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Inductively Coupled Plasma (ICP)

Inductively Coupled Plasma (ICP), also known as ICP-AES (Atomic Emission Spectrometry) or ICP-OES (Optical Emission Spectrometry) is used to analyse many elements simultaneously, with extremely low levels of detection.

It is used in a wide variety of markets including food and beverage, metals, pharmaceutical, geological, water and cement.

ICP operates using an argon plasma, into which the atomised liquid sample is injected. The sample ionises in the plasma and the ions emit light at different characteristic wavelengths which are then measured.

The argon used for the plasma must have the least amount of oxygen and moisture possible, as these have a shielding effect on the signal for some metals, giving falsely low readings. It also must have the lowest possible THC content, as these can cause carbon deposits which reduces the strength of the signal. Nitrogen is sometimes used as a cooling gas in the ICP.

​What Air Products' Gases are Used in ICP

Low Level of Total Hydrocarbon (THC) Impurities

Argon BIP® and Argon Premier ideally suited for ICP use.

Low Levels of Impurities, Moisture and Oxygen

Argon BIP® range, ideally suited for ICP-MS.

BIP® Technology Features In-Built Particle Filter

0.5 micron particle filter eliminates interfering particles containing metals from the gas.

Liquid Argon - CryoEase®

Micro-bulk solution, eliminates cylinder handling and changeovers. Compact footprint size versus cylinders.

Ask the Expert

"Which grade of argon is recommended for Inductively Coupled Plasma (ICP) Spectroscopy?"
We recommend Argon BIP® for very low concentration analysis and maximum possible resolution.

Questions? We've got answers.

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CryoEase® Microbulk Solutions

CryoEase® microbulk technology is a modern concept where your gas is supplied by filling on-site vs. the traditional method for smaller volume usage, where gas is supplied by swapping full for empty cylinders and dewars. CryoEase® microbulk supply features specially designed trucks with integrated controls and flexible storage tank options. End usage can be provided as pure gases, cryogenic liquids or gaseous mixtures via a blender installed at your site.