10 Day Study

BS002:

Clean, and uncorroded sample (annotated).

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BS004:

Sample with an eccrine fingerprint, cleaned with micro 90 before taking XPS. Observed over 4 days.

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C 1s peak

Cu 2p peak

Zn 2p peak

BS009 & BS011:

Samples with eccrine fingerprints, not cleaned with micro 90 before taking XPS.

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Cu2p

Zn2p