Page 8 - Shimadzu PDA-8000

Shimadzu's Unique Pulse Distribution Analysis Photometry

Pulse Height Distribution Analysis (PDA) Method Provided as Standard

The spectral intensity signal from the detector obtained for each pulse discharge is fed in for each analysis element, and
converted into a frequency distribution. By performing statistical processing appropriate for each analysis element, the
measurement accuracy can be improved and information on the element form can be extracted.

Discharge crater

Light emitting
section

1 discharge 6 discharges 2000 discharges

C Spectral intensity ････････

Si ････････

Mn ････････

Internal Standard Element Monitoring

The spectral intensity of internal standard elements is monitored, and Spectral intensity IH
only pulses with the intensity within the specified range are processed Valid range
as valid. Increased accuracy is achieved by eliminating the data outside IL
the range from the statistical processing.

Internal standard element Time
IH IL : Discriminator level
Valid data
Invalid data

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