Givant Y, Sulman F G
Experientia. 1978 May 15;34(5):643-4. doi: 10.1007/BF01937010.
Nitroglycerin was traced in the blood of 20 patients up to 4 h after oral administration of a sustained release preparation (Nitro-Mack Retard). The determination needs an extremely sensitive method using GLC-columns with 3% SE-30 (Packard) equipped with an electron capture detector.