Pulse Chemisorption Report
Selections | Description | ||
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Area to Volume Conversion [group box] |
Calculated. Uses the standard calculation and the raw signal. Calibrated. Uses selected peaks for the conversion. A calibration step must be included in the experiment to use this method. |
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Selected Experiments [group box] |
Displays all related experiments in the current file. Only experiments with collected data are shown. |
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Situation 1 |
Pulse adsorption experiment, no calibration applied in peak editor, report option is Calculated.
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Situation 2 |
Pulse adsorption experiment, no calibration applied in peak editor, report option is Calibrated. |
Situation 3 |
Pulse adsorption experiment, calibration is applied in peak editor, report option is Calculated.
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Situation 4 |
Pulse adsorption experiment, calibration is applied in peak editor, report option is Calibrated.
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Situation 5 |
Pulse reaction experiment, no calibration applied in peak editor, report option is 'Calculated.
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Situation 6 |
Pulse reaction experiment, no calibration applied in peak editor, report option is Calibrated. Report displays an error message that calibration is not found and uses the formula from Situation 5. |
Situation 7 |
Pulse reaction experiment, calibration is applied in peak editor, report option is Calculated.
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Situation 8 |
Pulse reaction experiment, calibration is applied in peak editor, report option is Calibrated.
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where
Aend | = | Area of the last peak, shown as Peak Area in peak editor |
Ax |
= |
Area of peak #X, shown as Peak Area in peak editor |
AvgfirstN |
= |
Average of first N peak areas |
AvglasttN |
= |
Average of last N peak areas |
L |
= |
Loop quantity calculated from the injection volume, ambient temperature, ambient pressure, and active gas concentration.
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Masssample |
= |
Sample mass (grams) |
N |
= |
Use the last N peaks for saturation in the Pulse Chemisorption Report Options. For pulse reaction experiments (where gas is emitted by the reaction and peak areas decrease over time) this is the first N peaks. |
Qadsx | = | Quantity Adsorbed per gram for peak #X, shown in the Pulse Chemisorption Report's peak table. The report sets negative values to 0.0. To get total quantity adsorbed, multiply by Masssample and sum across peaks. |
Qend | = | Quantity of the last peak, shown as Peak Quantity in peak editor. |
Qx | = | Quantity of peak #X, shown as Peak Quantity in peak editor |