LabAdviser/314/Preparation 314-307

Critical point dryer

Leica EM CPD300. The Critical Point Drier (CPD) is used for drying samples for the SEM. The machine uses the fact that at the critical point the solvent can be converted from liquid to gas without crossing the interfaces between liquid and gas (no surface tension) and hence no sample drying artefacts. CO2 is the solvent of choice as its triple point is suitable for biological samples (31°C and 74 bars). The CO2 is not miscible with water; therefore the sample should be dissolved in acetone or ethanol. The Leica EM CPD300 operating manual is here CPD030.pdf.

The Leica EM CPD300 is located at DTU Cen, building 314, in the Soft Mater (toxic) Lab. For further information on the machine usage contact ramona.mateiu@cen.dtu.dk.

DTU Cens Leica EM CPD300

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Optical Microscopes

- 1) Olympus BX51 colorview.

Operation Manual

Location Building 307, Prep Lab 109

2) Olympus SZ61 stereo Zoom Microscope.

Brochure

Location Building 307, Prep Lab 109

3) Leica MZ75 stereo microscope.

File:Operation Manual Leica_MZ75.pdf

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Location Building 314, Prep Room 01

Ion milling

1) Fischione Low Angle Ion Milling and Polishing System Model 1010.

File:Operation Manual Fischione_1010.pdf

Location Building 307, Prep Lab 109

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2) Fischione NanoMill model 1040.

Operation Manual

Location Building 314, Common Area

Pumping stations

1) Pumping Cube for single TEM specimen holder.

Location Building 307, Room 111

2) Gatan Turbo Pumping Station model 655. Capacity 4 specimen holders.

Brochure

Location Building 314, Common area

Polishing

1) Struers Labopol -25.

Brochure

Location Building 307, Prep Lab 109

2) TechPrep Allied.

Brochure

Location Building 307, Prep Lab 109

3) Struer Labopol -5.

Location Building 307, Prep Lab 109

4) Struer Labopol -4.

Location Building 307, Prep Lab 109

Saws

1) Struers Minitom.

Brochure

Location Building 307, Prep Lab 109

2) Well Precision Diamond Wire Saw.

Brochure

Location Building 307, Prep Lab 109

Plasma cleaner & Pumping Station

1) Fischione Plasma Cleaner model 1020.

Brochure

Location Building 307, Prep Room 01

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Coaters & Accessories

1) Cressington 208 Carbon Coater.

Brochure

Location Building 314, Prep Room 01

2) Cressington 208HR Sputter Coater.

Brochure

Location Building 314, Prep Room 01

Accessory for 208HR Sputter Coater:

Glow Discharge Head

Location Building 314, Prep Room 01

Sonicators

1) Ultrasonic Branson 2510.

Brochure

Location Building 307, Prep Prep Lab 109

2) VWR Ultrasonic Cleaner.

Brochure

Location Building 314, Common Area

Hot plates

1) Nuova hot plate.

Brochure

Location Building 307, Prep Lab 109

Critical point dryer

+ Leica EM CPD300.

Centrifuge

+ The Critical Point Drier (CPD) is used for drying samples for the SEM. The machine uses the fact that at the critical point the solvent can be converted from liquid to gas without crossing the interfaces between liquid and gas (no surface tension) and hence no sample drying artefacts. CO2 is the solvent of choice as its triple point is suitable for biological samples (31°C and 74 bars). The CO2 is not miscible with water; therefore the sample should be dissolved in acetone or ethanol.

pH meter

+ nt dryer ==