The Guava® Check Kit and Guava® Instrument Cleaning Fluid (ICF) are used in routine maintenance and automated instrument quality control procedures. Both help ensure that your Guava Instrument is optimized for peak performance. Running Guava Check and ICF Procedures for daily quality control (QC) and maintenance helps your Guava Systems consistently deliver reliable, accurate results.
The Guava Check Kit is used to verify the performance of your Guava System by assessing counting accuracy and fluorescence detection using a standardized fluorescent bead reagent. The kit contains Guava Check Beads and Guava Check Diluent. Running the Guava Check Procedure daily before performing any assays is important to ensure that your Guava Instrument will provide reliable, accurate results.
Guava Check Beads are provided as a concentrated fluorescent bead suspension of known concentration. To run the Guava Check Procedure, the bead reagent is mixed with Guava Check Diluent at a recommended dilution to yield a bead suspension at a specific target concentration. The Guava Check Procedure analyzes the results from three sequential data acquisitions of this bead suspension. The count results are displayed on the screen for comparison with the known target value. Particle counts that are outside of the expected range are displayed in red. Mean scatter and fluorescence signal intensities are also displayed. The results and the instrument settings are saved to a spreadsheet file. The results from subsequent Guava Check Procedure runs are appended to this file.
Guava ICF is the most effective cleaning agent available for ensuring optimal performance of your Guava System. Use of Guava ICF for daily instrument maintenance prevents buildup of fluorescent dyes within the instrument's flow cell and minimizes the risk of instrument clogs, preventing costly downtime. Guava ICF can even remove debris if problem samples create partial or total blockage of the flow cell. A single 100 mL bottle is typically sufficient for several weeks of use with a Guava System.
