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3.3 AnaMical Qualft Assurnnee <br /> In addition to routine calibration of the analytical instruments with standards and blanks� the analyst is <br /> required to run duplicates and spikes on 10 percent of the analyses to insure an added measure of <br /> precision and accuracy. Accuracy is also ve.-Mied through the following: <br /> 1. EPA and State certification programs. <br /> 2. Participation in an interlabofatory or'round-robin*quality assurance program. <br /> 3. Verification of results with an alternative method. For example,calcium may be determined by <br /> atomic absorption, ion chromatography, or titrimetric methods. Volatile organics may be <br /> determined through either purge and trap or liquid-liquid extraction methods. <br /> 3.4 Miscellaneous Checks of Accum <br /> Where trace analysis is involved,purity of the solvents,reagents,and gases employed is of great concern. <br /> Tle laboratory maintains a service contract on all major instrumentation; gas chromMograph. atomic <br /> at-wrption, ion c!iromatography, and total organic carbon analyzers are all-serviccd and maintained <br /> Tle above program is more than sufficient,1,jr most needs. Additional qu,%lity assurance,such as spikes <br /> and duplicates on all knalyses, will be provided if requesied. <br /> RMIZEND IdEr311MM" 111=11 <br />