5% HNO3 swab
A cotton or polyester swab pre-wetted with 5% nitric acid, used to collect dissolved GSR for atomic absorption spectrometry or ICP-MS. Recovers lead, barium and antimony from the hand surface as dissolved ions.
A cotton or polyester swab pre-wetted with 5% nitric acid, used to collect dissolved GSR for atomic absorption spectrometry or ICP-MS. Recovers lead, barium and antimony from the hand surface as dissolved ions.
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