The quantitative study of main alkaloids from the latex of Paperver somiferum / Surapong Kengtong = การศึกษาปริมาณอัลคาลอยด์หลักจากยางฝิ่น / สุรพงษ์ เก็งทอง
The quantitative studies of four main alkaloids namely morphine, codeine, thebaine and narcotine from the latex of Papaver somniferum L. of white flowered and red flowered, indicated the presence of highest amount of morphine among other alkaloids. It has been found that the contents of the four main alkaloids from the second lancings vary from day to day.