Properties of a 2D peak

¹D retention time

A 2D peak may consist of multiple assigned peaks in the cut signals of the corresponding cut series.

A peak in a cut signal has a ¹D retention time:

where

t1C,R

¹D retention time of single peak in a cut signal

tA C

Cut peak start time

tB C

Cut peak end time

The ¹D retention time of the resulting 2D peak is then calculated as a weighted average by area of the cut ¹D retention times:

where

t1 2D,R

¹D retention time of 2D peak

A

Area

i

Cut number

t1 Ci,R

¹D retention time of single peak in a cut signal

²D retention time

Same as for the ¹D retention time, the ²D retention time of a 2D peak is calculated as the weighted average by area of the cut ²D retention times:

where

t2 2D,R

²D retention time of 2D peak

A

Area

i

Cut number

t2 Pi,R

²D retention time of the ith peak.

Area

The area of a 2D peak is calculated as the sum of the areas of all associated cut peaks.

Height

The height of a 2D peak is the height of the associated cut peak with the largest height.

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