|
Located at the downstream end of tests, absorbent sinks control sample
flow along the strip. Their hydrophilic properties and excellent wicking
characteristics draw liquid into the pads, facilitating sample flow.
Selection of the appropriate absorbent enables control of the assay flow
rate. Whatman cellulose materials consistently provide ideal
performance.
Features and Benefits
- Excellent test-to-test reproducibility and reliability.
Consistent absorbency and wicking rates within and between lots.
- Accommodates all housings.
Wide range of thicknesses and absorbencies ensures material
compatibility for any design.
- Minimal leakage back along the strip.
High absorbencies prevent reverse flow from contaminating test
results.
Product Range and Properties
CF3
100% cotton linter. Medium thickness and absorbency. Suitable for small
sample volumes and slow flow rates.
CF5
100% cotton linter. Higher absorbency for medium sample volumes and flow
rates.
CF6
Glass fibre/cellulose mix. Higher absorbency than CF5 and faster wicking
for higher flow rates.
CF7
Our thickest 100% cotton absorbent. Suitable for high-volume samples
with no back-flow contamination.
Standard Sizes
Reels are available in the following standard sizes:
12mm x 50m
17mm x 50m
22mm x 50m
27mm x 50m
| Typical Test Data - Absorbent
Sink Materials |
| Grade |
Thickness (µm@53kPa) |
Wicking Rate (s/4cm) |
Water Absorption (mg/cm2) |
| CF3 |
322 |
75 |
31 |
| CF5 |
954 |
75 |
98 |
| CF6 |
1370 |
65 |
128 |
| CF7 |
1873 |
35 |
198 |
|
+32 (0) 16
58 90 45 
+32 (0) 16
50 90 45
