DeChem-Tech CleverChem Petro Automated Petroleum Water Quality Analyzer

Overview

The DeChem-Tech CleverChem Petro is a fully automated discrete analyzer engineered for high-throughput, standardized wet-chemical analysis of water and wastewater matrices in petroleum refining, petrochemical, and industrial utility laboratories. It implements segmented flow analysis (SFA) principles—distinct from continuous flow systems—by precisely dispensing discrete sample and reagent volumes into individual quartz or glass cuvettes, followed by controlled incubation, colorimetric reaction development, and photometric quantification. This architecture ensures strict adherence to standardized reaction kinetics, eliminating inter-sample carryover and enabling method traceability per ISO 7027, ISO 15681, EPA Methods 353.2, 365.2, 365.3, and GB/T standards. Designed for regulatory compliance environments, the system supports audit-ready operation under GLP and GMP frameworks, with full instrument control, method versioning, and electronic signature capability aligned with FDA 21 CFR Part 11 requirements.

Key Features

• True discrete analysis platform with independent cuvette-based reaction vessels—no shared manifolds or tubing, ensuring zero cross-contamination between samples or methods.
• High-precision microdispensing system with 1 µL resolution across both sample and reagent channels, delivering volumetric accuracy ≤±0.5% CV at 10 µL and ≤±0.2% CV at ≥100 µL.
• Programmable thermal control of the cuvette carousel (ambient to 49.6 °C), maintaining reaction temperature stability within ±0.01 °C at 37 °C—critical for enzymatic and kinetic assays such as total phosphorus hydrolysis or nitrate reduction.
• Multi-wavelength photometric detection using a 24-bit digital absorbance detector with nine user-selectable interference filters (340–880 nm) plus one dedicated reference filter, supporting simultaneous dual-wavelength correction and background subtraction.
• Automated method sequencing: up to 16 analytical methods can be queued and executed without manual intervention; method switching includes automatic reagent line priming, cuvette conditioning, and optical calibration.
• Integrated resource monitoring: real-time level sensing for reagent bottles, wash solution reservoirs, and waste containers, with configurable alerts for low-volume and overflow conditions.

Sample Compatibility & Compliance

The CleverChem Petro accepts liquid samples in standard 5 mL polypropylene tubes and accommodates turbid, colored, or suspended-solid-laden matrices typical of refinery blowdown, cooling tower water, boiler feedwater, and process wastewater—without requiring pre-filtration in most cases. Its open chemistry architecture permits use of non-proprietary reagents, including domestically manufactured kits compliant with ASTM D129, D511, D3370, D3869, and ISO 6878, 11908, 15681-1. All analytical protocols are validated against certified reference materials (CRMs) and verified per ISO/IEC 17025:2017 clause 7.2.2 for method verification. The system meets CE marking requirements for laboratory instrumentation (2014/30/EU EMC Directive and 2014/35/EU LVD Directive) and supports IQ/OQ/PQ documentation packages for regulated site qualification.

Software & Data Management

Control and data acquisition are managed via CleverControl v5.x software—a Windows-native application compatible with Windows 7 through Windows 11 (64-bit). The software provides full method editor functionality, including step-by-step protocol definition (aspiration, mixing, incubation, measurement, cleaning), calibration curve generation (linear, quadratic, log-log, 4-/5-parameter logistic), and QC rule enforcement (Westgard rules, user-defined limits). All raw absorbance values, intermediate calculations, and final concentrations are timestamped and stored in an embedded SQL database with optional export to CSV, Excel, or direct LIMS integration via ASTM E1394-compliant HL7 or ODBC drivers. Audit trails record every user action—including method edits, result overrides, and calibration events—with immutable timestamps and operator ID linkage.

Applications

The CleverChem Petro delivers routine and compliance-driven analysis across multiple critical parameters in petroleum industry water streams: total nitrogen (TN) and total phosphorus (TP) for nutrient discharge reporting; ammonia-N, nitrate-N, and nitrite-N for biological treatment monitoring; orthophosphate and silicate for corrosion inhibitor management; sulfate and chloride for scaling potential assessment; hexavalent chromium and total phenol for hazardous constituent tracking; and Fe, Zn, K, F⁻, and sulfide for catalyst poisoning and equipment integrity evaluation. It is routinely deployed in refinery central labs, offshore platform QA/QC facilities, and third-party environmental testing laboratories serving upstream, midstream, and downstream operations.

FAQ

Does the CleverChem Petro support EPA-approved methods?
Yes—it natively executes EPA Methods 353.2 (nitrate/nitrite), 365.2 (orthophosphate), 365.3 (total phosphorus), and 375.4 (cyanide), with validation reports available upon request.
Can it analyze undiluted high-salinity produced water?
Yes—integrated auto-dilution functionality handles samples with analyte concentrations exceeding upper calibration limits, applying programmable dilution factors from 1:2 to 1:100 without manual intervention.
Is remote diagnostics and software update support available?
Yes—DeChem-Tech provides secure remote access for technical support and firmware updates via encrypted TLS tunnel, subject to customer-configured firewall permissions.
What maintenance intervals are recommended?
Daily: cuvette cleaning verification and waste level check. Weekly: pipetting accuracy verification using gravimetric test. Annually: photometer wavelength calibration and temperature sensor validation per ISO/IEC 17025.
Can custom methods be developed and validated internally?
Yes—the open method editor allows full customization of reaction sequences, timing, temperatures, and detection parameters; method validation templates follow ICH Q2(R2) guidelines for accuracy, precision, linearity, and robustness assessment.