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1

Moon’s subsurface heat fow mapping

Zhang Weijia, Zhao Ben, Lou Xinyu

Acta Geophysica

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2020

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Vol. 68, no. 2

577--596

EN

This paper investigates the lunar subsurface heat fow using data from the recent Chinese lunar orbiting spacecrafts Chang’e 1 and 2 to explore variations in the subsurface temperature of the Moon. These variations include heat fow information of the subsurface and the interior of the Moon. This research aims to develop a radiative transfer forward model for an airless body and then utilize microwave radiometer (MRM) data to study an observed anomaly of elevated 2-m-deep TB measurements in the Oceanus Procellarum region on the lunar subsurface. After initial comparison of the data from MRM with that from instruments and modelling of the lunar regolith parameters, a multi-layer radiative transfer forward model has been derived using the fuctuation dissipation theorem. The forward model was then used to invert the MRM-measured TB data to generate temperature profles of 2-m-deep subsurface. The provisional results show that, as expected, the temperature of 2-m subsurface is potentially correlated with the distribution of radioactive elements such as uranium and thorium in the lunar crust. The temperature map of 2-m subsurface was then converted to a lunar heat fow map, which was validated by the Apollo 15 and 17 measurements. Inspecting this heat fow map, abnormal high heat fow in the Oceanus Procellarum KREEP Terrain (PKT) region was noticed. The PKT is enriched with a high abundance of radioactive elements such as uranium and thorium. Hence, a heat fow model based on radioactive elements as well as internal cooling was built to investigate such a fnding.

2

QuEChERS – metoda wielopozostałościowa. Cz. 2: Zastosowania

Ruchomski L.

LAB Laboratoria, Aparatura, Badania

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2015

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R. 20, nr 6

20--26

3

QuEChERS – metoda wielopozostałościowa. Cz. 1

Ruchomski L.

LAB Laboratoria, Aparatura, Badania

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2015

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R. 20, nr 5

22--26

4

Liquid chromatography tandem mass spectrometry (LC-MS/MS) method for the determination of Vildagliptin in rat plasma

Sakthimanigandan K., Ganesh M., Kanthikiran V., Sivakumar T., Jang H.

Acta Chromatographica

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2015

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Vol. 27, no. 2

295--307

EN

A new sensitive and validated liquid chromatography electro spray ion-tandem mass spectrometry (HPLC-ESI-MS/MS) method for the quantification of Vildagliptin (VG) in rat plasma has been developed and validated using repaglinide (RG) as an internal standard (IS). The analytes were extracted by liquid-liquid extraction using ethyl acetate. Elution of the VG and IS was achieved on a reverse phase Betasil (C18 50 mm 4.6 mm ID, 5 μ) column with an isocratic mobile phase composed of acetonitrile: 2 mM ammonium acetate (90:10 v/v). The analytes monitored in the Multiple Reaction Monitoring (MRM) mode were m/z 304.2→154.0 and 453.3→230.3 for VG and RG, respectively. The calibration curve was linear in the range of 1.57–501.21 ng/mL for VG with lower limit of quantification 1.57 ng/mL. The intra run and inter run precision values are within 11.70% for VG at LOQ level.

5

Efedryny - działania lecznicze i dopingujące. Ultrasprawna chromatografia cieczowa z tandemową spektrometrią mas w badaniach moczu

Grabias A., Tszyrsznic W., Kwiatkowska D., Balcerzak M.

Analityka : nauka i praktyka

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2011

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nr 1

48-53

PL

Efedryny wykazują silne oddziaływanie biologiczne podobne do amfetaminy. Wpływają na aktywność układu współczulnego (sympatycznego) i ośrodkowego układu nerwowego.

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Analityka pozostałości antybiotyków w środowisku

Białk A., Stepnowski P.

Analityka : nauka i praktyka

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2010

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nr 1

28-33