Laserfiche WebLink
F <br /> IN <br /> r.+ <br /> calibration Blank: <br /> - An organic or aqueous solution that is as free of analyte as <br /> Possible and prepared with the same volume of reagents used <br /> in the preparation of calibration standards. The calibration <br /> blank is used to give the null reading for the instrument <br /> response versus concentration calibration curve. <br /> Equipmmat Blank: <br /> An organic-free aqueous solution that is opened in the filed, <br /> Poured appropriately over and through the sample collection <br /> devise, collected in a sample container and returned to the <br /> lab as a sample. Equipment blanks are a check or sampling <br /> devise cleanliness. <br /> Field Blank: <br /> An organic-free aqueous solution that is transferred from one <br /> -- preserved vessel to another at the sampling site. This <br /> serves as a check on reagent and environmental <br /> contaminations. <br /> Reagent Blank: <br /> An organic or aqueous solution that is as free of analyte as <br /> - possible and contains all the reagents in the sane =volume as � <br /> used in the processing of the environmental samp?.es. The <br /> reagent blank is carried through the complete preparation <br /> procedure and is used to correct for possible extraction <br /> procedure contamination. <br /> Trip Blank: <br /> An organic-free aqueous solution that is transported to the <br /> .. sampling site and returned to the laboratory without being <br /> opened to serve as a check on contamination originating from <br /> sample transport, shipping and site conditions. <br /> Comparability: <br /> An expression of confidence with which one data set can be <br /> related to another. <br /> 18 <br />