Direct Oil Injection ICP Spectrometer for Petrochemical Trace Metal Analysis HM-ICP1

Product Introduction

Elemental analysis in petrochemical laboratories faces persistent challenges: organic sample matrices cause carbon buildup in plasma torches, acid digestion of oils is time-consuming and introduces contamination risks, and high-purity argon requirements drive up daily operating expenses. The HM-ICP1 addresses these pain points with a purpose-built design for the petrochemical sector.

The instrument's direct oil sample introduction system couples a semiconductor-cooled spray chamber operating at -20°C with oxygen-assisted delivery. This combination suppresses carbon deposition that typically plagues organic sample analysis in conventional ICP instruments, allowing gasoline, diesel, lubricating oils, and other petroleum products to be injected directly without acid digestion. For laboratories processing dozens of oil samples daily, this translates into substantial time savings and reduced reagent consumption.

At the core of the detection system, dual photomultiplier tubes (R212/R928) with negative high voltage adjustable from -50 to -1000V provide the sensitivity needed for trace-level determinations. The 4320-groove imported grating achieves resolution within 0.005nm — fine enough to resolve spectral interferences between adjacent emission lines in complex oil matrices. The precision thermostat maintains the optical path at ±0.1°C, ensuring wavelength stability during extended batch runs.

Operationally, the instrument runs on standard 99.99% argon gas rather than the 99.999% high-purity grade required by many competing systems, reducing gas costs by at least one-third. Full-auto ignition with impedance matching simplifies daily startup, while intelligent flame monitoring provides automatic shutdown protection against abnormal plasma conditions.

Applications

• Refinery quality control — direct injection analysis of gasoline and diesel for Si, P, Fe, Mn, Pb, and other trace elements without sample pretreatment

• Lubricant condition monitoring — determination of 20+ wear metal elements in lubricating oils and additives after simple dilution; optional high-salt nebulizer enables direct used-oil analysis

• Crude oil assay — comprehensive multi-element profiling of 30+ elements in crude oil and associated byproducts

• Petrochemical feedstock purity — elemental content verification in methanol, ethanol, and other intermediate materials

• Automotive urea (DEF) testing — quantification of Na, K, Ca, Mg, Al, Fe, Ni, Cu, Zn, Cr in diesel exhaust fluid

• Oilfield tracer studies — detection and quantification of rare earth element tracers in reservoir monitoring

Key Features & Advantages

1. Direct oil injection with -20°C cooling — semiconductor-cooled spray chamber eliminates carbon deposition from organic samples; no acid digestion required for gasoline, diesel, or lubricating oils

2. Oxygen-assisted sample introduction — auxiliary oxygen flow prevents soot formation in the plasma torch during organic matrix analysis

3. 4320-groove ultra-high resolution grating — achieves resolution within 0.005nm for clean spectral separation of overlapping emission lines in complex oil matrices

4. Dual PMT detection (R212/R928) — negative high voltage from -50 to -1000V allows optimization for each element; no detector cooling or purge gas needed

5. 70+ element coverage with ppb-level detection — suitable for trace impurity screening and major component quantification in a single run

6. 5–6 orders of magnitude linear range — simultaneous high and low concentration measurement eliminates the need for serial dilutions or standard curve switching

7. 99.99% argon gas operation — eliminates the cost of 99.999% high-purity argon, reducing daily gas expenses by at least one-third

8. Precision thermostat at ±0.1°C — maintains optical path stability for consistent wavelength accuracy across long batch sequences

9. High-precision MFC gas control — plasma gas, auxiliary gas, carrier gas, and oxygen all managed by mass flow controllers with continuous adjustability

10. Full-auto one-click ignition with impedance matching — reliable plasma startup without manual tuning

11. Intelligent flame monitoring with auto shutdown — fiber optic sensor detects abnormal flameout and immediately closes the RF power supply

12. 4-channel 12-roller peristaltic pump — steady sample uptake with continuously adjustable speed for different oil viscosities

13. 2D observation position adjustment — software-controlled torch positioning with signal feedback locates optimal viewing height for each method

14. Czerny-Turner optical path with 1000mm focal length — long focal length delivers high dispersion for clean spectral resolution

15. Scanning speed of 5–10 elements per minute — adequate throughput for targeted petrochemical method workflows

16. VF conversion signal acquisition — robust analog-to-digital conversion for stable photometric measurements

Technical Specifications

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