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Brand: Sitelab
Sitelab UVF-Trilogy TPH Oil Analyzer
Description
Overview
The Sitelab UVF-Trilogy TPH Oil Analyzer (Model No. 7200-004-TPH) is a benchtop ultraviolet fluorescence instrument built to measure total petroleum hydrocarbons across the C15–C50 oil and grease range, the heaviest fraction covered by Sitelab’s UVF-Trilogy platform. Seven Star LLC supplies it to environmental consultancies, marine terminal operators and oil and gas producers across Oman and the wider GCC who need fast, laboratory-grade oil-in-water and oil-in-soil screening without shipping every sample offsite. Each analyzer arrives factory calibrated with Sitelab’s own TPH-Oil reference standards, so it produces defensible quantitative results as soon as it is unboxed and connected to power.Seven Star LLC supplies this item on request with the manufacturer documentation, and availability and lead time are confirmed at quotation.
Working Principle
The Sitelab UVF-Trilogy TPH Oil Analyzer excites a solvent-extracted sample with an ultraviolet LED tuned to the TPHOIL module’s specific wavelength and optical filter, measuring the fluorescence response of the aromatic content in heavier crude oils, waste oils, and fuel oils. Results from the Sitelab UVF-Trilogy TPH Oil Analyzer compare well to EPA Methods 1664 or 9071B by gravimetric analysis and to many other TPH gas chromatography methods, giving operators a fast screening tool whose readings correlate meaningfully with standard laboratory confirmatory testing. The instrument performs the same fundamental measurement as Sitelab’s smaller handheld UVF-500D analyzer, but achieves lower detection limits thanks to the benchtop platform’s larger optical path and more sensitive photodetector.
Engineering Design
The Sitelab UVF-Trilogy TPH Oil Analyzer shares the same rugged benchtop housing as the rest of the Trilogy family: an intuitive touch screen interface, storage for up to 18 calibrations in onboard memory, and a snap-in UV module bay so the TPHOIL module can be paired with GRO, EDRO, or PAHs modules on a single instrument. Every unit ships with a glass sample cuvette and solvent dispenser bottle included, and spare quartz cuvettes are available separately under part number QCUV-10MM. For work beyond Seven Star’s client sites in Oman, the optional heavy-duty waterproof field case (part number 7200-UVFCASE) adds a rechargeable 120V battery so the Sitelab UVF-Trilogy TPH Oil Analyzer can be deployed to a marine bunkering terminal, produced water facility, or bilge water treatment plant.
Key Features
The Sitelab UVF-Trilogy TPH Oil Analyzer covers the full C15–C50 oil and grease range in a single test, addressing crude oils, waste oils, heavy fuel oils, and produced or oily water in one calibrated instrument. Calibration kits are matrix-specific: part numbers CAL-057H and CAL-056H are hexane-based for oil-in-water analysis, while CAL-057M and CAL-056M are methanol-based for oil-in-soil analysis, letting the TPH Oil Analyzer be tuned precisely to the sample type under investigation. The touch screen interface simplifies sample measurement, calibration, and mode selection, and a full TPH result is available in minutes rather than the days a laboratory turnaround typically requires.
Industrial Applications
Seven Star positions the Sitelab UVF-Trilogy TPH Oil Analyzer for crude oil spill investigations, waste oil and heavy fuel oil screening, produced water and oily water discharge monitoring, and bilge water compliance testing on marine vessels. Oman’s port authorities, marine bunkering terminals, and offshore oil and gas platforms across the GCC all generate a steady need for on-site TPH-oil screening that the analyzer can address without waiting on outside laboratory gravimetric analysis. Wastewater treatment operators monitoring produced water discharge limits, and shipping companies verifying bilge water compliance before discharge, likewise rely on the Sitelab UVF-Trilogy TPH Oil Analyzer to screen samples quickly before committing to confirmatory laboratory testing.
| Specification | Detail |
|---|---|
| Model Number | 7200-004-TPH |
| Detection Technology | Ultraviolet fluorescence (UVF) |
| Target Analyte Range | Total petroleum hydrocarbons (TPH), C15–C50 oil and grease range |
| Sample Types | Oil in water, oil in soil, crude oils, waste oils, heavy fuel oils, produced/oily water, bilge water |
| Reference Methods | Correlates with EPA Methods 1664 or 9071B (gravimetric) and other TPH GC methods |
| Calibration Kits | CAL-057H/CAL-056H (hexane, oil in water) and CAL-057M/CAL-056M (methanol, oil in soil) |
| Calibration Storage | Up to 18 calibrations in onboard memory |
| Interface | Intuitive touch screen |
| Sample Accessories | Glass cuvette and solvent dispenser bottle included |
| Platform | UVF-Trilogy benchtop analyzer with snap-in TPHOIL UV module |
| Optional Field Case | Part No. 7200-UVFCASE, waterproof case with rechargeable 120V battery |
Because heavy oil contamination often needs to be distinguished from lighter diesel-range or gasoline-range hydrocarbons at the same site, the Sitelab UVF-Trilogy TPH Oil Analyzer’s snap-in module design lets clients add EDRO, GRO, or PAHs modules to the same chassis, or step up to the four-module Fingerprinting Analyzer for complete forensic characterization of a mixed petroleum release. Seven Star’s technical team helps environmental consultancies and industrial operators across Oman and the GCC determine the right module configuration before committing to a purchase. With engineering support in Muscat, Seven Star LLC supplies the Sitelab UVF-Trilogy to laboratories, industrial facilities, and research institutions throughout Oman, Muscat, and the Sohar and Salalah economic zones, with technical support with selection.
