[Determination of se in blood and tissue of animal samples by normal ICP-MS and ICP-MS with octupole reaction system].

The Se in the blood and tissue of animal samples was determined by ICP-MS instrument. The method was not only proved simple and rapid, but also showed satisfying precision and low detection limit. The optimum conditions of ICP-MS for the method were investigated.

[Determination of lead, cadmium, mercury, chromium and arsenic in acrylonitrile-butadiene-styrene copolymer using microwave digestion-ICP-MS].

A method was studied for the analysis of Cr, As, Cd, Hg and Pb in acrylonitrile-butadiene-styrene copolymer by using ICP-MS. The instrument parameters were optimized and the introduction system was developed systematically. The sample is decomposed by microwave digestion.

Distribution of platinum group elements in road dust in the Beijing metropolitan area, China.

Dust samples collected from the Beijing metropolitan area (China) were evaluated to determine the distribution and the concentration of platinum group elements (PGEs). The dust particles that were smaller than 100 mesh size fraction (150 microm) were analyzed after aqua regia digestion. Concentrations of Pt, Rh, and Pd were found to be between 3.

[Elimination of spectral interference in the determination of trace palladium in plants by inductively coupled plasma-mass spectrometry].

Inductively coupled plasma-mass spectrometry (ICP-MS) was employed to determine palladium in plants. The spectroscopic interferences with Pd in the ICP-MS determination were studied in detail. Spectral interferences with Pd were corrected using mathematical correction equation based on abundance ratio.

[Application of high performance liquid chromatography and hyphenated techniques in analysis of arsenic species].

Arsenic is a very important nonmetal element in the environment and is vitally related to human lives. It is well known that the biological availability and toxicological effects of arsenic compounds depend upon their chemical forms, so it is necessary to detect the species of arsenic in some environmental samples, food, medicine, and body fluids. High performance liquid chromatography (HPLC) is widely used in the research on arsenic species because of its high separation capability.

[Investigating the distribution of 11 kinds of trace elements in root-like and rootstalk-like dried medicinal herbs by using microwave digestion-ICP-MS].

A method was studied for the analysis of 11 kinds of trace elements(Cr, Mn, Ni, Co, Cu, Zn, As, Se, Mo, Cd and Pb) in root-like and rootstalk-like dried medicinal herbs by microwave digestion-ICP-MS. A digestion method was developed for trace elements analysis for two types of herbs. The Microwave digestion condition was optimized in terms of digestion system, proportion of acids, and digestion procedure, which affords reference to the preparation of the same kinds of dried medicinal herbs.

[Study on the method for the determination of soil available B by ICP-MS].

A method was established for the determination of soil available B by inductively coupled plasma mass spectrometry (ICP-MS). Compared to the traditional method for B analysis, the recommended method does not need filtration, so it escapes the contamination. The method not only proved simple and rapid, but also showed satisfying precision and accuracy.

[Determination of nine trace elements in Dioscorea opposita thumb by flame atomic absorption spectrophotometry].

The contents of the potassium, calcium, sodium, magnesium, copper, zinc, iron, manganese, strontium and nickel in Dioscorea opposita thumb were determined. The relative standard deviation(RSD) of the first eight contents is 0.43%, 1.

[Simultaneous determination of trace platinum, palladium and rhodium in environmental dust samples by ICP-MS after open-digestion].

A sensitive method for simultaneous determination of Pt, Pd and Rh in dust samples by ICP-MS after open-digestion was developed. The digestion method for the samples and conditions for measurement for ICP-MS were studied in detail. Aquaregia was proved to be a better solvent for the digestion of dust samples.

[Determination of As and Se in animal and plant samples by the normal ICP-MS with and without octupole reaction system and the ICP-MS with ORS].

Scme certified reference materials (CRMs) were digested and the elemental concentrations were determined by ICP-MS instrument, and the results include not only the trace key elements such as As, Pb, Hg and Cd but also the major components such as Ca, Fe, K, Na etc. The digestion method, the recoveries, and the detection limits are discussed to piove the reliability of ICP-MS and EPA200.8 method for the determination of the elements in fcxxl and plant samples.