Arometrix FRACTION FINDER Manual del usuario - Página 11

Navegue en línea o descargue pdf Manual del usuario para Equipos de laboratorio Arometrix FRACTION FINDER. Arometrix FRACTION FINDER 17 páginas.

Option A - Spectrum View: The other indicator is that a broad peak shows up in the Spectrum plot

between 440-450nm. An example plot is shown below; keep in mind peak location and intensity may vary.

See our "Chemical Cheat Sheet" to learn about where and how each molecule fluoresces on the unit.

Arometrix recommends that you use the Spectrum plot for an absolute indicator of the Heads to main

body transition.

Option B - Wavelength View: This view will show that there is a big peak in the value of the wavelength

plot. An example plot is shown below. The Wavelength View is recommended to identify when the

distillation is transferring from Heads to Main Body.

Step 5) Perform Flask Transfer & Let Distillation System Equilibrate

1) Once you've entered Main Body, proceed as you typically would with a flask transfer.

a. It is advised that the Heads be allowed to distill for ~10 minutes before performing a flask

to ensure that no solvents contaminate the Main Body.

b. There is no need to turn off or hit the clear button on the FRACTION FINDER, unless you

want to.

2) After flask transfer, let the system come to its equilibrated point (let pressure and temperature

become relatively constant) before using the FRACTION FINDER

a. Keep in mind that the signal will be very low and all ambient lighting effects will greatly

increase

b. Equilibration time will depend on system size. A 5L SPD can take 5-10 mins. A 10L SPD can

be 10-15 minute. Mantle quality and pump quality are also factors for equilibration time.

Arometrix, Inc.

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