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2.1 iTC 200 Software Overview The iTC 200 software contains drop down menus, a status bar, and several tabs. The drop down menus control global system functions. The status bar displays the current status of the instrument. Each tab contains controls for different areas of instrument control. The status bar just below the menus reads “System Initiation – Please Wait”, which is the current status of the instrument when it is first booting. After a few seconds, the system will begin heating or cooling to the preset temperature. Once the instrument reaches the set temperature, it will thermostat at that temperature. To the right of the status bar, the “Time Left” box. During an experiment this box will show the time left until the end of the run. When the software is first started, by default, the “Experimental Design” tab is selected; this contains the simple run controls. “Experimental Mode” can be “Highest Quality” or “Minimum Protein”. “Highest Quality” uses 20 injections and a c-value of 100. These parameters should produce data that is clear and easier to fit. “Minimum Protein” uses fewer 19
injections, 10, and a c-value of 5. The result of these parameters will be the use of the least amount of sample necessary for a successful titration. The expected n, K d , and ΔH and the desired run temperature will allow the software to calculate the recommended concentrations for the cell and syringe, and set the run parameters based on mode chosen. If the user is unsure of the K d for their system, clicking the “Help” button causes the software to prompt for the type of compound in cell and syringe. It will then make a guess as to the K d . The user will still be required to choose values for ΔH and n. The “Advanced Experimental Design” tab contains more direct controls for the more advanced user. This tab should be familiar to users of the VP line of instruments. The “Instrument Controls” tab allows the user to name the output files, choose post-run analysis options, and start and stop the run. The “Real Time Plot” tab shows the data currently being generated. The “Setup” tab contains various options and preferences. 20
Page 1 and 2: Table Of Contents General..........
Page 3 and 4: How to Get Help from MicroCal The s
Page 5 and 6: Operational Safety The points below
Page 7 and 8: Humidity: 10 - 90% Atmospheric Pres
Page 9 and 10: 1.1 The Basics of ITC The iTC 200 (
Page 11: Titration Syringe Vacuum Flask Plas
Page 14 and 15: calculate the recommended concentra
Page 16 and 17: cell, and there is no more liquid.
Page 18 and 19: last line will say “Results Withi
Page 22 and 23: 2.2 Experimental Design When the so
Page 24 and 25: 2.3 Advanced Experimental Design Th
Page 26 and 27: The “Data File Comments” box al
Page 28 and 29: 2.4 Instrument Controls The “Inst
Page 30 and 31: Once the cells and jacket have reac
Page 32 and 33: 2.6 Setup The “Setup” tab allow
Page 34 and 35: 2.7 Menu Options The main drop down
Page 36 and 37: 2.8 Origin Real-Time Display This s
Page 38 and 39: 2.9 Origin Data Analysis Tutorial 1
Page 40 and 41: Cell Cleaning: 3.1 Cleaning The Cel
Page 42 and 43: Attach the end of the tubing to the
Page 44 and 45: Enough of the syringe bore should n
Page 46 and 47: 3.4 Changing Pipette Tips See the i
Page 48 and 49: After the final equilibration phase

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