Ready-to-use serial dilution cups
Sterile dilution cups
Produced in a clean-room & sterilized by irradiation
Dilution tubes vs Dilucup® Elegance
| Traditional dilution tubes | Dilucup® Elegance |
|---|---|
| Time-consuming: manual preparation of diluents, filling of tubes, autoclaving, quality control, calibration of instruments, etc. | Ready to use |
| Many individual dilution tubes | Blister pack of 21 or 42 Dilucups |
| Repetitive gripping, twisting and tube handling | The Dilucups used during the dilution series remain open, eliminating movements related to tube handling |
| Requires the use of a vortex mixer | Requires the use of a Dilugent® Shaker |
| Prolonged use of opening/closing tubes and the vortex mixer can cause repetitive strain injuries | Ergonomic |
| Difficult to trace | QR codes on the blisters allow traceability of dilutions with Dilugent® Shaker |
Features of Dilucup® Elegance
- Ready-to-use sterile dilution cups
- Volume: 9 mL ± 2% (according to ISO 6887-1:2017/Amd 1:2024) (usually 9 mL ± 0.5%)
- pH: 7.0 ± 0.2 (according to ISO 6887-1:2017/Amd 1:2024) (does not apply to DW)
- Microbiological productivity: verified with E. coli and S. aureus (according to ISO 11133:2014)
- Complies with ISO standards
- Dilucup® can be rotated at high speeds (400 - 660 rpm) without spilling, thus ensuring homogeneous mixing
- QR code for traceability
- Available in two formats: 3x7 or 6x7 Dilucups
- Quantity per box: 672 Dilucups divided into 2 separate bags of 336 cups
- 3 cups/row: 2 bags x 16 blisters x 21 Dilucups per box
- 6 cups/row: 2 bags x 8 blisters x 42 Dilucups per box
- Weight and volume: 8 kg/box – 0.032 m³/box
- Storage:
- Closed bags: store at room temperature (+2 to +25 °C) for up to 30 months
- Opened bags: store refrigerated (+2 to +8 °C) for up to 3 months
Dilucup® has highly accurate diluent volumes
Accurate diluent volumes are crucial for correct enumerations, which is why we continuously strive to ensure that Dilucup® Elegance has the most accurate volume possible.
These bars show the percentage of Dilucups that had a volume of 9 mL ± 0.5% per year:
89.21% in 2021
84.45% in 2022
91.72% in 2023
99.08% in 2024
99.72% in 2025
*Statistics for 2026 will be available in early 2027. These statistics are based on approximately 15,000 measurements per year.
Please note that the maximum deviation allowed by ISO standards is ± 2%.
Tips and tricks:
- If you only want to open a few Dilucups from a row, you can easily cut the protective film using a utility knife. That layer on the top guarantees sterility and also ensures the correct volume inside the cups.
- If you need just a few Dilucups instead of the entire row, you can also easily separate them with scissors.
- Depending on how many dilutions you typically perform per sample, you may find either the smaller or larger blister more convenient.
- For example, if you usually perform 3 dilutions, we recommend the blister with 3x7 Dilucups.
- However, if you usually perform more than 3 dilutions, then the larger blister with 6x7 cups may work best for you.
Traceability of dilutions for better quality control
Dilucup® Elegance blisters and bags include QR codes that can be scanned by the Dilugent® Shaker using an external scanner.
Batch information, sample ID, time, user ID, and other data can be exported by USB and stored with your lab documentation, supporting traceability, quality control and audit readiness.
Available diluents in Dilucup® format
| Diluent | Description | Composition | 3 cups/row | 6 cups/row |
|---|---|---|---|---|
| Dilucup® Elegance MRD | Maximum Recovery Diluent / Peptone Salt | Buffered solution containing peptones 1 g/L, NaCl 8.5 g/L | 40DEMRD3 | 40DEMRD6 |
| Dilucup® Elegance NACL | Saline solution / Salt diluent | Buffered solution containing NaCl 8.5 g/L | 40DENACL3 | 40DENACL6 |
| Dilucup® Elegance BPW | Buffered Peptone Water | Buffered solution containing peptones 10 g/L, NaCl 5 g/L | 40DEBPW3 | 40DEBPW6 |
| Dilucup® Elegance EP | Eau peptonée / Peptone Water | Buffered solution containing peptone 0.1% | 40DEEP3 | 40DEEP6 |
| Dilucup® Elegance DW | Deionized Water | Deionized water: conductivity below 10 μS/cm | 40DEDW3 | 40DEDW6 |
Dilucup® Elegance MRD
Maximum Recovery Diluent / Peptone Salt / Tryptone Salt
MRD is an isotonic diluent designed for the optimal recovery of microorganisms. By combining the protective effect of peptic digest with the osmotic balance of physiological saline, it keeps organisms viable while preventing multiplication over short periods.
Applications:
• Food microbiology
• Paper industry
• Water processing
• Biotech industry
• Probiotics
Dilucup® Elegance NACL
Saline solution
NaCl maintains osmotic balance without stressing the microorganisms. Its stability and non-toxic nature make it ideal for supporting the growth and maintenance of microorganisms without causing osmotic stress.
Applications:
• Food microbiology
• Paper industry
• Water processing
• Biotech industry
• Probiotics
Dilucup® Elegance BPW
Buffered Peptone Water
BPW is a non-selective pre-enrichment medium, widely used to recover sub-lethally damaged microorganisms, particularly Salmonella spp., from food samples. Its buffering capacity keeps the pH stable, giving stressed cells the perfect environment to bounce back before analysis.
Applications:
• Food microbiology
• Biotech industry
• Probiotics
Dilucup® Elegance EP
Eau Peptonée / Peptone Water
With 0.1% peptone, EP is frequently used as a safe, isotonic diluent to maintain cell integrity without promoting significant growth.
Applications:
• Food microbiology
• Water processing
Dilucup® Elegance DW
Deionized Water
Ideal when you need a diluent free from added salts or nutrients.
Applications:
• Water testing
• Biotech industry
Do you want pre-filled dilution cups with another diluent?
The production of Dilucup® Elegance filled with other diluents or volumes is possible with a minimum order of two pallets (43 008 cups).
Contact us for a feasibility study!
+46 303 846 73
kontakt@labrobot.com
