Induction-Coupled Argon Plasma ICAP

Actinide metal samples are characterized by chemical and structure analysis. Multielement analysis by spark source mass spectrometry (SSMS) or inductively coupled argon plasma (ICAP) emission spectroscopy have lowered the detection limit for metallic impurities by 10 within the last two decades. The analysis of O, N, H by vacuum fusion requires large sample, but does not distinguish between bulk and surface of the material. Advanced techniques for surface analysis are being adapted for investigation of radioactive samples (Fig. 11) ... 

Inductively coupled argon plasma (ICAP) for copper look for 1 to 2 ppm copper. Potential Solution ... 

ICAP = Inductively Coupled Argon Plasma Spectrophotometry... 

EPA Methods 6010 (ICP AES), 200.7 (ICP AES), and 6020 (ICP MS) use inductively coupled argon plasma as the source of excitation to produce emission spectra of metals and metalloids. (Hence another term for this technique, the ICAP, or inductively coupled argon plasma.) In ICP AES or ICP MS instruments, a liquid sample is nebulized (turned into aerosol) with a flow of inert carrier gas... 

IATA ICAP ICP ICP-AES ICP-MS ICV ID IDL IDW ISO International Air Transportation Association inductively coupled argon plasma inductively coupled plasma inductively coupled plasma-atomic emission spectrometry inductively coupled plasma-mass spectrometry initial calibration verification identification instrument detection limit investigation-derived waste International Standardization Organization... 

In the inductively coupled argon plasma emission spectrometer method, nickel, iron, and vanadium content of gas oil samples in the range from 0.1 to 100 mg/kg. Thus a 10-g sample of gas oil is charred with sulfuric acid and subsequently combusted to leave the ash residue. The resulting sulfates are then converted to their corresponding chloride salts to ensure complete solubility. A barium internal standard is added to the sample before analysis. In addition, the use of the ICAP method for the analysis of nickel, vanadium, and iron present counteracts the two basic issues arising from metals analysis. The most serious issue is the fact that these metals are partly or totally in the form of volatile, chemically stable porphyrin complexes and extreme conditions are needed to destroy the complexes without losing the metal through volatilization of the complex. The... 

Spectral methods (spark source mass spectrometry SSMS, secondary ion mass spectrometry SIMS, inductively coupled argon plasma for emission spectroscopy ICAP-ES) which avoid separation steps are increasingly applied for multi-element analysis. Hot extraction is used for 0, N, H determinations. Oxygen is also determined by activation analysis, nitrogen after adaptation of classical methods (micro-Kjeldahl). Combination and comparison of different, independent methods are desirable, but hampered by the often limited availability of samples of actinides. 

Hunt CD and Shuler TR (1990) Open-vessel, wet-ash, low-temperature digestion of biological materials for inductively-coupled argon plasma spectrometry (ICAP) analysis of boron and other elements. 

ICP Inductively coupled argon plasma (also referred to as ICAP). An instrument used for metals analysis. Because the temperature of the plasma is considerably higher (10,000 K) than the temperature of a flame AA spectrophotometer, it is especially useful for refractory metals. Some instruments are also capable of performing simultaneous multielement analysis. 

Inductively-Coupled Argon-Plasma Atomic Emission Spectroscopy (ICAP AES) 2.0 Any matrix NIOSH (1984A). Requires extensive sanple preparation and concentration of metal with chelating resin. Advantage is simultaneous analyses for as many as 10 metals from 1 sample. 

The buildup of soluble corrosion products can be used to monitor corrosion kinetics. This method has been used extensively in oil field corrosion inhibitor testing, particularly in sweet (CO2) systems with only small amounts of HjS present [29]. Iron analysis in the laboratory is most rapidly done on the bench with the Hach method (Phenantridine) [.30], although a host of other wet chemical methods are applicable. Instrumental methods include Atomic Absorption Spectroscopy (AAS) and Inductively Coupled Argon Plasma Spectroscopy (ICAP). While both these methods are well suited for high volume routine analysis, care must be taken that the samples are not contaminated by even traces of hydrocarbons. This includes soluble hydrocarbons such as methanol, chelating compounds such as EDTA, or scale inhibition products. Also used in the laboratory is Ion Chromatography (IC). This latter method is even more sensitive to sample composition and not recommended on a routine basis. 

ICAPS Inductively coupled argon plasma Spectrometry... 

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