Heavier oil-range hydrocarbons behave differently in the field than lighter diesel or gasoline-range fractions, and site teams often ask how the analyzer holds up outside a controlled laboratory. Because the TPHOIL module is factory calibrated against real matrix standards rather than a single generic solvent, the instrument keeps its accuracy across the heavy oils likely on an active site, from bunker fuel residues at a marine terminal to crude oil sheen on produced water. Operators running a spill response or routine discharge-compliance program can log a defensible TPH-oil reading in the field within minutes rather than waiting days for a gravimetric laboratory result, and onboard calibration storage lets a single instrument move between sample types during a shift without a recalibration delay. Our engineering team has found that clients running marine bunkering operations or offshore production platforms in Oman and the wider GCC particularly value this speed, since a fast preliminary result shows immediately whether a confirmatory laboratory sample is needed, saving time on sites that would otherwise send every sample offsite.
Request a Quote for Sitelab UVF-Trilogy TPH Oil Analyzer
Seven Star LLC supplies the Sitelab UVF-Trilogy TPH Oil Analyzer and the complete family of Sitelab UVF hydrocarbon test equipment to environmental consultants, marine terminal operators, and oil and gas producers across Oman and the wider GCC region. For pricing, calibration kits, or technical guidance on selecting the right UVF module configuration for your oil-range hydrocarbon screening program, contact our engineering team for a tailored quotation and application support. Seven Star LLC supplies the Sitelab UVF-Trilogy on request with manufacturer documentation and regional technical support.
Other Models in the Sitelab UVF-Trilogy Analyzers Range
Seven Star LLC supplies models from the Sitelab UVF-Trilogy Analyzers range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Sitelab UVF-Trilogy EDRO Analyzer | Liquid Analytical Systems | View details |
| Sitelab UVF-Trilogy GRO Analyzer | Liquid Analytical Systems | View details |
| Sitelab UVF-Trilogy PAHs Analyzer | Liquid Analytical Systems | View details |
| Sitelab UVF-Trilogy TPH Oil Analyzer | Liquid Analytical Systems | You are viewing this model |
| Sitelab UVF-Trilogy Fingerprinting Analyzer | Liquid Analytical Systems | View details |
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Datasheets & Documents
- Instruction Manual Sitelab UVF-Trilogy TPH Oil Analyzer Manual Download
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About brand
Sitelab, founded in 1998 in West Newbury, USA, supplies ultraviolet fluorescence (UVF) analyzers for measuring petroleum hydrocarbons on site instead of waiting for a laboratory report. Seven Star LLC, an independent supplier in Oman, lists the Sitelab UVF-Trilogy in its TPH, GRO, EDRO, PAH and fingerprinting configurations, together with the handheld UVF-500D hydrocarbon analyzer for field work.
Sitelab analyzers listed here
Two instruments make up the range on this page. The UVF-Trilogy is the bench instrument, and the five listings differ by the analysis it is set up for:
- TPH oil: total petroleum hydrocarbons
- GRO: gasoline range organics
- EDRO: extended diesel range organics
- PAHs: polycyclic aromatic hydrocarbons
- Fingerprinting: comparing the fluorescence pattern of a sample with known products
The UVF-500D is a handheld unit used for oil in water and oil-contaminated soil. With UVF, the sample is extracted in solvent and the aromatic compounds in the extract fluoresce under ultraviolet light; the instrument reads that signal against calibration standards.
Where Sitelab UVF testing is used
The typical users are environmental consultants, remediation contractors and oilfield laboratories who need a number the same day: soil from a spill or tank excavation, sediment, groundwater, and oil in water. Typical jobs are contaminated land assessment and produced water checks. Screening results are normally confirmed by a laboratory method where a regulator requires it.
Ordering a Sitelab analyzer: what we need
Tell us which hydrocarbon ranges you need to report (GRO, EDRO, TPH, PAH), the sample types, and the concentration range you expect. For an existing instrument send the model and serial number, and say which calibration kits and consumables you need to replace. With that we can ask for the correct configuration and accessories in one quotation.
Browse Sitelab products by category: Liquid Analytical Systems, Portable Test & Measurement.
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Frequently Asked Questions
It measures total petroleum hydrocarbons (TPH) in the C15–C50 oil and grease range, covering crude oils, waste oils, heavy fuel oils, and oily water samples using ultraviolet fluorescence.
Results correlate well with EPA Methods 1664 and 9071B gravimetric analysis and other TPH gas chromatography methods, giving a fast field screening result that tracks with confirmatory laboratory testing.
CAL-057H and CAL-056H hexane-based kits are used for oil-in-water analysis, while CAL-057M and CAL-056M methanol-based kits are used for oil-in-soil analysis.
Yes. The snap-in UV module bay lets the TPHOIL module be paired with EDRO, GRO, or PAHs modules on the same chassis, or clients can step up to the four-module Fingerprinting Analyzer.
Yes, Seven Star LLC is an experienced supplier of Sitelab, supplying genuine Sitelab UVF-Trilogy with manufacturer documentation and technical support across Oman and the GCC.

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