Reagent Reservoirs for Multichannel Pipetting and Automated Liquid Handling

Reagent reservoirs are disposable or reusable polypropylene or polystyrene troughs holding 10–300 mL of liquid reagent for repetitive dispensing with 4-, 8-, and 12-channel multichannel pipettes and automated liquid handlers. V-bottom designs minimize dead volume; polypropylene formats are DMSO-safe and autoclavable at 121 °C. Globe Scientific lines cover 10/25/50 mL sterile-wrapped (SAL 10⁻⁶) and bulk formats; Nest Scientific robotic PP reservoirs conform to SBS/ANSI standards. MBP ships to labs across the United States, Canada, and internationally with PO and Quick Order at mbpinc.net.

Need help selecting the right reagent reservoirs for your liquid handling workflow? Contact customerservice@mbpinc.net for product recommendations, pricing, and procurement support.

Reagent Reservoirs

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What are reagent reservoirs?

Reagent reservoirs are plastic troughs used to hold liquid reagents during multichannel pipetting. They are designed so that 8- or 12-channel pipettes can draw liquid from a shared pool at the same time, which makes filling 96-well or 384-well plates much faster and more consistent.

They are commonly used in ELISA, PCR/qPCR setup, cell culture, high-throughput screening, and general laboratory liquid handling. Instead of repeatedly aspirating from small tubes for each channel, the multichannel pipette dips into the reservoir once and distributes the reagent across multiple wells efficiently.

Reagent reservoirs are available in disposable or reusable formats and are typically made from polystyrene (for aqueous, low-risk reagents) or polypropylene (for stronger chemical resistance and reusable/autoclave applications). Some designs are single troughs, while others include multiple chambers or are compatible with robotic liquid handling systems.

What you will find:

Individually wrapped sterile options for sensitive assays and cost-effective non-sterile units for routine use.
Unique V-shaped bottoms and clear graduations to minimize reagent waste and ensure maximum recovery.
Disposable inserts to prevent cross-contamination or durable reusable reservoirs for high-volume tasks.
Full compatibility with existing pipette tips and plates for a seamless, uninterrupted workflow.

How to choose reagent reservoirs

Volume

Select reservoir volume based on how much reagent is needed for your workflow. Smaller reservoirs (around 10–25 mL) are suitable for routine ELISA or PCR setups, while larger volumes (50–100 mL or more) are used for multi-plate runs or high-throughput workflows where the same reagent is dispensed repeatedly.

Material (PP vs PS)

Polypropylene reservoirs are chemically resistant and can handle solvents like DMSO, ethanol, and other harsher reagents. They are also autoclavable, making them suitable for sterile or reusable workflows. Polystyrene reservoirs are more cost-effective and typically used for aqueous buffers, ELISA reagents, and general non-hazardous laboratory work.

Bottom design

V-bottom or pyramid-bottom reservoirs reduce leftover liquid by guiding the reagent toward the pipette tip area. This helps minimize waste, which is especially important when working with expensive reagents like antibodies or fluorescent dyes.

Sterile vs non-sterile

Sterile reservoirs are used in cell culture, clinical workflows, and any application requiring aseptic handling. Non-sterile versions are sufficient for PCR, ELISA, and most routine molecular biology tasks.

Single-use vs reusable

Disposable reservoirs reduce contamination risk and simplify workflow changes between reagents. Reusable polypropylene reservoirs are preferred in high-throughput labs that repeatedly use the same reagents and want to reduce consumable cost.

Automation compatibility

For robotic systems, reservoirs must match SBS/ANSI footprint standards and be compatible with liquid handling platforms like Hamilton, Tecan, Beckman, or Agilent. Low-profile designs help ensure proper clearance for automated pipetting heads.

Specifications context

Reagent reservoirs are manufactured in standardized SBS/ANSI footprints to ensure compatibility with manual and automated pipetting systems. Material selection determines chemical resistance, sterilization capability, and reuse potential. As of 2026, polypropylene reservoirs are increasingly preferred in high-throughput and compound screening laboratories due to their durability, chemical compatibility, and suitability for automation workflows.

Enhance your lab efficiency with dependable liquid handling solutions. Contact the Molecular Biology Products Inc. team to find the right reagent reservoirs for your applications.

