ICP-OES and ICP-MS Analysis for 2D Materials

Recently, two-dimensional (2D) materials have found numerous applications in various scientific fields such as multiphase catalysis, gas storage, and environmental remediation. Accurate characterization of the purity of 2D materials is critical to their application results. Inductively coupled plasma emission spectrometry (ICP-OES) and mass spectrometry (ICP-MS) are fast, accurate, and non-destructive techniques that have been used for decades to detect trace contaminants in samples, respectively.

Alfa Chemistry offers ICP-OES and ICP-MS testing to analyze the composition and trace impurities in 2D materials such as graphene, which are critical to understanding their properties. Contact us today so we can help you with your 2D material testing!

Why ICP-OES / MS

ICP Analysis has low detection limits for chemical determinations, making it a useful tool for quality control applications, contamination analysis, etc.

ICP-OES: Also known as ICP-AES (atomic emission spectrometry), it is a flame technique for the determination of trace elements in prepared samples. Argon gas flowing through the ICP torch is ignited and ionized in an electromagnetic field, where a high-temperature plasma of approximately 7000 K is generated. Properly prepared samples are continuously drawn into this inductively coupled argon plasma discharge. The elements of interest reach the excited state and emit energy in the form of light when they return to the ground state with the wavelength characteristics of each particular element. The intensity of the light emission is measured at each specific wavelength and compared to the intensity of the previously measured concentration of the known element.

Fig 1. Excitation of an atom by a plasma.

ICP-MS: It uses a flame technique in which prepared samples are continuously drawn into an inductively coupled argon plasma discharge and ionized at high temperatures. Once converted to ions, they are brought into the mass spectrometer, where they are focused by an electrostatic lens, where they are separated by their mass-to-charge ratio, which allows ICP-MS to provide isotopic information for each element of interest.

Service Detail

Our requirements for samples are as follows:

• Alfa Chemistry requires no preprocessing:

The customer provides a 10 mL clear aqueous solution that is neutral to acidic and free of F ions and organics.

• Preprocessing required in Alfa Chemistry:

For powder and bulk samples: customer provides samples >100 mg;
Liquid samples: customers provide 5-10mL samples, if they contain organic solvents, please contact us.

• Detectable elements include but are not limited to:

Note:

• It is recommended to note the relevant information of the sample when inquiring, and we will preprocess according to the given information to ensure the accuracy of the results.
• All samples are non-refundable, please contact us if you have special requirements.

Reference

1. Wilschefski S, et al. (2019). "Inductively Coupled Plasma Mass Spectrometry: Introduction to Analytical Aspects." Clin Biochem Rev. 40(3): 115-133.

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Alfa Chemistry provides cost effective, high quality and hassle free services to our clients worldwide. We guarantee on-time delivery of our results.

If you have any questions at any time during this process, please contact us. We will do our best to meet your needs.