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Available methods

Spectroscopy

CD spectrometer in the lab
Photo: Thomas Roese
Applied Photophysics Chirascan

CD spectroscopy

Structure determination of chiral (bio)molecules and investigation of their interactions with other molecules

 

CD spectrometer in the lab
Photo: Thomas Roese
Applied Photophysics Chirascan
Photo: Julian Heinrich
Bruker Magnettech ESR5000 with Hamamatsu LC8 irradiation unit (300-800 nm)

EPR spectroscopy

Electron spin resonance measurements of paramagnetic substances, including under irradiation

 

Photo: Julian Heinrich
Bruker Magnettech ESR5000 with Hamamatsu LC8 irradiation unit (300-800 nm)
Fluorimeter FluoroMax im Labor
Photo: Thomas Roese
Horiba Scientific FluoroMax 2

Fluorescence spectroscopy

Fluorimetric measurements

 

Fluorimeter FluoroMax im Labor
Photo: Thomas Roese
Horiba Scientific FluoroMax 2
Anlage zur Bestimmung der Fluoreszenquantenausbeute
Photo: Thomas Roese
Hamamatsu PL C9920-2

Fluorescence quantum yield

Determination of the quantum yield in the range 300-950 nm

 

Anlage zur Bestimmung der Fluoreszenquantenausbeute
Photo: Thomas Roese
Hamamatsu PL C9920-2
IR spectrometer in the lab
Photo: Nora Kulak
Thermo Nicolet Nexus 670 FT-IR equipped with ATR unit with diamond crystal

IR spectroscopy

Recording of IR spectra in transmission using KBr and CsI pellets (4000–500 cm⁻¹ and 1000–80 cm⁻¹, respectively) or by attenuated total reflection (ATR) using a diamond or ZnSe crystal (30 000–200 cm⁻¹ and 20 000–500 cm⁻¹, respectively)

 

IR spectrometer in the lab
Photo: Nora Kulak
Thermo Nicolet Nexus 670 FT-IR equipped with ATR unit with diamond crystal
Three UV/VIS spectrometers
Photo: Thomas Roese
Agilent Varian Cary 100 Bio UV/VIS spectrophotometer (top), Perkin Elmer Lambda 750 and 950 (bottom left and right, respectively)

UV/VIS spectroscopy

Measurement of absorption in the 190–900 nm range (liquid and solid samples), temperature-dependent measurements with 6 cell changer

 

 

Three UV/VIS spectrometers
Photo: Thomas Roese
Agilent Varian Cary 100 Bio UV/VIS spectrophotometer (top), Perkin Elmer Lambda 750 and 950 (bottom left and right, respectively)

Electrochemistry

Photo: Julian Heinrich, Thomas Roese
Metrohm Autolab potentiostat/galvanostat with 4 mL cell (platinum counter electrode, glassy carbon working electrode, optionally Ag/AgCl reference electrode (aqueous) or Ag/AgNO₃ reference electrode (organic, inert argon atmosphere possible), inset: Metrohm DropSens μStat 400 bipotentiostat/galvanostat with chip electrodes (aqueous only)

Cyclic voltammetry

Determination of redox potentials in organic solvents or aqueous solution

 

Photo: Julian Heinrich, Thomas Roese
Metrohm Autolab potentiostat/galvanostat with 4 mL cell (platinum counter electrode, glassy carbon working electrode, optionally Ag/AgCl reference electrode (aqueous) or Ag/AgNO₃ reference electrode (organic, inert argon atmosphere possible), inset: Metrohm DropSens μStat 400 bipotentiostat/galvanostat with chip electrodes (aqueous only)
Potentiometrie-Aufbau im Labor
Photo: Thomas Roese
Metrohm 888 Titrando

Potentiometry

Potentiometric pH titrations

 

Potentiometrie-Aufbau im Labor
Photo: Thomas Roese
Metrohm 888 Titrando
Setup for spectroelectrochemical measurements
Photo: Thomas Roese
Photometer setup (UV/VIS deuterium/halogen source and NIR coupled with Avantes SensLine detector) and Metrohm potentiostat Autolab PGSTAT101 and/or Autolab PGSTAT302N

Spectroelectrochemistry

Simultaneous determination of reduction/oxidation potentials and absorption in the UV/VIS/NIR range

Setup for spectroelectrochemical measurements
Photo: Thomas Roese
Photometer setup (UV/VIS deuterium/halogen source and NIR coupled with Avantes SensLine detector) and Metrohm potentiostat Autolab PGSTAT101 and/or Autolab PGSTAT302N

Element analysis

AAS-Gerät im Labor
Photo: Susanne Lubahn
Perkin Elmer AAnalyst800

AAS

Atomic absorption via flame, graphite furnace and hydride generation technique for the analysis of metals and metalloids

 

AAS-Gerät im Labor
Photo: Susanne Lubahn
Perkin Elmer AAnalyst800
ICP-MS-Gerät im Labor
Photo: Susanne Lubahn
Thermo Fisher Element 2

