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. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / SCIENTIFIC PICTURE RESEARCH |
Bildgröße: | 5401 px × 3601 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | vorhanden |
Restrictions: | - |