Aarhus Universitet 311 19 103 Trøjborgvej 82-84 Aarhus C 8000 Lasse Krongaard +45 60202600 udbud@au.dk www.au.dk Purchase of a LC-MS (Q Exactive). 2017-150-000073 The Department of Environmental Science (ENVS) is going to buy a new liquid chromatograph-mass spectrometer (LC-MS) to be used for determination of organic compounds in different environmental matrices (water, soil and biota). The instrument will be used for non-target analysis of organic compounds in environmental samples (screening for unknown compounds) and for target quantitative analysis. Environmental matrices are generally quite complex and organic compounds are often present at very low concentrations. Thus, an instrument used for these analyses must be capable of providing high sensitivity and, at the same time, high mass accuracy in order to identify the organic compounds with a high degree of confidence. High mass accuracy and high sensitivity are also necessary for quantitative target analysis of compounds that are not amenable with normal LC-MS because of e.g. interferences from similar groups of chemicals. 3455321.00 The Q Exactive (Thermo Scientific) is equipped with Orbitrap technology (patented by Thermo Scientific) that has a resolution capability of 140 000 (= high mass accuracy) and sensitivity in the low femtograms of analyte injected on column. The sensitivity of the Q Exactive is generally much higher than that of a QTOF. On the other hand, at very low concentrations, the mass resolution of the Q-TOF is not as good as the resolution at high concentrations, while the Q Exactive maintains the high mass resolution even at very low concentrations. Since many of our projects involve environmental samples (water, soil and biota) where organic compounds are often present at trace levels, high mass resolution is mandatory at low concentrations. Thus, only the technical characteristics of the Q Exactive can satisfy our need of high sensitivity and high resolution at the same time. The Q Exactive (Thermo Scientific) is equipped with Orbitrap technology (patented by Thermo Scientific) that has a resolution capability of 140 000 (= high mass accuracy) and sensitivity in the low femtograms of analyte injected on column. The sensitivity of the Q Exactive is generally much higher than that of a QTOF. On the other hand, at very low concentrations, the mass resolution of the Q-TOF is not as good as the resolution at high concentrations, while the Q Exactive maintains the high mass resolution even at very low concentrations. Since many of our projects involve environmental samples (water, soil and biota) where organic compounds are often present at trace levels, high mass resolution is mandatory at low concentrations. Thus, only the technical characteristics of the Q Exactive can satisfy our need of high sensitivity and high resolution at the same time. 2017-11-10 Thermo Electron A/S Stamholmen 193 Hørsholm 2970 3455321.00 Klagenævnet for udbud Toldboden 2 Viborg 8800 +45 72405708 klfu@naevneneshus.dk https://erhvervsstyrelsen.dk/klagenaevnet-for-udbud Konkurrence- og Forbrugerstyrelsen Carl Jacobsens Vej 35 Valby 2500 +45 4171500 kfst@kfst.dk 2017-11-13
See tender at TED: http://ted.europa.eu/udl?uri=TED:NOTICE:455175-2017:TEXT:EN:HTML