GSR Sample Collection Device

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There are basically two types of analysis which can be conducted upon collected residues. The first type of analysis is conducted by scanning electron microscopy (SEM) upon residue s which have been collected on sticky metal stubs. The second type of analysis is conducted by atomic absorption (AA) analysis upon residues which have been collected on cotton-tipped swabs. Be sure to check with your forensic laboratory to determine which type of analysis they conduct. Show more