language: de

Auswertung von ionenempfindlichen Photoplatten durch ein computergesteuertes Graukeil-Densitometer

H.-J.Knab*
Max-PIanck-Institut für Chemie (Otto-Hahn-Institut)
Mainz
Z. Naturforsch. 35a, 18—23 (1980);

[eingegangen am 12. November 1979]

[Herrn Prof. H. Hintenberger zum 70, Geburtstag gewidmet]

[Evaluation of Ion-sensitive Photographic Plates in Using an Optical Wedge Microdensitomäer.]

A procedure for the automatic evaluation of ion-sensitive photographic plates used in spark source mass spectrography is described. Using an optical wedge microdensitometer the linetransmittanoe profiles are measured and stored. In a second step the transmittance profiles are converted into ion-intensity profiles, according to the equation of Franzen et al. [8], and integrated. The two methods, peak height and integrated intensities, are compared in terms of precison and accuracy.

1. Einleitung