ICP parts can be a bit overwhelming if you are new to inductively coupled plasma or ICP-MS — and that’s understandable. After all, there are a dizzying array of torches, nebulizers, spray chambers, and cones. Depending on where you live and work, ICP parts are called consumables, accessories, or components.
ICP consumables are the parts of the ICP system that come in direct contact with the sample solution or the plasma. The choice of ICP torches and consumables depends on several factors. For example, what you choose must consider the type of instrument, the application, and the supplier.
Proper maintenance is critical for accuracy, safety, and extending the life of your consumables. This may include daily, weekly, and annual procedures. The frequency of maintenance with ICP parts relies on factors such as sample volume and cumulative run time.
ICP Parts: Torches
ICP torches are essential for elemental analysis using inductively coupled plasma (ICP) techniques. They generate plasma that atomizes and ionizes samples for measurement. These torches are typically made of quartz or ceramic and can be one-piece or demountable.
Caring for Torches
To extend the lifespan of torches, regularly inspect them for signs of wear and devitrification. In addition, you should clean them with appropriate solvents to remove any residue. On average, torches need replacement every 3-6 months, depending on usage and maintenance.
ICP Parts: Nebulizers
Nebulizers convert liquid samples into fine aerosols for transport to the plasma. They can be pneumatic, ultrasonic, or direct injection types, each using different mechanisms for aerosol generation.
Caring for Nebulizers
Clean your nebulizers regularly to prevent clogging and ensure consistent performance. Use deionized water or suitable solvents for cleaning. The average lifespan of an ICP nebulizer is about 6-12 months, depending on the type and frequency of use.
ICP Parts: Spray Chambers
Spray chambers remove large droplets and solvent vapors from the aerosol before they enter the plasma. They come in various types, such as cyclonic, Scott, and double-pass, each with unique flow patterns.
Caring for Spray Chambers
Clean spray chambers regularly to maintain efficiency. Use mild detergents and rinse thoroughly with deionized water. Typically, spray chambers last 1-2 years with proper care.
ICP Parts: Cones
ICP cones are metal or ceramic nozzles that interface between the plasma and the mass spectrometer detector. They can be sampler or skimmer types, depending on their position and function in the ion optics system.
Caring for Cones
Inspect cones frequently for signs of wear or damage. Clean them with appropriate solvents to remove any buildup. ICP cones generally need replacement every 6-12 months, depending on the operating conditions.
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