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The guava easyCyte format is compact and offers many new innovations in optical performance and software.
8 Peak Rainbow Beads

Spherotech 8 Peak Rainbow Beads run on a guava easyCyte™ 8HT: Green, Yellow and Red Fluorescence Channels
Instrument Accuracy
Accuracy on the guava easyCyte™ 8HT is shown using a human whole blood cocktail (FlowCellectTM Human CD4/CD8 T Cell Kit). Results were comparable to a predicate method on a sheath-fluid based flow cytometer.

Accuracy on the easyCyte 8HT is comparable to traditional flow cytometry


Discriminate between small cells or particles 0.19 – 1.0 µm with guava easyCyte™ 5 HPL or 5HT HPL
Consistent sample results across an entire plate with sample mixing

Evaluation of well-to-well consistency with sample mixing for a 96-well plate.
Sample concentrations were within acceptable range for all samples within the plate.

easyCheck beads were diluted at 1.0x10e6 and placed into all wells of a 96 well plate.
The plate was then spun at 150xg for 5 minutes to mimic settling.
Each well was acquired and concentrations were determined.
Data show the concentrations for each well (solid line) as well as +/- 10% values (dotted lines)
Plate 1Plate 2Plate 3Plate 4Plate 5
Carryover0.15% ±0.17% ±0.21% ±0.23% ±0.22% ±
Percentage0.010.170.080.070.04
Consistent cell counts for each channel
Fluorescence resolution for all channels show consistent counts and population percentages, for whole blood


Scatter resolution for 6-color staining

LaserChannelCountPercentage of Population
488 nm LaserFITC10999.9
PE120510.6
PE-Cy5.5117510.4
PE-Cy710859.6
635 nm LaserAPC123911.1
APC-Cy7113110.0
Immunological Phenotyping-6 Color Assay
The guava easyCyte 8HT system accurately discriminates six different fluorochromes within a single assay.As shown in the data below, the percentages and absolutely counts of six different populations were evaluated from whole blood.


HEK-293 cells transfected with GFP (green) or untransfected (grey).
5 decade dynamic range enables simultaneous detection of bright and dim fluorochromes
Software templates for simple acquisition and analysis
Pre-calibrated instruments that need no adjustment
Transfer methods and setting between any guava easyCyte, even for systems with different optical layouts
Over 14 years of experience in Microcapillary Flow Cytometry
Since 1998, guava systems have helped many scientists achieve insightful cellular analysis. A summary of the patent history associated with microcapillary technology is listed here:

The guava easyCyte HT System is the subject of issued and pending US patents and foreign equivalents, including the following US patents: Download a list of references for our instruments here.
Quality control of daily performance
The guava easyCheck kit is used to verify system performance and maintain daily quality control before running any assays, and is superior to instrument calibration for this purpose. The kit consists of Easy Check standardized fluorescent beads and diluent, facilitating assessment of counting accuracy and fluorescence detection. The guava Easy Check kit is included with all instruments to enable daily, routine signal optimization and quality control.