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  • Title: Study of lot-to-lot reproducibilities of Bond Elut Certify and Clean Screen DAU mixed-mode solid-phase extraction columns in the extraction of drugs from whole blood.
    Author: Chen XH, Franke JP, Wijsbeek J, de Zeeuw RA.
    Journal: J Chromatogr; 1993 Jul 23; 617(1):147-51. PubMed ID: 8376529.
    Abstract:
    The lot-to-lot reproducibilities of Bond Elut Certify and Clean Screen DAU columns are described. The recoveries of five test drugs obtained from twelve lots of Bond Elut Certify columns ranged from 84 to 104% with standard deviations of less than 9%. The recoveries of five test drugs obtained from six lots of Clean Screen DAU columns ranged from 81 to 103% with standard deviations of less than 7%. The 95% confidence intervals of the means as obtained by ANOVA demonstrate that there are no significant differences between the tested lots of Bond Elut Certify and Clean Screen DAU columns. Comparison of the two brands shows that both Bond Elut Certify and Clean Screen DAU columns are well acceptable for routine drug screening in systematic toxicological analysis, with a slightly higher overall recovery for the former.
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