Analytical reference materials. Part VI. Development and certification of a sediment reference material for selected polynuclear aromatic hydrocarbons

AbstractThe methyl, multi-methyl, and ethyl derivatives of the polynuclear aromatic hydrocarbons (PAH) of cigarette smoke condensate (CSC) were isolated from the neutrals by silicic acid chromatography, solvent partitioning and gel chromatography. The procedure yielded a relatively pure PAH isolate amenable to further identifications. The multi-alkylated PAH were concentrated in the early gel fractions with parent and higher ring PAH found in subsequent gel fractions. It was shown that CSC is very rich in alkylated PAH, and their successful identification required extensive use of gas and liquid chromatography and ultra-violet and GC - mass spectrometric techniques. High-pressure liquid chromatography (HPLC) separated individual isomers of the alkylated PAH in complex GC peaks. PAH from indene to pentamethylchrysene were found. This report concludes our identification studies on the PAH of CSC and complements our two previous reports in this journal. Collectively, our studies have identified approximately 1000 PAH of cigarette smoke condensate and have led to the development of methods for the routine quantitation of PAH in smalI quantities of cigarette smoke condensate.

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ICP-MS AND ICP-AES ANALYSIS OF PLANT REFERENCE MATERIALS

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2019-85-6-11-24 ◽

2019 ◽

Vol 85 (6) ◽

pp. 11-24

Author(s):

I. V. Nikolaeva ◽

A. A. Kravchenko ◽

S. V. Palessky ◽

S. V. Nechepurenko ◽

D. V. Semenova

Keyword(s):

Reference Material ◽

Mass Spectrometer ◽

Reference Materials ◽

Atomic Emission ◽

Icp Ms ◽

Lithium Metaborate ◽

Relative Standard ◽

Microwave System ◽

Total Analysis ◽

Siberian Pine

Two methods — ICP-MS and ICP-AES are used for certification of the new reference material — needles of Siberian pine (NSP-1). Techniques of the analysis include decomposition of plant samples in two different ways: acid digestion in a microwave system MARS-5 and lithium metaborate fusion followed by ICP-MS and ICP-AES analysis of the solutions. Simultaneous determinations of all the elements were carried out in low, medium and high resolution using SF-mass-spectrometer ELEMENT and atomic-emission spectrometer IRIS Advantage with external calibrations and internal standards (In — ICP-MS, Sc —ICP-AES). Middle and high resolutions of ICP mass spectrometer were used for interference corrections. Data obtained by ICP-MS and ICP-AES with different decomposition techniques are in good agreement. The ICP-MS and ICP-AES techniques have been validated by the analysis of three plant reference materials: LB-1 (leaf of a birch), Tr-1 (grass mixture) and EK-1 (Canadian pondweed). These techniques were used for the determination of 38 elements in the new reference material NSP-1. Relative standard deviations for most of the determined elements were below 10%. Combination of ICP-MS and ICP-AES techniques for certification of the new reference material makes it possible to expand the set of elements to be determined and to reduce the total analysis time.

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Spectrophotometry Measurement of Polynuclear Aromatic Hydrocarbons in Hamilton Harbour Sediments

Water Quality Research Journal ◽

10.2166/wqrj.1991.001 ◽

1991 ◽

Vol 26 (1) ◽

pp. 1-16 ◽

Cited By ~ 4

Author(s):

T.P. Murphy ◽

H. Brouwer ◽

M.E. Fox ◽

E. Nagy

Keyword(s):

Aromatic Hydrocarbons ◽

Total Concentration ◽

Coal Tar ◽

Sediment Cores ◽

Polynuclear Aromatic Hydrocarbons ◽

Mass Spectrometry Analysis ◽

Gas Chromatography Mass Spectrometry ◽

Near Surface ◽

Spectrometry Analysis ◽

Hamilton Harbour

Abstract Eighty-one sediment cores were collected to determine the extent of coal tar contamination in a toxic area of Hamilton Harbour. Over 800 samples were analyzed by a UV spectrophotometric technique that was standardized with gas chromatography/mass spectrometry analysis. The coal tar distribution was variable. The highest concentrations were near the Stelco outfalls and the Hamilton-Wentworth combined sewer outfalls. The total concentration of the 16 polynuclear aromatic hydrocarbons (PAHs) in 48,300 m3 of near-surface sediments exceeded 200 µg/g.

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