Search Results - "Fruehauf, Peter"
-
1
Direct coupling of supercritical fluid chromatography with tandem mass spectrometry for the analysis of amino acids and related compounds: Comparing electrospray ionization and atmospheric pressure chemical ionization
Published in Analytica chimica acta (15-08-2017)“…For acceptance of supercritical fluid chromatography (SFC) as a routine analysis method, the hyphenation to mass spectrometry (MS), which is typically achieved…”
Get full text
Journal Article -
2
Strong cation- and zwitterion-exchange-type mixed-mode stationary phases for separation of pharmaceuticals and biogenic amines in different chromatographic modes
Published in Journal of Chromatography A (04-01-2021)“…•Facile synthesis of novel mixed-mode ion-exchange stationary phases•New multimodal columns are suitable for separation of biogenic amines, zwitterions and…”
Get full text
Journal Article -
3
Quantification of the neurotransmitters melatonin and N-acetyl-serotonin in human serum by supercritical fluid chromatography coupled with tandem mass spectrometry
Published in Analytica chimica acta (21-09-2016)“…The aim of this study was developing a supercritical fluid chromatography tandem mass spectrometry (SFC-MS/MS) method and an ultra-high performance liquid…”
Get full text
Journal Article -
4
Consequences of transition from liquid chromatography to supercritical fluid chromatography on the overall performance of a chiral zwitterionic ion-exchanger
Published in Journal of Chromatography A (29-09-2017)“…•Modifier amount in supercritical CO2 marks boundaries between chromatographic modes.•Enantioseparation of acids, bases and ampholytes on chiral zwitterionic…”
Get full text
Journal Article -
5
Design and synthesis of naphthalene‐based chiral strong cation exchangers and their application for chiral separation of basic drugs
Published in Journal of separation science (01-09-2021)“…In continuation of our efforts to synthesize a highly dedicated strong cation exchanger, we introduce four chiral stationary phases based on a laterally…”
Get full text
Journal Article -
6
Chip-Package-Board Reliability of System-in-Package Using Laminate Chip Embedding Technology Based on Cu Leadframe
Published in IEEE transactions on components, packaging, and manufacturing technology (2011) (01-01-2020)“…We investigate the reliability of a system-in-package (SiP) technology, which uses laminate chip embedding based on a copper leadframe. For this SiP…”
Get full text
Journal Article -
7
Chiral separation of new designer drugs (Cathinones) on chiral ion-exchange type stationary phases
Published in Journal of pharmaceutical and biomedical analysis (20-02-2016)“…[Display omitted] •Successful enantioseparation of new designer drugs (Cathinones) was achieved.•MS-compatible mobile phases and ion-exchange type CSPs were…”
Get full text
Journal Article -
8
Chemoselective and enantioselective analysis of proteinogenic amino acids utilizing N-derivatization and 1-D enantioselective anion-exchange chromatography in combination with tandem mass spectrometric detection
Published in Journal of Chromatography A (18-11-2011)“…► SFP derivatization supports the enantiorecognition and increases chromatographic selectivity. ► SFP labelling enables selective and sensitive MS detection. ►…”
Get full text
Journal Article -
9
Synthesis of 3-deoxy-2-uloses via the indium-mediated allylation reaction
Published in Monatshefte für Chemie (01-05-2019)“…We utilized the indium-mediated allylation reaction for the synthesis of carbohydrate structures containing the 3-deoxy-2-ulose motif, a barely investigated…”
Get full text
Journal Article -
10
Discovery of methylfarnesoate as the annelid brain hormone reveals an ancient role of sesquiterpenoids in reproduction
Published in eLife (29-11-2016)“…Animals require molecular signals to determine when to divert resources from somatic functions to reproduction. This decision is vital in animals that…”
Get full text
Journal Article -
11
Evaluation of silica from different vendors as the solid support of anion‐exchange chiral stationary phases by means of preferential sorption and liquid chromatography
Published in Journal of separation science (01-12-2019)“…Chromatographic performance of a chiral stationary phase is significantly influenced by the employed solid support. Properties of the most commonly used…”
Get full text
Journal Article -
12
Click chemistry immobilization strategies in the development of strong cation exchanger chiral stationary phases for HPLC
Published in Journal of separation science (01-09-2013)“…Enantioseparation of chiral amines with HPLC has developed into a widely used analytical and preparative tool. Chiral basic molecules, which act as cationic…”
Get full text
Journal Article -
13
Comparisons of Solder Joints Fatigue Life Predictions and Several Long-Term Testing Results
Published in 2019 18th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm) (01-05-2019)“…Solder fatigue phenomena on lead-free solder joints have been subject of numerous studies. In most cases, reference was made to test cycling conditions. To…”
Get full text
Conference Proceeding -
14
Solder Fatigue Analyses and Predictions for PCB Mounted Components after Thirteen Years of Thermal Field Cycling
Published in 2024 25th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE) (07-04-2024)“…A long-term temperature cycle test has been running for more than 13 years to answer the most challenging questions about dominating failure modes and…”
Get full text
Conference Proceeding -
15
Chip-package-board reliability of System-in-Package using laminate chip embedding technology based on Cu leadframe
Published in 2018 7th Electronic System-Integration Technology Conference (ESTC) (01-09-2018)“…We investigated a System-in-Package (SiP) technology using laminate chip embedding based on a copper leadframe. This SiP technology included different Si-based…”
Get full text
Conference Proceeding -
16
Process technology and integration of an LED driver using chip-embedding technology
Published in 2018 7th Electronic System-Integration Technology Conference (ESTC) (01-09-2018)“…System integration for LED lighting is facing the challenge of providing many additional smart functions in one housing of small form factor. A possible way to…”
Get full text
Conference Proceeding