Change Spectra Acquisition Mode

None

No spectra are taken.

Apex

A spectrum is taken at the apex of the peak.

(Not available for the G7115A, G7117A/B or the HDR-DAD Cluster.)

Apex + Baselines

Spectra are taken at the apex, and baselines of the peak.

(Not available for the G7115A, G7117A/B/C or the HDR-DAD Cluster.)

NOTE: This mode is available only if the application supports peak-detection functionality.

Apex + Slopes

Spectra are taken at the apex, upslope, and downslope of the peak.

(Not available for the G7115A, G7117A/B/C or HDR-DAD Cluster.)

NOTE: This mode is available only if the application supports peak-detection functionality.

Apex + Slopes + Baselines

Spectra are taken at the apex, baselines, upslope, and downslope of the peak.

(Not available for the G7115A, G7117A/B/C or the HDR-DAD Cluster.)

NOTE: This mode is available only if the application supports peak-detection functionality.

All in Peak

All spectra within the peak are taken.

(Not available for the G7115A, G7117A/B/C or the HDR-DAD Cluster.)

NOTE: This mode is available only if the application supports peak-detection functionality.

NOTE: The three spectra acquisition types mentioned above are also referred to as peak-controlled spectra acquisition. The peak detection is done by the detector firmware based on the threshold and peakwidth parameters you set for the DAD. If you want to use peak-controlled spectra storage, make sure that you set these parameters to recognize all the peaks of interest. The integration algorithm also includes peak detection based on the threshold and peakwidth parameters set in the integration events.

Every 2nd spectrum

Spectra are taken continuously as for All, but only every second spectrum is stored; other spectra are discarded. This reduces the amount of data storage necessary.

(Not available for the G7115A, G7117A/B/C or the HDR-DAD Cluster.)

NOTE: This mode is available only if the application supports peak-detection functionality.

All

Spectra are taken continuously depending on the setting of the Peakwidth. Eight spectra are acquired per Peakwidth. The acquisition time for one spectrum is slightly less than the Peakwidth divided by 8, that is, greater than or equal to 0.01s and less than or equal to 2.55s.