Pulse Chemisorption Report

Selections

Description

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.

Selected Experiments
[group box]

Displays all related experiments in the current file. Only experiments with collected data are shown.

For fields and buttons not listed in this table, see Common Fields and Buttons.

Quantity Adsorbed Formulas

Situation 1	Pulse adsorption experiment, no calibration applied in peak editor, report option is Calculated.
Situation 2	Pulse adsorption 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 1.
Situation 3	Pulse adsorption experiment, calibration is applied in peak editor, report option is Calculated.
Situation 4	Pulse adsorption experiment, calibration is applied in peak editor, report option is Calibrated.
Situation 5	Pulse reaction experiment, no calibration applied in peak editor, report option is 'Calculated.
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.
Situation 8	Pulse reaction experiment, calibration is applied in peak editor, report option is Calibrated.

where

A_end	=	Area of the last peak, shown as Peak Area in peak editor
Ax	=	Area of peak #X, shown as Peak Area in peak editor
Avg_firstN	=	Average of first N peak areas
Avg_lasttN	=	Average of last N peak areas
L	=	Loop quantity calculated from the injection volume, ambient temperature, ambient pressure, and active gas concentration.
Mass_sample	=	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.
Qads_x	=	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 Mass_sample and sum across peaks.
Q_end	=	Quantity of the last peak, shown as Peak Quantity in peak editor.
Q_x	=	Quantity of peak #X, shown as Peak Quantity in peak editor