Common Contracts
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AGREEMENT NO. A4123AMarch 27th, 2017
Matrix spike/matrix spike duplicate (MS/MSD) samples will be used to assess the recovery of various analytes and to detect matrix interferences. The MS/MSD samples will be prepared by adding analyte at the level present in the sample, or at the concentration of the mid-range calibration standard, whichever is higher. Spike recovery will be calculated as follows:
