determination of the sum of short chain chlorinated n

  • Determination of the sum of short chain chlorinated n ...

    Mar 01, 2015· A method for the quantification of the sum of short chain chlorinated paraffins (SCCPs) by GC–ECNI-MS was developed. This method is suited to the special demands of environmental sediment analysis using an approach of sum determination by multiple regression quantification and is independent of the chlorine content as well as robust against changes in C-number distribution of the …

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  • (PDF) An analytical method for chlorinated paraffins and ...

    The limit of detection for the sum of CPs ... Chromatography Time-of-Flight Mass Spectrometry for the Determination of Short-Chain Chlorinated Paraffins in Water Samples ... Short-chain ...

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  • Historical Profiles of Chlorinated Paraffins and ...

    CP concentrations (sum of short chain (SCCP), medium chain (MCCP),andlongchainCPs(LCCP))showedasteepincrease in the 1980s and a more-or-less stable level of 50 ng g-1 dry weight(dw)sincethen.Theconcentration-timeprofileisingood agreement with the available information on global production data. The quantification of higher chlorinated SCCPs using

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  • Microwave-assisted extraction versus Soxhlet extraction ...

    long-chain (C18–30, LCCPs) chlorinated alkanes (CPs). Due to their physical and chemical properties, CPs are used as additives in plastics, paints and cutting oils and as flame re-tardants [6–7]. Of the different CP formulations, short-chain (C10–C13) CPs are …

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  • Testing Methods STANDARD 100 by OEKO TEX®

    Determination of the content of organic tin compounds \(OZV\) 8. Bestimmung des Gehaltes von kurzkettigen Chlorparaffinen \(SCCP\) 8. Determination of the content of short chain chlorinated paraf-fines \(SCCP\) 9. Bestimmung des Gehaltes von per- und polyfluorierten Verbin-dungen \(PFC s\) 9. Determination of the content of per- and ...

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  • A survey of the spatial, altitudinal, and temporal ...

    Chlorinated paraffins (CPs) have been produced since 1930 and are still used in a wide variety of consumer products and industrial processes. In the last decades, CPs represented one of the largest group of chlorinated hydrocarbons produced in North America and Europe. In spite of the knowledge of their long-range transport, bioaccumulation, potential of carcinogen for rats and mice, and ...

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  • A survey of the spatial, altitudinal, and temporal ...

    Chlorinated paraffins (CPs) have been produced since 1930 and are still used in a wide variety of consumer products and industrial processes. In the last decades, CPs represented one of the largest group of chlorinated hydrocarbons produced in North America and Europe. In spite of the knowledge of their long-range transport, bioaccumulation, potential of carcinogen for rats and mice, and ...

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  • ISO - ISO 12010:2012 - Water quality — Determination of ...

    ISO 12010:2012 specifies a method for the quantitative determination of the sum of short-chain polychlorinated n‑alkanes, also known as short-chain polychlorinated paraffins (SCCPs), in the carbon bond range n-C 10 to n-C 13 inclusive, in mixtures with chlorine mass fractions ("contents") between 49 % and 67 %, including approximately 6 300 of approximately 8 000 congeners.

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  • Risk assessment of chlorinated paraffins in feed and food ...

    Arithmetic means of the relative homologue group concentration for short‐chain chlorinated paraffins and medium‐chain chlorinated paraffins in Norwegian, Danish, Scottish and Chilean farmed salmon and in different Eastern Pacific wild salmon (from Krätschmer et al., 2019 2 2 Reprinted from Chemosphere, 227, Krätschmer K, Schächtele A ...

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  • Historical Profiles of Chlorinated Paraffins and ...

    CP concentrations (sum of short chain (SCCP), medium chain (MCCP),andlongchainCPs(LCCP))showedasteepincrease in the 1980s and a more-or-less stable level of 50 ng g-1 dry weight(dw)sincethen.Theconcentration-timeprofileisingood agreement with the available information on global production data. The quantification of higher chlorinated SCCPs using

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  • Headspace Solid-Phase Microextraction Coupled to ...

    Jan 01, 2018· Short-chain chlorinated paraffins (SCCPs) are complex mixtures of polychlorinated n-alkanes with carbon chain lengths from 10 to 13 carbon atoms and with a chlorination degree in the range 30-70%. ... "Determination of the sum of short chain polychlorinated n-alkanes with a chlorine content of between 49 and 67% in water by GC-ECNI-MS and ...

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  • Standard - Water quality - Determination of short-chain ...

    This International Standard specifies a method for the quantitative determination of the sum of short-chain polychlorinated n-alkanes also known as short-chain polychlorinated paraffins (SCCPs) in the carbon bond range, n-C10 to n-C13, inclusive in mixtures with chlorine mass fractions (“contents“) between 50 % and 67 %, including approximately 6 000 of approximately 8 000 congeners.

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  • Validation interlaboratory trial for ISO 12010: Water ...

    Oct 26, 2011· A validation interlaboratory trial was carried out to prepare ISO 12010: Water quality—Determination of short-chain polychlorinated alkanes (SCCP) in water—Method using gas chromatography/mass spectrometry (GC-MS) and electron capture negative ionisation (ECNI). The task was to determine the sum of short-chain polychlorinated n-alkanes with carbon chain lengths of C10–C13 and a chlorine ...

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  • Occurrence, homologue patterns and source ... - Europe PMC

    Apr 09, 2017· Spatial and temporal variability in air concentrations of short-chain (C10-C13) and medium-chain (C14-C17) chlorinated n-alkanes measured in the U.K. atmosphere. Barber JL, Sweetman AJ, Thomas GO, Braekevelt E, Stern GA, Jones KC. …

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  • HISTORICAL PROFILE OF CHLORINATED PARAFFINS AND ...

    Chlorinated paraffins (CPs) are produced since the 1930s and their global annual production is estimated to be about 300’000 t. 1. Due to varying carbon chain length they are subdivided into short chain CPs (SCCPs, C. 10-13), medium chain CPs (MCCPs, C. 14-17) and long chain CPs (LCCPs, C >17). 1. They are mainly utilised as additives in

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