Yoke IC-hope1200 Ion Chromatograph

Overview

The Yoke IC-hope1200 Ion Chromatograph is a modular, benchtop analytical system engineered for high-precision separation and quantitative detection of inorganic anions and cations in complex aqueous matrices. It operates on the fundamental principle of ion-exchange chromatography, where analytes are separated based on their charge, size, and affinity toward functionalized stationary phases under controlled eluent composition and flow dynamics. The system integrates a low-pulse, dual-plunger PEEK pump, thermally stabilized column compartment, electrolytic self-regenerating suppressor, temperature-controlled conductivity detector, and optional pulsed amperometric detector (PAD) — enabling both suppressed and non-suppressed conductometric detection as well as selective electrochemical detection of carbohydrates, amino acids, and other electroactive species. Its fully inert PEEK fluidic path ensures compatibility with acidic, alkaline, and organic-modified eluents across the full operational pressure range (up to 35 MPa), supporting method robustness in environmental, pharmaceutical, food safety, and industrial QC laboratories.

Key Features

• Fully modular architecture with hot-swappable detection modules — conductivity, amperometry, or hybrid configurations — without hardware reconfiguration.
• 7.0-inch integrated touchscreen HMI with real-time visualization of six critical parameters: conductivity signal, current output, flow rate, range setting, system pressure, and six-port valve position — all synchronized with PC-based control software.
• Intelligent column oven with active thermal regulation (±0.029 °C/h stability) and automatic pre-heating logic to maintain optimal separation efficiency and extend column lifetime.
• Electrolytic self-regenerating suppressor eliminates manual chemical regeneration, reduces background conductivity, and improves signal-to-noise ratio for trace-level anion analysis.
• Automated system maintenance routines including scheduled line flushing, valve position auto-recognition, and component status logging — reducing operator dependency and minimizing downtime.
• Industrial-grade electromagnetic shielding and hardened electronic components ensure stable operation in electromagnetically noisy laboratory environments.
• Full PEEK fluidic pathway from pump head to detector cell — resistant to corrosion from strong acids (e.g., HNO₃, H₂SO₄), bases (e.g., KOH, NaOH), and mixed organic-aqueous solvents.

Sample Compatibility & Compliance

The IC-hope1200 accommodates a broad spectrum of sample types including drinking water, wastewater, soil extracts, biological fluids (urine, serum), pharmaceutical excipients, semiconductor process chemicals, and food digestates. Its eluent concentration flexibility (0.1–100 mM) and wide flow rate range (0.001–10.000 mL/min) support standardized methods such as EPA Method 300.0/300.1 (anions), ASTM D4327 (cation analysis), ISO 14911 (water quality), and USP (conductivity testing). When deployed with validated software and documented SOPs, the system meets foundational requirements for GLP and GMP environments — including electronic signature support, audit trail generation, user access controls, and instrument state logging aligned with FDA 21 CFR Part 11 Annex 11 expectations.

Software & Data Management

The IC-hope1200 is operated via Yoke ChromoView™ — a dual-interface platform supporting both embedded touchscreen control and Windows-based desktop application. ChromoView™ provides real-time chromatogram display with adjustable sampling frequency, peak integration using tangent skim or valley-to-valley algorithms, baseline correction, and customizable report templates compliant with ISO/IEC 17025 reporting conventions. All raw data files (.ycd) include embedded metadata: timestamp, method ID, operator login, instrument serial number, and complete parameter history. Data export options include CSV, PDF, and CDF formats. Optional LIMS integration is supported through ASTM E1384-compliant ASCII output and ODBC connectivity.

Applications

• Environmental monitoring: Quantification of regulated anions (F⁻, Cl⁻, NO₂⁻, Br⁻, NO₃⁻, PO₄³⁻, SO₄²⁻, ClO₂⁻, ClO₃⁻) and disinfection by-products in drinking and surface water per EPA guidelines.
• Pharmaceutical QA/QC: Counter-ion profiling of APIs, residual acetate or chloride in lyophilized formulations, and sulfate testing in injectables per USP .
• Food & beverage safety: Nitrate/nitrite screening in cured meats, bromide in bakery products, iodide in dairy, and sulfite in wines.
• Power generation: Trace chloride and sulfate analysis in boiler feedwater and nuclear coolant streams to prevent stress corrosion cracking.
• Academic research: Multi-dimensional ion speciation studies, ligand exchange kinetics, and method development for novel stationary phases.

FAQ

What detection modes does the IC-hope1200 support?

It supports suppressed conductivity detection, non-suppressed conductivity detection, pulsed amperometric detection (PAD), and simultaneous conductivity–amperometry in series configuration.
Is the system compatible with potassium hydroxide (KOH) eluents?

Yes — the entire fluidic path is constructed from PEEK and chemically resistant elastomers, enabling stable operation with KOH gradients up to 100 mM at elevated temperatures.
Can the IC-hope1200 be integrated into an existing LIMS environment?

Yes — via ASTM E1384-compliant ASCII data export, ODBC drivers, and configurable metadata tagging for automated ingestion into enterprise LIMS platforms.
Does the instrument meet regulatory requirements for audit trails and electronic signatures?

When configured with validated ChromoView™ software and appropriate administrative controls, it supports FDA 21 CFR Part 11-compliant audit trails, role-based access, and electronic signature capture.
What is the maximum operating pressure for the dual-plunger pump?

The pump is rated for continuous operation up to 35 MPa (350 bar), with flow accuracy of ±0.1% and precision of ≤0.1% RSD at 1.0 mL/min.