ICP-MS

Determination of elements with a double-focusing high-resolution mass spectrometer (except halogens, noble gases, C, N, H, O)

 

ICP-MS-Gerät im Labor
Photo: Susanne Lubahn
Thermo Fisher Element 2
ICP-OES-Gerät im Labor
Photo: Susanne Lubahn
Perkin Elmer Optima 5300DV

ICP-OES

Determination of elements via atomic and ionic emission (except halogens, noble gases, C, N, H, O)

 

ICP-OES-Gerät im Labor
Photo: Susanne Lubahn
Perkin Elmer Optima 5300DV
Aufschlussmikrowelle im Labor
Photo: Susanne Lubahn
MLS Ethos 1

Microwave for digestion reactions

acidic and basic digestions of solid substances

 

Aufschlussmikrowelle im Labor
Photo: Susanne Lubahn
MLS Ethos 1
Säuredestillationsanlage im Labor
Photo: Susanne Lubahn
Savillex DST1000

Acid distillation

Purification of acids using subboiling distillation

Säuredestillationsanlage im Labor
Photo: Susanne Lubahn
Savillex DST1000

Others

Photo: Isabell Prediger
PerkinElmer Clarus 580/Clarus SQ 8 S

GC-MS

Separation and identification of (volatile) organic compounds by gas chromatography coupled with mass spectrometry

Photo: Isabell Prediger
PerkinElmer Clarus 580/Clarus SQ 8 S
Elektrophorese-Kammern für Agarose-Gele in einem Abzug
Photo: Thomas Roese
Roth Rotiphorese PROfessional I, not in the picture: Bio-Rad Mini-PROTEAN Tetra Cell

Gel electrophoresis

Separation and analysis of protein (fragments) (vertical, PAGE) and DNA (horizontal, agarose)

 

Elektrophorese-Kammern für Agarose-Gele in einem Abzug
Photo: Thomas Roese
Roth Rotiphorese PROfessional I, not in the picture: Bio-Rad Mini-PROTEAN Tetra Cell
Gelscanner
Photo: Thomas Roese
Bio-Rad Gel Doc EZ Imager

Gel scanner

Visualization und quantification of gel electrophoresis experiments with different trays depending on gel staining method

  • UV Sample Tray (for irradiation with UV light)
  • Stain-free Sample Tray (for stain-free gels)
  • White Sample Tray (Coomassie Blue, Copper, Silver, Zinc staining)
Gelscanner
Photo: Thomas Roese
Bio-Rad Gel Doc EZ Imager
Photo: Isabell Prediger
VWR Hitachi Chromaster 5000

HPLC

Purification (semi-preparative, max. 50 mg) and determination of purity (analytical) with autosampler of organic compounds, especially peptides

Photo: Isabell Prediger
VWR Hitachi Chromaster 5000
Incubator, mini centrifuge, vortexer
Photo: Thomas Roese
Eppendorf ThermoMixer C, mini centrifuge, vortexer

Incubation and mixing

Incubation of solution in Eppendorf tubes (0.5 and 1.5 mL) in a temperature range 1–100 °C at max. 3000 rpm, centrifugation and vortexing

 

Incubator, mini centrifuge, vortexer
Photo: Thomas Roese
Eppendorf ThermoMixer C, mini centrifuge, vortexer
Lyophilisator mit Pumpe
Photo: Julian Heinrich
Büchi Lyovapor L-200

Lyophilizer

Lyophilization (freeze drying) of aqueous samples

 

Lyophilisator mit Pumpe
Photo: Julian Heinrich
Büchi Lyovapor L-200
Hood with vacuum/inert gas line, pump, magnetic stirrer and shaker with syringes and reagents for solid phase peptide synthesis
Photo: Thomas Roese
Setup for synthesis under inert gas (top left), materials and reagents for manual solid-phase peptide synthesis (bottom left), nevolab xelsius parallel synthesis reactor with 525 nm LED irradiation unit (right)

Synthesis

  • Organic synthesis and coordination chemistry, partially under inert gas atmosphere
  • Reactions in parallel synthesis reactor on a small scale (irradiation possible)
  • Solid phase peptide synthesis and bioconjugate chemistry
Hood with vacuum/inert gas line, pump, magnetic stirrer and shaker with syringes and reagents for solid phase peptide synthesis
Photo: Thomas Roese
Setup for synthesis under inert gas (top left), materials and reagents for manual solid-phase peptide synthesis (bottom left), nevolab xelsius parallel synthesis reactor with 525 nm LED irradiation unit (right)
Photo: Julian Heinrich
Eppendorf 5702 R

Centrifuge

Centrifugation of  Falcon tubes (15 and 50 mL) and Eppendorf tubes (1,5 and 2 mL) in a temperature range of -9 to 40 °C at max. 4400 rpm

 

Photo: Julian Heinrich
Eppendorf 5702 R