0.2 mL LDPE Disposable Transfer Pipets with Paddle Mixer Tip — Natural, 500/Bag (230-1561-020)
These 0.2 mL low-density polyethylene (LDPE) disposable transfer pipets feature an integrated paddle mixer tip that aspirates and mixes specimen with reagent in a single motion, eliminating a separate mixing step in clinical and research workflows. Supplied natural (clear) and non-sterile in bulk 500/Bag format, they deliver a calibrated 50 µL drop size for semi-quantitative volume reference during routine liquid transfer. The LDPE construction provides the flexibility needed for complete sample expulsion and low residual retention across a broad range of laboratory specimens and reagents.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 230-1561-020 |
| Volume | 0.2 mL |
| Tip Type | Paddle Mixer |
| Drop Size | 50 µL/drop |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural (Clear) |
| Sterility | Non-Sterile |
| Pack Size | 500/Bag |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- Urinalysis sample handling — paddle mixer tip combines aspiration and specimen-reagent mixing in one action, reducing workflow steps
- Hematology sample preparation — immediate post-aspiration mixing reduces cross-contamination risk from separate mixing instruments
- Microbiology specimen transfer — disposable single-use format supports infection control protocols
- Clinical chemistry sample transfer and reagent dispensing — 50 µL drop size provides a semi-quantitative volume reference for routine applications
- General research liquid handling where a flexible, low-retention, disposable transfer pipet is required
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol | Compatible |
| Isopropanol | Compatible |
| Acetonitrile | Compatible |
| Aromatic solvents (e.g., toluene, xylene) | Limited — use with caution |
Quality & Procurement
Made in USA, these Caplugs® Evergreen transfer pipets are manufactured from BPA-free, phthalate-free LDPE resin, supporting lot traceability requirements for CAP-, CLIA-, and ISO 15189-accredited laboratories. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, typically same business day for stocking items, with tiered pricing available for high-volume institutional and grant-funded accounts.
Frequently Asked Questions
Are these transfer pipets sterile?
No — they are supplied non-sterile in 500/Bag bulk packaging. If your application requires sterile transfer pipets, please contact us for sterile format availability.
How does the paddle mixer tip work?
The flat paddle-shaped tip end simultaneously aspirates specimen and mixes it with reagent in a single pipetting motion, eliminating the need for a separate mixing instrument and reducing both workflow steps and cross-contamination risk — particularly valuable in urinalysis and hematology sample preparation.
Is the 50 µL drop size suitable for precise volumetric delivery?
The 50 µL per-drop calibration provides a semi-quantitative volume reference appropriate for routine transfer applications. Where precise volumetric accuracy is required, a calibrated micropipettor should be used instead.
Is LDPE compatible with the reagents used in my lab?
LDPE performs well with aqueous buffers, dilute acids and bases, and common alcohols such as methanol and isopropanol. It has limited resistance to aromatic solvents such as toluene and xylene; verify compatibility before use with those reagents.