 1680 Rogers Ave. Matrix: Liquid <br /> Jose, CA 95112 <br /> .:".'Attention: Fran Thie <br /> Work Order#: 9709126-04 Reported: Sep 17, 1997'" <br /> XX <br /> ......................... ........ <br /> ............. <br /> ....................... <br /> ... ................. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Methanol <br /> OC Batch#: GCO906971SHSHSB <br /> Analy. Method: ISHS <br /> Prep. Method: HS <br /> 1. <br /> Analyst: T.Tran <br /> MS/MSD #: 970SG3301 <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: 6.7 <br /> IMS % Recovery: 84 <br /> Dup. Result: 7.0 <br /> MSD % Recov.: 88 <br /> RPD: 4.4 <br /> RPD Limit: 0-40 <br /> ........ . .......... -x x <br /> x <br /> ...... ... ..... ...... <br /> _0 <br /> X <br /> LCS #: BLK090897 <br /> Prepared Date: 9/8/97 <br /> Analyzed Date: 9/8/97 <br /> Instrument I.D.#: GCV1 <br /> Cone.Spiked: 8.0 mg/L <br /> LCS Result: 8.1 <br /> LCS % Recov.: 101 <br /> MS/MSD 50-150 <br /> LCS 70-130 <br /> Control Limits <br /> Please Note: <br /> 7 <br /> Q I ANALYTICAL The LCS is a control Sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compound's 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 /> interference,the LCS recovery is to be used to validate the batch. <br /> Penner i <br /> n <br /> qProject Manager MS=Matrix Spike MSD=MS Duplicate,RPD=Relative%Difference 9709126.131-A <5> <br /> 7 <br />