KEZHE GOODSPE-80 CNC Multi-Channel Solid Phase Extraction System

Overview

The KEZHE GOODSPE-80 CNC Multi-Channel Solid Phase Extraction System is an engineered solution for high-throughput, reproducible sample preparation in analytical laboratories. Based on positive-pressure liquid delivery—rather than vacuum-driven flow—the system ensures precise, consistent, and contamination-free elution across all eight parallel extraction channels. This architecture eliminates reliance on external vacuum pumps, reduces operator exposure to volatile organic solvents, and delivers superior flow stability under variable backpressure conditions typical of densely packed sorbent beds. Designed for method development, routine QC, and regulatory-compliant workflows, the GOODSPE-80 supports column-based solid-phase extraction (SPE) according to standardized protocols referenced in EPA Method 500/600 series, ISO 17025-accredited laboratories, and USP chromatographic sample preparation guidelines.

Key Features

• Eight independent SPE channels with fully programmable, per-channel flow control (0.01–15 mL/min) and timing (0–99 min), enabling method optimization and parallel multi-analyte workflows.
• CNC-controlled positive-pressure pump system using precision stepper motor actuation (U.S. patented motor design) — delivering low noise (<45 dB), low power consumption, and built-in overpressure protection (max 1.2 MPa).
• 4.3-inch industrial-grade TFT serial touchscreen interface with intuitive icon-based navigation; parameters stored in non-volatile memory for method recall and audit trail readiness.
• Chemically inert fluid path constructed from 316 stainless steel, PTFE, borosilicate glass, and PEEK — compatible with aggressive solvents including acetonitrile, methanol, dichloromethane, and 0.1 M HCl or NaOH.
• Modular column mounting rack accommodating 1 mL, 3 mL, and 6 mL SPE cartridges (standard); custom adapters available for alternative formats (e.g., 10 mL, 20 mL, disk-based formats).
• Integrated 24-position fraction collector with dedicated zones for 1 mL, 3 mL, and 6 mL cartridge eluates; accepts standard 15 mm OD × 100–150 mm borosilicate glass tubes.
• Aluminum sandblasted frame with epoxy-polyester powder-coated enclosure; phosphated chassis and corrosion-resistant top plate for long-term durability in demanding lab environments.
• No robotic arm or auto-sampler mechanism — reducing mechanical failure points and minimizing maintenance intervals while retaining full automation capability.

Sample Compatibility & Compliance

The GOODSPE-80 is validated for extraction of diverse analyte classes from complex matrices including environmental water, soil extracts, food homogenates, biological fluids (urine, plasma), and forensic evidence swabs. It meets functional equivalency requirements for EPA 8270D (semivolatile organics), EPA 8081B (PCBs), ISO 18856 (pesticide residues in food), and EU Commission Regulation (EU) No 37/2010 (veterinary drug residues). All wetted components comply with FDA CFR Title 21 Part 11 data integrity expectations when paired with validated LIMS or CDS software. Instrument design adheres to IEC 61010-1 safety standards for laboratory electrical equipment.

Software & Data Management

The system operates autonomously via embedded firmware without requiring external PC control. However, optional RS-232/USB connectivity enables integration with laboratory information management systems (LIMS) or chromatography data systems (CDS) for electronic record generation. Method files include timestamped execution logs, flow rate profiles, and stepwise event tracking — supporting GLP/GMP-aligned documentation and 21 CFR Part 11-compliant audit trails when deployed with qualified third-party software. Firmware updates are delivered via USB flash drive with version-controlled release notes.

Applications

• Environmental analysis: extraction of PAHs, PCBs, dioxins, phthalates, organochlorine pesticides, and phenolic compounds from wastewater, sediment, and air particulate filters.
• Food safety testing: cleanup of pesticide residues (e.g., organophosphates, neonicotinoids), veterinary drugs (tetracyclines, sulfonamides), mycotoxins (aflatoxin B1), and adulterants (melamine, Sudan dyes) from fruits, grains, dairy, meat, and honey.
• Forensic toxicology: isolation of controlled substances (opioids, benzodiazepines), rodenticides (brodifacoum), and explosive residues (TNT, RDX) from blood, hair, and tissue specimens.
• Cosmetic and fragrance analysis: removal of matrix interferences prior to GC-MS detection of allergenic fragrances, preservatives (parabens), and prohibited colorants (azo dyes).
• Life sciences: desalting and concentration of peptides, nucleotides, and small-molecule metabolites from cell lysates or fermentation broths.

FAQ

Does the GOODSPE-80 require an external vacuum pump?

No — it utilizes integrated positive-pressure delivery, eliminating vacuum pump dependency and associated variability in flow rate.
Can different SPE protocols run simultaneously across the 8 channels?

Yes — each channel is independently programmable for load/wash/elute steps, solvent selection, flow rate, and timing.
What column formats are supported out-of-the-box?

Standard support for 1 mL, 3 mL, and 6 mL cartridges; custom fittings available for alternative geometries upon request.
Is the system compliant with 21 CFR Part 11 for regulated labs?

The hardware supports Part 11 compliance when integrated with validated electronic record software; standalone operation provides full execution logs but requires external validation for signature and audit trail functions.
What maintenance is required for long-term reliability?

Routine cleaning of PEEK tubing and column adapters with appropriate solvents; no scheduled lubrication or calibration is needed due to stepper motor-based actuation and factory-trimmed pressure sensors.