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Dänemark-Aarhus: Laborgeräte, optische Geräte und Präzisionsgeräte (außer Gläser)
Abschnitt I: Öffentlicher Auftraggeber/Auftraggeber
Abschnitt II: Gegenstand
Isotope Ratio Mass Spectrometry and High Resolution MC-ICP-MS
Aarhus University wants to buy a High Resolution Multicollector ICP-MS laser system for research purposes. The aim of the research is to analyze mercury isotopes in biotic and abiotic matrices to resolve the sources of the emitted and long-range transported mercury across the globe including the precipitation and bio-magnification and accumulation of the different mercury isotopes over time.
Aarhus University have contacted the only 2 companies that delivers MC-ICP-MS equipment for quotes and specifications, but due to the expected usage of different pre-inlet systems, i.e. autosampler, cold-vapor/hydride-generation, GC and HPLC systems with frequent changing between the different sample sources, we need a system with the inlet at low potential (ground/earthed), which is only available from Thermo Fischer.
The Department of Bioscience at Aarhus University in Roskilde (BIOS-Roskilde) has been at the forefront of research on Hg in the Arctic for decades. The research has been focused mainly on biological accumulation and toxicological effects of Hg. The research has been conducted as part of numerous research projects over the years and as part of the Arctic Monitoring and Assessment Programme (AMAP) under the Arctic Council lead by Prof. Dr. Rune Dietz and the Danish AMAP CORE programme lead by Senior Researcher Frank Rigét, both from BIOS-Roskilde. The research has been linked to chemical analyses at BIOS-Roskilde’s accredited trace metal analysis laboratory, which has a selection of state-of-the-art instruments (ICP-MS, DMA-80 and AFS) for measuring total Hg concentrations in various environmental matrices. This has provided a valuable understanding of the biological accumulation and effects of Hg in a number of Arctic species as well as the implications for human consumption and subsequent exposure. Results have been published in high-ranked scientific journals and synthesized and documented in comprehensive AMAP Hg Assessment Reports. Yet, many questions remain, especially regarding the sources, biogeochemical pathways and trophic transfer of Hg in Arctic ecosystems. This knowledge is important because an accurate source identification of Hg and knowledge about the transformation processes and trophic pathways will enable addressing mitigation actions towards the most significant sources to reduce the emissions and impact. Specifically, regulatory frameworks such as the Minamata Convention of the United Nations Environmental Programme, aimed at reducing Hg pollution globally, rely on a clear understanding of Hg sources and pathways, which is at present generally lacking for the Arctic environment. Recent instrumental advances have enabled identification of Hg sources and pathways through its isotopic composition (commonly referred to as the ‘isotopic signature’). Mercury has seven stable isotopes: 196Hg, 198Hg, 199Hg, 200Hg, 201Hg, 202Hg and 204Hg. Due to isotopic differences in Hg sources and subsequent fractionation processes, the Hg isotopic composition varies in natural samples. Fractionation of stable Hg isotopes can be divided into mass-dependent fractionation (MDF) and mass-independent fractionation (MIF). MDF occurs as a result of environmental processes such as (de-)methylation and evaporation. MIF occurs as a results of photochemical degradation of methyl-Hg and/or photochemical reduction of inorganic Hg. The instrument capable of measuring these isotopic differences in Hg with sufficient accuracy is a named a multi collector Inductively Coupled Plasma Mass Spectrometer (MC-ICP-MS).
The instrument must have the following specifications:
— GC and HPLC systems with frequent changing between the different sample sources,
— The inlet must have a low potential (i.e. ground/earthed).
Abschnitt IV: Verfahren
Aarhus University wants to buy a Isotope ratio mass spectrometry and high resolution MC-ICP-MS. After a thorough marked analysis we can conclude that only one manufacturer can deliver the combined laser system, that is able to meet our needs to the described system. Aarhus University have contacted the only 2 companies that produces and delivers MC-ICP-MS equipment for quotes and specifications, but due to the expected usage of different pre-inlet systems, i.e. autosampler, cold-vapor/hydride-generation, GC and HPLC systems with frequent changing between the different sample sources, we need a system with the inlet at low potential (ground/earthed), which is only available from thermo fischer.
Abschnitt V: Auftragsvergabe/Konzessionsvergabe
Abschnitt VI: Weitere Angaben
In case of complaints about tenders or decisions, e.g. award of contracts covered by Section II or III in the Danish Public Procurement Act must be submitted to the Complaints Board for Public Procurement (Klagenævnet for udbud) within 45 calendar days from the day after the contractor published a notice in the Official Journal on the conclusion of a contract. At the latest concurrently with submission of an appeal to the Complaints Board for Public Procurement, the complainant must inform the Contracting Authority of the alleged infringement, and whether the appeal is to be referred to the board.