55.6 MB (2.4 MB compressed)
5401 x 3601 pixels
45.7 x 30.5 cm ⏐ 18.0 x 12.0 in (300dpi)
SCIENTIFIC PICTURE RESEARCH / SCIENCE PHOTO LIBRARY SCIENTIFIC PICTURE RESEARCH / SCIENCE PHOTO LIBRARY
Chemistry students in an undergraduate teaching laboratory using digital pH meters to measure the pH of chemical solutions, whilst being supervised by postgraduate demonstrators who are wearing the blue lab coats.
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