3.9. Attempts at typing ABO blood groups in individual human hairs of less than 4 cm length

Approximately 350 glass samples of known origin, encompassing most of the types of glass likely to be encountered in forensic science casework, have been analysed by inductively coupled plasma-atomic-emission spectrometry. The samples included 123 window glasses, 56 vehicle glasses, 91 container glasses and 58 tableware glasses. The analytical procedure provided the quantitative levels of manganese, iron, magnesium, aluminium and barium in the samples. The data for the elemental concentrations, together with refractive index, are presented in histogram form.