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Filter combinations and light sources for fluorescence microscopy of quinacrine mustard or quinacrine stained chromosomes

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Summary

The efficiency of various combinations of primary and secondary filters, and light sources for the fluorescence microscopy of chromosomes stained with quinacrine mustard or quinacrine has been studied quantitatively. Using epi-illumination, strong fluorescence could be obtained with a mercury or xenon lamp in combination with two KP 490 short-wave pass interference filters (tilted to an angle of 60° with the excitation beam) as primary filter, and a K 490 as a secondary filter. The combination of a mercury lamp and a narrow band interference filter with a maximal transmission at about 436 nm as a primary filter together with a K 490 secondary filter results in a good visual image contrast, sufficiently strong fluorescence, and a relatively slow rate of fading.

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Authors and Affiliations

  1. Department of Histochemistry, Laboratory for Pathology, University of Leiden, Leiden, The Netherlands

    M. van der Ploeg & J. S. Ploem

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  1. M. van der Ploeg
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  2. J. S. Ploem
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van der Ploeg, M., Ploem, J.S. Filter combinations and light sources for fluorescence microscopy of quinacrine mustard or quinacrine stained chromosomes. Histochemie 33, 61–70 (1972). https://doi.org/10.1007/BF00304227

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  • DOI: https://doi.org/10.1007/BF00304227

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