AccuStandard®

Working Levels and CurvesAccuStandard’s QC protocol provides assurance & confidence inWorking Level Standards:Each Calibration Set is prepared using raw materials which have been testedfor chemical purity and identity by GC/MS. After checking the identity andpurity of each analyte, its concentration in the Calibration Solution isconfirmed by rigorous analysis.All individual component responses in the Calibration Set are then plottedusing least squares linear regression. The resultant line drawn through thedata points must have a coefficient of correlation no less than 0.99. Anindependently prepared QC check standard, having a concentration at themidpoint is analyzed to verify the accuracy of the calibration curve.CLP-023R-CAL-SETAnalyte: p,p'-DDTCat. No. Lot No. Conc. AreaCLP-023-R-WL 025-279 10 ng/mL 12334CLP-023-R-WL-4X 025-278 40 ng/mL 48513CLP-023-R-WL-16X 025-277 160 ng/mL 214379M-8080-WL-25X Lot No. 025-340TARGET VALUE 100ANALYTICAL AREA 137012ANALYTICAL VALUE 103.4% DIFF. FROM TARGET 3.4%CLP-023R-CAL-SETM-8080-WL-25X Lot No. 025-340TARGET VALUE 100ANALYTICAL AREA 227622Analyte: DieldrinCat. No. Lot No. Conc. AreaCLP-023-R-WL 025-279 10 ng/mL 20523CLP-023-R-WL-4X 025-278 40 ng/mL 85767CLP-023-R-WL-16X 025-277 160 ng/mL 375897ANALYTICAL VALUE 98.1% DIFF. FROM TARGET -1.9%AccuStandard’s QC protocol thus provides the end user withassurance when calibrating with Working Level Standards. Thisextra level of confidence will allow your laboratory to concentrateon analyzing samples, rather than preparing calibrationsolutions.Documentation of our analysis are available upon request withorder.Validated for You !!Working Level Standards &Continuing Calibration Check (CCC)The AccuStandard CCC Product Line Improves Efficiency:Load the calibration curve Standards at the end of the day with your samples and workinglevel check, and review a verified curve with your sample results the next day.156AccuStandard is accredited to ISO/IEC 17025 and certified to ISO 9001