FAQ

Reagent reservoirs are disposable or reusable plastic troughs used to hold liquid reagents during repetitive pipetting with multichannel (4-, 8-, or 12-channel) and single-channel pipettes. They allow multiple tips to draw from a shared pool simultaneously, which is essential for filling microplates row-by-row or column-by-column in ELISA, PCR setup, cell culture, high-throughput screening, and automated liquid handling workflows where dispensing the same reagent across many wells is required.

Reagent reservoirs are available in 10 mL, 25 mL, 50 mL, 55 mL, 100 mL, and 175–195 mL sizes. The 25 mL size suits 96-well plate filling with an 8- or 12-channel pipette where the full trough volume is used across one plate. The 50 mL reservoir accommodates larger reagent volumes for multi-plate runs or when working with 12-channel pipettes filling a full microplate at once. Robotic and automated liquid handler reservoirs extend to 300 mL capacity in SBS/ANSI footprint formats.

Polypropylene (PP) reagent reservoirs are chemically resistant to DMSO, organic solvents, ethanol, and most acids and bases, and are autoclavable at 121 °C — the preferred choice for automated liquid handling, combinatorial chemistry, and workflows using organic reagents. Polystyrene (PS) reservoirs are lower-cost, optically clear or white, and appropriate for aqueous buffers, cell culture media, and ELISA where solvent resistance is not needed. PS is not autoclavable and provides less chemical resistance than PP.

Reagent reservoirs use V-bottom (angled or narrow V-shaped trough), pyramid-bottom, and flat-bottom designs. V-bottom and pyramid designs funnel residual liquid toward the lowest point, concentrating it where pipette tips can reach — reducing dead volume to as low as 1–2 mL in a 25 mL reservoir. Flat-bottom reservoirs have higher dead volume. For costly reagents (antibodies, enzymes, fluorescent dyes), a V-bottom design can recover significantly more reagent per reservoir, reducing cost per experiment.

Sterile reagent reservoirs are available individually wrapped (gamma-irradiated, SAL 10⁻⁶) and are required for cell culture media dispensing, sterile buffer aliquoting, and any workflow where downstream sterility must be preserved. Globe Scientific sterile reservoirs (10, 25, and 50 mL) are irradiated to SAL 10⁻⁶ and individually wrapped. Non-sterile bulk reservoirs (5 per bag, 10 bags per case) are appropriate for PCR reagent dispensing, ELISA workflows, and general non-sterile liquid handling.

Polypropylene reagent reservoirs conforming to SBS/ANSI footprint standards (127.8 × 85.5 mm) are directly compatible with automated liquid handling platforms from Hamilton (STAR, VANTAGE), Tecan (Freedom EVO, Fluent), Beckman Coulter (Biomek), and Agilent (Bravo). Nest Scientific 96-well polypropylene robotic reservoirs measure 127.8 × 85.5 × 31.4 mm and are certified DMSO-resistant and RNase/DNase-free for automated workflows. Low-profile designs ensure compatibility with short robotic tip lengths.

Most standard trough-style reagent reservoirs are wide enough to accommodate 4-, 8-, and 12-channel multichannel pipettes from all major brands (Eppendorf, Thermo Finnpipette, Rainin, INTEGRA, BrandTech). The trough width typically spans the full 85 mm SBS plate width to align with 12-channel tip arrays. Specialty reservoirs such as the MTC Bio ASPIR-8 are narrower (designed specifically for 8-channel pipettes) to reduce reagent exposure area and waste when a 12-channel trough width is not needed.

Polypropylene reagent reservoirs — including the Globe Scientific universal reservoir (Item #140100) — are autoclavable at 121 °C for 15 minutes on a standard liquid cycle, enabling reuse between different reagents. Polystyrene reservoirs are not autoclavable. For regulated environments where cross-contamination documentation is required, disposable single-use reservoirs (sterile or non-sterile) are typically preferred over autoclavable reusable options to simplify traceability.

MBP supports purchase order and Quick Order procurement for reagent reservoirs for labs in the United States, Canada, and internationally. MBP carries Globe Scientific and Nest Scientific reagent reservoir lines. MBP is a registered vendor for Howard Hughes Medical Institute, Vanderbilt University, MD Anderson Cancer Center, and Eurofins. For case pricing, volume discounts, or PO submission, contact MBP at mbpinc.net.

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