Spot tests

Does anyone know of a safe, simple technique (such as a spot
test) for detection of sulphur in paper-based material?  I was also
wondering if a safe way of spot testing for lignin had been found to
replace the aniline sulphate and phloroglucinol tests ?

Lydia Egunnike
Senior Conservator
Preservation Services
State Library of Queensland
PO Box 3488 South Brisbane
QLD Australia 4101
+61 7 3840 7779
Fax: +61 7 3840 7943


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                  Conservation DistList Instance 13:54
                  Distributed: Wednesday, May 3, 2000
                       Message Id: cdl-13-54-019
                                  ***