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Author: Charlie Cooke
Photo size: 2.4 Mpixels (6.74 MB uncompressed) - 1561x1510 pixels (5.2x5 in / 13.2x12.8 cm at 300 ppi)
Photo keywords: 1.5 minutes, chemical tests, marquis test, morphine sulphate, Sam Drake, University of Derby
Published in: Chemical tests