15-Day
Refurbishment cadence
OEM-Spec
Verified against OEM and published benchmarks; report included.
On-Staff
Solution Scientists
Since 1996
Three decades supporting labs
What you are buying
A refurbished and warrantied Agilent 1200 Series G1362A refractive index detector (RID). It measures refractive index for compounds without a chromophore, such as sugars and polymers.
Every unit moves through the GenTech Certified process. Solution Scientists disassemble and inspect each module, replace all consumables and degraded wear components, then tune and calibrate the instrument and verify performance against OEM and published benchmarks using known reference chemicals. The instrument ships with its verification report. A certified-refurbished system gives you that performance without the capital cost or the lead time of a new purchase.
What Agilent says about this platform
Agilent engineered the 1200 Series Refractive Index Detector (RID) as the ultimate universal detection solution for analytes that lack functional chromophores. Agilent highlights this module for its advanced, electronically temperature-controlled optics block, which minimizes environmental thermal drift to yield unmatched baseline stability and reproducible peak areas. Equipped with a durable 40,000-hour tungsten lamp and automated light intensity balancing, the G1362A prepares for stable analytical runs in less than two hours from standard startup. It stands as a rugged, highly dependable choice for walk-up high-performance liquid chromatography (HPLC) configurations requiring automated solvent recycling and programmatic reference purging to lower daily operational overhead.
What this module does
Refractive index detection
As a standalone refractive index detector, the Agilent G1362A operates as a deflection-based differential refractometer, executing several precision optical tasks:
- Universal Compound Tracking: It continuously measures changes in the mobile phase’s light-bending properties relative to a static reference solution, allowing the system to detect any substance with a different refractive index than the pure solvent.
- Precision Temperature Insulation: It fully encloses the internal optical array and the flow cell within an isolated heating chamber (controllable up to 55 °C) to isolate analytical baselines from external laboratory HVAC drafts.
- Automated Solvent Recycling: It controls an integrated purge and recycle valve to divert pristine mobile phase back into the main solvent reservoir between active sample peaks, minimizing waste generation during unattended sequences.
- Fast Baseline Standardization: It responds to electronic commands via ChemStation or OpenLab software to automate internal optical zeroing and automated reference cell flushing routines.
| In this catalog listing | |
| Agilent 1200 RID G1362A | Verified |
| Warranty Coverage Extended Options Available | Included |
| Each module is individually serialized and performance-verified before the stack is assembled and tested as a complete system. | |
Technical detail
| Detection Method | Deflection method refractometer architecture |
| Refractive Index Range | 1.00 to 1.75 RIU (calibrated operational limit) |
| Measurement Range | ± 600 × 10⁻⁶ RIU dynamic capture spectrum |
| Short-Term Baseline Noise | <± 2.5 × 10⁻⁹ RIU (using water at 1.0 mL/min flow) |
| Long-Term Drift | < 200 × 10⁻⁹ RIU per hour |
| Maximum Data Rate | Up to 37 Hz acquisition frequency |
| Flow Cell Design | 8 µL internal cell volume with a 5 bar (73 psi) maximum pressure threshold |
| Optics Temperature Control | Programmable from 5°C above ambient to 55°C |
| Valves & Fluidics | Automated reference purge valve and automatic solvent recycle valve |
| pH Range Tolerance | 2.3 to 9.5 operational range |
| Software Control | Agilent ChemStation, OpenLab, MassHunter, or Waters Empower via Agilent ICF |
*OEM specifications for brand new instrument.
What “GenTech Certified” means
Refurbishment at GenTech is a defined process, not a wipe-down. Every system moves through the same specific stages.
1. Disassembly and rebuild. Solution Scientists strip the instrument down, clean each module inside and out, and rebuild it from the frame up. They replace pump seals, pistons, and check valves to specification.
2. Configuration and new parts. Solution Scientists install the options and modules you selected and fit new wear parts throughout. They replace the detector lamp with a new one and reset the lamp hours.
3. Diagnostic and performance testing. Solution Scientists tune and calibrate the instrument, run system diagnostics, and confirm detector wavelength accuracy. They test full-system pressure and gradient performance against OEM and published benchmarks using known reference chemicals.
4. Delivery and installation. The instrument ships in protective packing with a one-year warranty option and professional installation available from a GenTech Solution Scientist.
Labs that run this system
The 1200 HPLC is method-compatible across the techniques most regulated and research labs run every day. These are the application areas buyers ask about most.
Excipient and Non-UV Compound Profiling
Pharma QC laboratories rely on the G1362A to analyze non-chromaphoric formulation components, such as sugar alcohols, starches, and polyethylene glycol excipients. The detector’s stable baseline allows for precise, repeatable raw material verification and final product stability testing.
Concentrated Surfactant and Polyol Screening
Industrial waste and environmental monitoring facilities deploy the G1362A to analyze non-chromaphoric runoff contaminants, including industrial polyols, polyethylene glycols, and heavy non-ionic surfactants. The automated recycle valve continuously lowers the operational solvent costs of these high-volume screening operations.
Automated Carbohydrate and Sugar Profiling
Food safety and beverage processing facilities utilize the G1362A for the precise quantification of non-UV absorbing simple sugars, including glucose, fructose, and sucrose, in finished products. The pulse-free baseline stability ensures rapid, highly repeatable nutritional profile validation.
Non-Psilocybin and Sugar Adulterant Extraction
Natural product and botanical profiling facilities utilize the universal response of the 1200 RID to map non-UV sensitive matrices, including sugars, lipids, and bulk carrier oils. This setup delivers accurate internal adulteration tracking without compound-specific optimization.
Size Exclusion & Gel Permeation Chromatography (SEC/GPC)
Polymer research and materials characterization laboratories rely on this differential refractometer to track molecular weight distributions during GPC workflows. The detector’s stable response enables highly precise tracking of polymer chains lacking traditional UV chromophores.
Excipient and Cutting Agent Profiling
Crime laboratories utilize refractive index tracking to profile bulk seized illicit matrices containing highly complex mixtures of inactive cutting excipients, including starches, lactose, and sugar alcohols. This technique provides comprehensive background profile mapping alongside legal chain-of-custody tracking.
| Weight | 38 lbs |
|---|---|
| Dimensions | 24 × 24 × 24 in |
| Condition | Refurbished |
| Model | G1362A |
| OEM | Agilent Technologies |
| Financing | Financing Options Available |
Finance Your Laboratory Instruments with Confidence. Options that fit your budget.
GenTech Scientific, powered by Trio Capital, offers tailored financing options for your next equipment lease or instrument purchase. We make financing simple so you can obtain the equipment you need, maximize your lab’s budget, and focus on the science.
Need another single module?
Replacing a failed pump or expanding an existing stack? Shop our inventory of performance-verified HPLC modules and upgrades.
