MTC Bio Exact Volume Transfer Pipette E9500-50 | 50µL, 72mm, Sterile — 2,500/Case (5 Resealable Bags of 500)

Product Description

The MTC Bio Exact Volume Transfer Pipette E9500-50 is a 50µL sterile LDPE dual-bulb transfer pipette — engineered for consistent, repeatable liquid handling without the complexity of calibrated instruments. The unique dual-bulb design features an upper pinch bulb for standard pipetting via familiar pinch and release action, and a lower overdraw bulb that captures excess liquid — trapping the extra sample in the overdraw bulb during release and ensuring that only the exact desired volume of 50µL is dispensed every time. Manufactured from chemically resistant LDPE. Sterile packaging — an MTC Bio exclusive. 72mm length. 2,500 pipettes per case — 5 resealable bags of 500. Catalog # E9500-50.

The Dual-Bulb Design — The Defining Innovation of the Exact Volume Transfer Pipette Standard single-bulb transfer pipettes rely on the user's manual technique to dispense a consistent volume — an inherently imprecise approach that produces variable results between operators and between draws. The MTC Bio Exact Volume Transfer Pipette eliminates this variability through its patented dual-bulb system:

• Upper pinch bulb — the primary working bulb, compressed by the user to aspirate and dispense liquid using the familiar pinch-and-release action of a standard transfer pipette
• Lower overdraw bulb — a secondary bulb positioned between the upper bulb and the stem, designed to capture any liquid drawn in excess of the calibrated volume during aspiration. When the upper bulb is released, the excess liquid drawn into the overdraw bulb is retained there rather than being dispensed — ensuring that exactly 50µL and no more is released from the stem tip

This dual-bulb system produces consistent, repeatable 50µL deliveries regardless of operator technique — making the E9500-50 suitable for applications where single-bulb transfer pipettes produce unacceptable volume variability.

50µL — A Core Working Volume for Molecular Biology and Diagnostics The E9500-50 delivers exactly 50µL per dispense — one of the most widely used volumes in molecular biology and diagnostic workflows. At 50µL, the E9500-50 covers standard PCR reaction volumes, ELISA reagent addition steps, immunoassay sample volumes, lateral flow assay sample loading, microscopy staining and washing steps, and a wide range of kit-based molecular applications where 50µL is the standard working volume. For labs working with expensive reagents, rare samples, or high-throughput assay kits where consistent 50µL delivery is required across many samples simultaneously, the E9500-50 provides a sterile single-use alternative that eliminates carry-over contamination and calibration maintenance concerns.

E9500-50 vs. E9500-20 — Choosing the Right Small-Volume Format:

E9500-50 vs. E9500-80 and E9500-100 — The Mid-Small Volume Range:

Sterile Packaging — An MTC Bio Exclusive Sterile packaging — an MTC Bio exclusive. The E9500-50 is supplied sterile in resealable bags — qualifying it for cell culture, sterile media preparation, aseptic sample handling, and any application requiring a sterile liquid handling consumable at 50µL volume. The 5-bag resealable packaging format maintains the sterility of unused pipettes after the bag is opened — practical for labs that use small numbers of pipettes at a time throughout the day.

72mm Length — Designed for Standard Tube and Well Reach At 72mm total length, the E9500-50 is sized to reach the bottom of standard 1.5mL and 2.0mL microcentrifuge tubes, 96-well plate wells, PCR tubes, and other standard laboratory vessels used at 50µL working volume — providing the correct ergonomic reach for the most common 50µL laboratory applications.

Chemically Resistant LDPE — Compatible with a Wide Range of Solutions Manufactured from chemically resistant LDPE. Low-density polyethylene (LDPE) provides broad chemical compatibility — suitable for aqueous buffers, saline solutions, culture media, most acids and bases at standard laboratory concentrations, alcohols, and a wide range of molecular biology and diagnostic reagents. The LDPE material is flexible enough for comfortable pinch-and-release operation while maintaining the structural integrity required for consistent volume delivery.

Minimal Liquid Retention — Maximum Sample Recovery Minimal liquid retention. The LDPE material and tip geometry of the E9500-50 minimize the volume of liquid retained on the inner surfaces of the stem after dispensing — ensuring that the full 50µL is delivered to the target vessel rather than being lost to tip wetting.

Complete Exact Volume Transfer Pipette Family:

Compatible Replacement — Cross-Reference Guide

The MTC Bio Exact Volume Transfer Pipette E9500-50 is a comparable alternative to sterile transfer pipettes from several major manufacturers:

• Samco™ Transfer Pipettes — standard sterile transfer pipettes, 50µL approximate volume
• Globe Scientific Transfer Pipettes — sterile LDPE transfer pipettes, small volume range
• Thermo Fisher Fisherbrand™ Transfer Pipettes — sterile transfer pipettes, small volume range
• Alpha Laboratories Disposable Pasteur Pipettes — sterile LDPE transfer pipettes

The E9500-50 uniquely provides exact volume delivery through its dual-bulb design — differentiating it from standard single-bulb transfer pipettes that rely on operator technique for volume consistency.

Key Features

• MTC Bio Exact Volume Transfer Pipette — Catalog # E9500-50
• 50µL exact volume delivery — dual-bulb design ensures consistent repeatable dispensing
• 72mm total length
• Dual-bulb system: upper pinch bulb + lower overdraw bulb for exact volume control
• Chemically resistant LDPE construction
• Sterile — sterile packaging, an MTC Bio exclusive
• Minimal liquid retention — maximum sample delivery
• Single-use — eliminates carry-over contamination
• No calibration required — simple pinch and release operation
• 5 resealable bags of 500 per case — 2,500 pipettes total
• Resealable bags maintain sterility of unused pipettes after opening
• Available in 10 volumes: 20µL through 500µL

Supported Applications PCR and qPCR reaction setup at 50µL volume, ELISA reagent addition and sample loading, lateral flow assay sample loading, immunoassay sample preparation, cell culture reagent addition, sterile media preparation at 50µL scale, microscopy staining and washing steps, molecular biology assay kit bundling as a sterile 50µL delivery tool, diagnostic kit liquid handling, flow cytometry sample preparation, routine lab liquid transfer where sterile single-use consumables are required at 50µL scale, and any laboratory application requiring consistent, repeatable 50µL delivery without calibrated pipette equipment.

Technical Specifications