AECC JB1010 Automated Standard Addition Dispenser

Overview

The AECC JB1010 Automated Standard Addition Dispenser is an engineered solution for precise, repeatable, and traceable liquid dispensing in analytical chemistry laboratories. Designed specifically to address the operational challenges associated with manual standard addition—particularly in trace metal analysis and quantitative spectroscopic methods—the JB1010 implements a motor-driven positive-displacement piston mechanism to deliver calibrated volumes of standard or internal standard solutions with high reproducibility. Unlike conventional volumetric glassware or air-displacement pipettes, the JB1010 eliminates human variability in timing, pressure, and meniscus reading, thereby reducing systematic error and improving method robustness. Its architecture supports integration into standardized workflows compliant with ISO/IEC 17025, ASTM E2028, and USP guidelines for analytical instrument qualification.

Key Features

• Motorized single-channel dispensing with programmable volume selection from 1.00 mL to 99.00 mL in 0.01 mL increments
• High-precision piston pump calibrated to ±0.01 mL absolute accuracy across full range, verified per ISO 8655-3
• Repeatability performance validated at RSD <0.15% (n = 10) using certified reference standards
• Chemically resistant fluid path compatible with common dilute acids (e.g., 1–5% HNO₃, HCl) and neutral aqueous matrices
• Compact benchtop footprint (200 × 210 × 260 mm) and lightweight design (2.3 kg) for flexible placement in fume hoods or ICP sample preparation areas
• Integrated power supply delivering regulated 24 V DC output; universal AC input (100–240 V, 50–60 Hz) suitable for global laboratory infrastructure
• Industrial design co-developed with Tsinghua University Academy of Arts & Design, emphasizing ergonomic operation and intuitive interface layout

Sample Compatibility & Compliance

The JB1010 is validated for use with standard solutions used in elemental quantification workflows—including but not limited to ICP-OES, ICP-MS, atomic absorption spectroscopy (AAS), and UV-Vis spectrophotometry requiring internal standardization. It accommodates standard stock solutions prepared in dilute nitric or hydrochloric acid matrices (pH 1–3), as well as neutral buffer systems. The device is not intended for organic solvents, viscous liquids (>10 cP), or highly corrosive media such as concentrated HF or aqua regia. Each unit ships with a national metrology institute–traceable calibration certificate and full verification report aligned with JJG 646–2015 (Chinese National Verification Regulation for Automatic Liquid Handling Instruments). Routine user verification is supported via gravimetric assessment per ISO 8655-6.

Software & Data Management

The JB1010 operates via an embedded microcontroller with non-volatile memory storing up to 20 user-defined dispensing protocols. While it does not feature network connectivity or PC-based software, all settings—including volume, number of repeats, pause intervals, and aspiration/dispense speed—are configurable via tactile membrane keypad and LCD display. Firmware updates are provided free-of-charge via USB interface and are fully backward-compatible. Audit trails are maintained internally for all parameter changes and dispensing events, supporting GLP-compliant recordkeeping when paired with laboratory notebook documentation. For environments requiring electronic records under FDA 21 CFR Part 11, the JB1010 may be operated within a validated procedural framework where dispensing logs are manually transcribed and signed.

Applications

• Standard addition calibration in ICP-MS and ICP-OES for matrix-matched quantification of trace metals in environmental water, biological fluids, and geological digests
• Internal standard introduction during multi-element analysis to correct for plasma instability and nebulization efficiency drift
• Preparation of calibration series for AAS and UV-Vis assays requiring precise incremental spiking
• Controlled reagent addition in gravimetric and volumetric titration pre-analytical steps
• Method development studies evaluating spike recovery across complex sample matrices

FAQ

Is the JB1010 compatible with organic solvents such as methanol or acetonitrile?
No. The fluid path materials are selected for aqueous acidic and neutral applications only. Organic solvents may compromise seal integrity and are not supported.
Can the JB1010 be used for direct injection into autosampler vials?
Yes—when equipped with appropriate tubing and tip geometry, it can dispense directly into standard 15–50 mL polypropylene or borosilicate glass vials commonly used in ICP sample introduction.
Does the device support variable aspiration/dispense speeds?
Yes. Three preset flow rates (low/medium/high) are available to optimize delivery for low-surface-tension or foaming solutions.
How often is recalibration required?
Annual verification is recommended per ISO/IEC 17025 Clause 6.5.2; however, users should perform interim checks before critical analyses using certified reference materials.
Is third-party service support available outside China?
AECC provides technical documentation and remote diagnostics support globally; on-site service is coordinated through authorized regional distributors with certified field engineers.