Abstract In this work. in order to investigate and optimize the dispersion temperature of the cyanocarbon compound(O-Chlorobenzylidene Malononitrile or OCBM). three methods of preparation of the sample with solid phase micro extraction. sampling using two-component vacuum traps and temperature scanning in the injection port using the gas chromatography apparatus used are located. https://parisnaturalfoodes.shop/product-category/vitd3-400-iu-liquld/