ICP Atomic Emission Spectrometer for Organic Solvent Analysis

What is the ICP Atomic Emission Spectrometer for Organic Solvent Analysis?

This ICP atomic emission spectrometer is configured for organic solvents such as kerosene, xylene and biodiesel. It is chosen for petroleum, lubricant and oil analyses that cannot be digested in aqueous acid.

Overview

Organic solvents present a high carbon load to the plasma, which can extinguish it, deposit carbon on the torch and change excitation conditions. This configuration addresses those issues with an oxygen addition line to the aerosol gas, a torch and injector suited to organic matrices, a cooled interface, and solvent-resistant pump tubing and nebulizer. Power and oxygen flow are increased, and a solvent washing sequence prevents residue build-up. The instrument measures metals and additives in petroleum products, wear metals in lubricants and catalyst residues in oils, often following ASTM D5185 and related methods. Sample preparation is minimal because oils are usually diluted in a suitable solvent such as kerosene or xylene rather than digested. Safety measures for flammable solvents and ventilation are essential.

How does it work?

An argon plasma at 6000 to 10000 K, sustained by a radio-frequency coil around a quartz torch, excites atoms and ions in the sample to higher energy states. As they return to lower states they emit light at element characteristic wavelengths. The emission is directed to a spectrometer that separates the wavelengths and measures their intensity, which is proportional to concentration over a wide range. Sample introduction converts the liquid into an aerosol through a nebulizer and spray chamber; organic solvents may need additional oxygen or a cooled interface. Because many lines are available, analysts select lines free from overlap and within the working range. Internal standards correct for drift and matrix effects, and background correction removes continuum and stray light. Plasma conditions are set by power, gas flows and observation position, and are optimized per method.

What are the key features?

• Oxygen addition line for carbon combustion
• Torch, injector and interface suited to organic matrices
• Solvent-resistant nebulizer and pump tubing
• Increased power and oxygen flow for stable plasma
• Solvent washing sequence to limit residue
• Compatible with dilution-only sample preparation

What are the technical specifications?

A typical icp atomic emission spectrometer for organic solvent analysis configuration offers wavelength range of 165–900 nm, sample type of organic solvents and oils, oxygen addition of mass flow controlled, detection limit of 0.05–1 mg/kg typical, RF power of 1300–1600 W and solvent resistance of PFA, PTFE and inert tubing. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The ICP Atomic Emission Spectrometer for Organic Solvent Analysis is used in wear metals in lubricating oils, additives and contaminants in fuels, biodiesel and vegetable oil analysis and catalyst residues in petrochemical products. Across the wider ICP-AES class, laboratories also deploy it for routine metals in water and wastewater, alloy, steel and metallurgical quality control and food and beverage multi-element analysis.

Which standards and certifications apply?

Relevant standards and methods include USP <730> Plasma Spectrochemistry, ISO 11885 Water quality — ICP-OES determination of elements, US EPA Method 200.7, ASTM D5185, EN 15763 Foodstuffs — Determination of trace elements and ISO/IEC 17025. Certification candidates for this model are CE, ISO 9001 manufacturing and IEC 61010-1 safety compliance; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Install ICP-AES systems with high-purity argon, adequate exhaust and stable power, and keep the room temperature controlled to protect optics and detectors. Organic solvent methods require additional safety measures because solvent vapor can extinguish the plasma or ignite, so oxygen addition and solvent-resistant tubing are used. Torches and injectors degrade through salt deposition and thermal stress and need scheduled inspection. Sample digestion in ultrapure acid avoids contamination and keeps dissolved solids low. Run daily wavelength calibration, a check standard and QC samples, and record torch, nebulizer and pump tubing usage. Argon consumption and chiller performance should be monitored because they affect cost and stability.

How do I select the right ICP Atomic Emission Spectrometer for Organic Solvent Analysis?

Select an organic-solvent configuration when samples cannot be digested in water, such as lubricants, fuels and oils, and when ASTM D5185 or an equivalent method applies. Specify the solvent, element list and detection limits. Confirm oxygen supply, solvent-resistant materials and ventilation for flammable solvents.

How does it compare with other ICP-AES variants?

Select an ICP-AES system by the sample type, the elements to be measured and the required throughput. Simultaneous instruments record many lines at once for large panels and high sample numbers, while sequential instruments offer flexibility and lower cost. Viewing configuration determines the balance between detection limits and matrix tolerance. Organic solvent analysis needs a torch, nebulizer and interface designed for volatile carbon loads and often an oxygen addition line. Inert sample paths are required for hydrofluoric acid digests and for high-purity semiconductor materials. Process and online systems add rugged enclosures and control interfaces. Confirm wavelength coverage, resolution, argon consumption and the software features your laboratory needs, including interference correction and audit trails.