Turner C E, Bouwsma O J, Billets S, Elsohly M A
Biomed Mass Spectrom. 1980 Jun;7(6):247-56. doi: 10.1002/bms.1200070605.
Cannabis sativa L. contains more than 420 different constituents. Sixty-one of these constituents are cannabinoids. The electron voltage selected ion monitoring technique was used in the study of this unique group on natural compounds. Mass spectra of each compound were recorded at various eV settings (5.5-21 eV). The electron voltage selected ion recordings were obtained by plotting the relative intensities of characteristic fragment ions against electron voltage. The method was proven useful in the structure analysis of cannabinoids since it requires only minute quantities of sample. It was possible to recognize homologs and to differentiate positional and double bond isomers as well as cannabinoids with the same molecular weight.
大麻含有420多种不同成分。其中61种成分为大麻素。电子电压选择离子监测技术用于研究这一独特的天然化合物组。在不同的电子伏特设置（5.5 - 21电子伏特）下记录每种化合物的质谱。通过绘制特征碎片离子的相对强度与电子电压的关系图来获得电子电压选择离子记录。该方法被证明在大麻素的结构分析中很有用，因为它只需要微量的样品。能够识别同系物，区分位置异构体和双键异构体以及分子量相同的大麻素。
