AAS for RoHS

Atomic Absorption Spectroscopy is an elemental analysis technique for determining the concentration of a particular element within a sample and can be used for measurement of 3/4 RoHS elements in one sample.

Benefits for RoHS

• Element analysis at PPM (flame) or PPB (furnace) levels.
• Mid - Low level analysis (quantification and verification) of Pb, Hg, and Cd; total Cr screening is also possible.
• Easy to Learn and Use
• Flexibility and Productivity of Dual Atomizer Design

Additional Information:
To ensure the required homogeneity of the sample (per RoHS testing definition), samples need to be disassembled, mechanically prepared as appropriate using grinding and digested via a range of microwave or acid digestions or dry ashing techniques. Suggested sample pretreatment methods include EPA 3050b/3051/3052.

Atomic Absorption Spectroscopy is an elemental analysis technique for determining the concentration of a particular element within a sample. AAS is a solution-based technique so a solid sample must first be digested. The sample is then either aspirated into a flame (FAAS) or injected into a graphite cuvette (GFAAS) where the sample can be dissociated into free atoms. Atomic Absorption is the process that occurs when a ground state atom absorbs energy in the form of light of a specific wavelength (provided by a hollow cathode lamp) and is elevated to an excited state. As the number of atoms of the selected element increases in the light path the amount of energy absorbed will increase. The amount of light that is absorbed by the sample, and hence the concentration of the element, can then be determined.

Thermo Scientific AA Spectrometers Help Detect Heavy Metal Elements for Compliance with New WEEE and RoHS Directives

Thermo Fisher Scientific product offerings:

M Series Systems.

S Series Systems.