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Author: Charlie Cooke
Photo size: 3.3 Mpixels (9.42 MB uncompressed) - 1955x1684 pixels (6.5x5.6 in / 16.6x14.3 cm at 300 ppi)
Photo keywords: 30 seconds, chemical tests, cutting agent, marquis test, multivitamin tablet, Sam Drake, University of Derby
Published in: Chemical tests
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