My position: Material Testing > Inductively Coupled Plasma Optical Emission Spectroscopy/Mass Spectrometry (ICP-OES/MS)
Inductively Coupled Plasma Optical Emission Spectroscopy/Mass Spectrometry (ICP-OES/MS)
Instrument model
ICP-OES:PerkinElmer 8300; PerkinElmer ICP 2100; ICAP7400; PerkinElmer Optima 5300 DV; OPTIMA 8000。 ICP-MS: PerkinElmer NexION 300X; iCAP6300
Service model
Commissioned test
Service cycle
8.2 working days
Service items

ICP-OES (Element concentration in ppm)

S$28 per element

ICP-MS(Element concentration in ppb)

S$38 per element
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Testing Description

Inductively coupled plasma (ICP) is the main light source used for atomic emission spectroscopy and mass spectrometry, with ICP as the center, multiple detection units (each element with a detection unit) are installed around it, forming a multi-element analysis system. Using it as an excitation light source has the advantages of low detection limit, wide linear range, low ionization and chemical interference, and high accuracy and precision.

ICP-OES: Quantitative analysis of elements by accepting emission spectra of different wavelengths;

ICP-MS: The ions generated by the ion source are separated by the mass-to-charge ratio (m/z) through a four-stage rod, and the number of ions is calculated into the detector to detect the element concentration.

Sample requirements

1. For powder and bulk sample: Provide >100 mg. For liquid sample: Provide 5-10 mL, please contact us if it contains organic solvents.

2. Impurity elements such as Na, K, Ca, Mg, and Al are very common in the environment. If the content in the sample is low, it will lead to large errors. The influence of environmental interference can be reduced by increasing the sample amount. Please keep the shipping process clean and free from contamination and increase errors.

3 If the sample contains Li’ element and the content exceeds 2%, please note or contact the project manager to explain the situation. It needs to be buffered with water and then acid-dissolved, otherwise it may cause an explosion.

Examples

Calculation method:

V₀: After the sample is digested, the volume at a constant volume, in milliliters (mL), 。corresponds to the data in (B) in the following table

f: Dilution factor, corresponding to the data in (E) in the following table

C₀: The concentration of the test solution element, in milligrams per liter (mg/L), the data is obtained by the instrument test, corresponding to the data in (D) of the following table

Note: The final result of the samples is calculated by formula above.

 

Test result:

FAQs

1. How to choose ICP-OES or ICP-MS when testing samples?
ICP-OES is more suitable for testing the sample solution to be ppm level. If the measured sample solution reaches mg/kg level, OES is selected to test if want to ICP-MS test solution need to be diluted in advance. For the sample which concentration is unknown, it is suggested to measure OES first.
2. The test results are not as expected, large or small, where does the error come from?
There is a certain degree of uncertainty in each test, so there will definitely be some difference in the data. Some error may cause by unevenness in the sample, whether there is easy moisture absorption, easy water loss, easy oxidation and other factors that lead to changes in the physical and chemical properties of the sample.
3. Why can't the sample to be tested after digestion contain organic matter, solid impurities, F ions, etc.?
Containing organic matter and solid impurities will cause clogging of the instrument injection tube, causing instrument failure, damaging the instrument; and will cause test errors; containing F ions, alkaline substances, etc. will corrode the internal components of the instrument, causing instrument failure, damage to the instrument.

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