Peakwidth (Modular LC DAD)

Peakwidth enables you to select the peak width (response time) for your analysis. The peak width is defined as the width of a peak, in minutes, at half the peak height. Set the peak width to the narrowest expected peak in your chromatogram. The peak width sets the optimum response time for your DAD. The peak detector ignores any peaks that are considerably narrower, or wider, than the peak width setting. The response time is the time between 10% and 90% of the output signal in response to an input step function. When the All spectrum storage option is selected, then spectra are acquired continuously depending on the setting of the peak width. The time specified by the peak width is used as a factor in the acquisition of spectra. The acquisition time for one spectrum is slightly less than the peak width divided by 8, that is, the acquisition time is between 0.01 seconds and 2.55 seconds.

Limits: When you set the peak width (in minutes), the corresponding response time is set automatically and the appropriate data rate for signal and spectra acquisition is selected as shown in the tables:

G7117A/CG7117A/C

Peakwidth at half-height (min)	Response Time (sec)	Data Rate (Hz) (<= 126 pts/scan)	Data Rate (Hz) (<= 251 pts/scan)	Data Rate (Hz) (<= 501 pts/scan)	Data Rate (Hz) (> 501 pts/scan)
<0.0016	0.016	120	120	40	20
>0.0016	0.031	120	120	40	20
>0.0031	0.063	80	80	40	20
>0.0063	0.13	40	40	40	20
>0.013	0.25	20	20	20	20
>0.025	0.5	10	10	10	10
>0.05	1	5	5	5	5
>0.1	2	2.5	2.5	2.5	2.5
>0.2	4	1.25	1.25	1.25	1.25
>0.4	8	0.62	0.62	0.62	0.62
>0.85	16	0.31	0.31	0.31	0.31

G7117BG7117B

Peakwidth at half-height (min)	Response Time (sec)	Data Rate (Hz) (<= 126 pts/scan)	Data Rate (Hz) (<= 251 pts/scan)	Data Rate (Hz) (<= 501 pts/scan)	Data Rate (Hz) (> 501 pts/scan)
<0.00078125	0.0078125	240	80	40	20
>0.00078125	0.015625	240	80	40	20
>0.0015625	0.03125	160	80	40	20
>0.003125	0.0625	80	80	40	20
>0.00625	0.125	40	40	40	20
>0.0125	0.25	20	20	20	20
>0.025	0.5	10	10	10	10
>0.05	1.0	5	5	5	5
>0.10	2.0	2.5	2.5	2.5	2.5
>0.20	4.0	1.25	1.25	1.25	1.25
>0.40	8.0	0.625	0.625	0.625	0.625
>0.85	16.0	0.3125	0.3125	0.3125	0.3125

G7115AG7115A

Peakwidth at half-height (min)	Response Time (sec)	Data Rate (Hz) (Signals)	Data Rate (Hz) (<= 251 pts/scan)	Data Rate (Hz) (<= 501 pts/scan)	Data Rate (Hz) (>= 501 <= 1024 pts/scan)
<0.0016	0.016	120	120	40	20
>0.0016	0.031	120	120	40	20
>0.0031	0.063	80	80	40	20
>0.0063	0.13	40	40	40	20
>0.013	0.25	20	20	20	20
>0.025	0.5	10	10	10	10
>0.05	1.0	5	5	5	5
>0.1	2.0	2.5	2.5	2.5	2.5
>0.2	4.0	1.25	1.25	1.25	1.25
>0.4	8.0	0.625	0.625	0.625	0.625
>0.85	16.0	0.3125	0.3125	0.3125	0.3125

G4212AG4212A

Peakwidth at half-height (min)	Response Time (sec)	Data Rate (Hz) (<= 126 pts/scan)	Data Rate (Hz) (<= 251 pts/scan)	Data Rate (Hz) (<= 501 pts/scan)	Data Rate (Hz) (> 501 pts/scan)
<0.0016	0.016	160	80	40	20
>0.0016	0.031	160	80	40	20
>0.0031	0.063	80	80	80	40
>0.0063	0.13	40	40	40	40
>0.013	0.25	20	20	20	20
>0.025	0.5	10	10	10	10
>0.05	1.0	5	5	5	5
>0.10	2.0	2.5	2.5	2.5	2.5
>0.20	4.0	1.25	1.25	1.25	1.25
>0.40	8.0	0.62	0.62	0.62	0.62
>0.85	16.0	0.31	0.31	0.31	0.31

G4212BG4212B

Peak Width (min)	Response Time (sec)	Data Rate (Hz)
<0.0031	0.031	80
>0.0031	0.063	80
>0.0063	0.13	40
>0.013	0.25	20
>0.025	0.5	10
>0.05	1.0	5
>0.10	2.0	2.5
>0.20	4.0	1.25
>0.40	8.0	0.62
>0.85	16.0	0.31

G1315A/B/DG1315A/B/D

Peak Width (min)	Response Time (sec)	Data Rate (Hz)
<0.013	0.13	20
>0.013	0.25	20
>0.025	0.5	10
>0.05	1.0	5
>0.10	2.0	2.5
>0.20	4.0	1.25
>0.40	8.0	0.62
>0.85	16.0	0.31

G1315CG1315C

Peak Width (min)	Response Time (sec)	Data Rate (Hz)
<0.0031	0.031	80
>0.0031	0.063	80
>0.0063	0.13	40
>0.013	0.25	20
>0.025	0.5	10
>0.05	1.0	5
>0.10	2.0	2.5
>0.20	4.0	1.25
>0.40	8.0	0.62
>0.85	16.0	0.31

HDR-DAD ClusterHDR-DAD Cluster

Peak Width (min)	Response Time (sec)	Data Rate (Hz)
>0.0031	0.063	80
>0.0063	0.13	40
>0.013	0.25	20
>0.025	0.5	10
>0.05	1.0	5
>0.10	2.0	2.5
>0.20	4.0	1.25
>0.40	8.0	0.62
>0.85	16.0	0.31