ICP-MS is a highly sensitive elemental analysis instrument that can measure trace elements in solutions at or below ppb levels. Widely used in industries such as semiconductors, geology, environment, and biopharmaceuticals. ICP-MS stands for Inductively Coupled Plasma Mass Spectrometry, which is an analytical instrument that combines ICP technology with mass spectrometry. ICP utilizes a powerful high-frequency radio frequency signal applied to an inductor coil to form a high-temperature plasma inside the coil, and through the propulsion of gas, ensures the balance and continuous ionization of the plasma. In ICP-MS, ICP acts as an ion source, and the high-temperature plasma ionizes most elements in the sample to form a monovalent positive ion by releasing an electron. Mass spectrometry is a mass screening and analyzer that detects the intensity of an ion by selecting ions with different mass to nucleus ratios (m/z), and then analyzes and calculates the intensity of a certain element.
Instrument features:
(1) Multi element measurement: It can perform trace and trace analysis on more than 70 elements (from Li to U), with a detection range from less than 1 ppt to greater than 500 ppm, up to 9 orders of magnitude.
(2) Spectral simplicity: Each element (except In) has a spectral line of an isotope that is not affected by the spectral lines of other elements. So, there is less interference in multi-element determination, and in addition, the organic phase in the sample has less interference, allowing for the measurement of elements in the organic phase.
(3) High sensitivity: small sample size and low reagent usage.
(4) Fast speed: The usual analysis time is 1-5 minutes (including 1-2 days of cleaning)
(5) Flexible application: Automatically set and optimize measurement conditions.
(6) Rapid semi quantitative analysis: After quantitatively calibrating a small amount of elements, the instrument can determine the content of all elements based on the relative sensitivity of isotopes. This method is very useful in element screening.
(7) Isotope determination: It can perform ratio analysis of stable isotopes or radioactive isotopes.
Application areas:
(1) Environmental analysis: Analysis of pollution levels and pollution source items in soil, water quality, and air (including atmospheric sampling).
(2) Clinical medicine: Analysis of trace elements and toxic heavy metals in biological samples, such as blood and urine (sample size only requires 0.2-0.5 m1), and occupational disease surveys and children's urine lead surveys have been carried out.
(3) Pharmacy: Quality control of drugs.
(4) Safety evaluation of food and cosmetics: analysis of trace elements and toxic heavy metal elements.
(5) Nuclear medicine: Isotope analysis.
(6) Electronics industry: analysis of trace metal elements.
(7) Earth Science: Isotope ratio and elemental composition analysis, including rare earth element analysis.
(8) Other scientific research.