UA Biophysics: Spectrofluorometer Instructions

To get authorization to use it, please send an email to Lab manager.

Before beginning any work on the equipment, make sure it is in good condition. If something does not seem right, should be reported to the lab manager.

TURN ON THE EQUIPMENT:

1. Computer and instrument must be kept on.
2. Set the current knob of the lamp power supply completely counter-clock-wise turn the knob to the minimum current level
3. Turn on the lamp power supply and wait 10 min to stabilize (while turn on the other equipments). Then set the current to 15 -18 A.
4. Remove unnecessary optical filters, polarizers, or another element in the optical pathway.
5. With Laurdan or DPH, use 1 mm slits, and remove all the grating; while con Calcein, use 0.5 mm slits and install almost 3 grating. This setting may change during measurement.
6. Turn on the circulating chiller using the black power switch, bubbles must move in the hoses.
7. Turn on the temperature controller using the power switch on the back panel. Then push the run/stop button. . If the temperature doesn’t change when you are manipulating the Vinci software, press the run button again.
8. Start Vinci software using the shortcut icon on the desktop. The open window is for analysis, for launch the window to measurement software: select <Experiment> and <Experiment and Instrument Control>. Then, a characteristic sound from all the automatized parts is heard while they are move to reference positions and the pass the software test.
9. Check the monochromator dial wavelengths, it should be at 200 nm. Otherwise, ask for calibration procedure to the lab manager.
10. Select <Settings> and <Software> for save experiment file automatically in the output directory.
11. Charge an old experiment, a custom, or a new one. Remember, 1 ml is the minimum volume in cuvette.
12. Check the max intensity in your sample, this have to be between 300.000 and 700.000 counts.

SHUT DOWN:

1. Lower lamp power supply intensity.
2. Exit Vinci experiment and instrument control.
3. Turn off the temperature controller, and circulating chiller
4. Wait 5 min, and turn off the lamp power supply.

To a schematic drawing of PC1, visit [1]

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