Lund A
Forensic Sci Int. 1979 Jul-Aug;14(1):75-7. doi: 10.1016/0379-0738(79)90157-9.
On spectrophotometric determination of carboxyhemoglobin in blood collected from the liver of three bodies at three days post-mortem, false positive results were found (5--15 per cent saturation), since samples of heart blood collected a few hours after death did not contain carboxyhemoglobin.