Problems Addressed
  • Labs needed a low cost and easy to use QC method with all statistics, liquid classes, and robotic methods in one place
  • Good liquid handling by manual pipetting or automated pipetting requires good technique, practices, and calibration
  • Automated liquid handlers (ALH), now standard products from a number of well known manufacturers require calibration for purposes of precision and accuracy in liquid delivery.
  • We have found most labs are working with un-calibrated systems that produce irreproducible results or inconsistent results costing the industry millions of dollars.
  • We have presented our work at SLAS (Society for Laboratory Automation and Screening) in the presentation "User Happy Hour-Enabling Labs to Maximize the Performance of Their Robots".
  • We have also presented our work at SLAS.org describing the GoodLiquidHandling kit.
  • Labs need to know if their pipettes are working properly.
  • Through our manual pipette and automated pipette kits labs can determine cost effectively and efficiently if their pipettes operate and are giving reproducible, repeatable, and reliable results.
 
Take Away
  • This is an an FDA approved solution, Safe Dye, Easy to Use, Inexpensive Saves time over making the solutions yourself.
  • Standardized to your plate format and your working volume ranges.
  • Convenient and standardized solution for calibrating your manual or automated pipetting systems
  • Available robot methods with optimized liquid classes.
  • Excel template tied into Sharepoint or your database.
  • Statistical open package for statistical graphic reporting
 
How It Works
  • Many labs participated in our hands-on courses and adopted a single dye method for non-NIST traceable QC, validation, performance, optimization and calibration.
  • Lab techs take measurements with an absorbance reader.
  • They Dispense dye mixture with a diluent in a microwell
  • Shake and/or centrifuge microwell plates
  • Read the absorbances and Calculate %CV and %Error
  • Identify faulty pipette channels and correct the performance of their instruments and adjust your pipette techniques efficiently and effectively
 
Good Pipetting and Liquid Handling Practice Results
  • Achieved low volume delivery from 300nl-1.5uls accurately and precisely with %CVs ranging from 0.65% to 7%.
  • Compared with the Artel system achieved same %CVs
  • Works with DMSO and Aqueous solutions reliably, performs linearly in both QC solutions.
  • Request a publication for more details.
 
Flexible volume ranges
  • Reference concentrations matched serial dilution calibration curves.
  • Dyes are linear and found to be more linear and stable than Tartrazine in DMSO
  • Any volume range may be possibly achieved
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