申请人:THE SECRETARY OF STATE FOR DEFENCE
公开号:US20200046266A1
公开(公告)日:2020-02-13
The present invention provides a method for the production of a metal halide adduct of S
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, in particular a specific copper adduct of S
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4
, for the visualisation of a print on an object, in particular a fingerprint on a metal object. The present invention also provides a method and apparatus for visualising a print on an object, using S
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2
obtained from a metal halide adduct of S
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.