Laserfiche WebLink
QUALITY ASSURANCE. LABORATORY <br />QUALITY CONTROL DATA REPORT <br />NOVEMBER 16, 1992 <br />TREATEK, INC. <br />LOG #20179-92K THROUGH 20183-'92K <br />DATE EXTRACTED: NOVEMBER 10, 1992 -- TPH <br />DATE ANALYZED: NOVEMBER 10, 1992 - TPH <br />ANALYSES PREP/ANALYSIS <br />LCS <br />SPIKE <br />DUPLICATE <br />METHOD <br />% RECOVERY <br />%RECOVERY <br />RPD <br />TPH 3550/DHS EXT <br />100% <br />108% <br />3% <br />YVETTE J. LIEBESMAN <br />QA SPECIALIST <br />WMLITY CONTROL TERMINOLOGY <br />•LCS - LABORATORY CONTROL STANDARD REPORTED AS % RECOVERY OF AN INDEPENDENT STANDARD CARRIED THROUGH ALL <br />SAMPLE PREPARATION PROCEDURES TO VERIFY METHOD PERFORMANCE ACCEPTABLE RANGE IS BASED ON HISTORICAL CONTROL <br />DATA, BUT IS GENERALY WITHIN A 80%-120% RECOVERY RANGE <br />•SPIN= - ENVIRONMENTAL SAMPLE IS MATRIX SPIKED WITH METHOD COMPOUNDS AND % RECOVERY OF CONCENTRATION SPIKED <br />INTO SAMPLE IS CALCULATED REPORTED AS % RECOVERY ACCEPTABLE RANGE FOR "NORMAL MATRIX SAMPLE" IS BASED ON <br />HISTORICAL LABORATORY CONTROL DATA, BUT IS GENERALLY WITHIN A 75%-125% RECOVERY RANGE <br />•SURROGATES - COMPOUNDS REPRESENTATIVE OF A GROUP OF COMPOUNDS. SURROGATES ARE SPIKED INTO ENVIRONMENTAL <br />SAMPLES AND % RECOVERY OF CONCENTRATION SPIKED IS CALCULATED AND REPORTED. ACCEPTABLE RANGE VARIES DEPENDING <br />ON SAMPLE MATRIX AND ANALYSIS METHOD. <br />