Turner C E, Ma C Y, Russell M H, Elsohly M A
Bull Narc. 1981;33(1):43-54.
A method for the determination of encapsulated d-limonene dimercaptan (d-LDM), a possible marker for Cannabis sativa L. sprayed with herbicide, has been developed. The methodology includes a single-step extraction, followed by gas chromatography with flame photometric detector (FDP) using n-octadecyl mercaptan (n-octadecylthiol) as an internal standard. A liner relationship was obtained from spiked samples with an average coefficient of variation of 9.0 per cent. The method has been used to determine part-per-million levels of LDM in actual field experiments in Mexico. The FDP limit was found to be 7 ng for d-LDM.
已开发出一种用于测定包封型d-苎烯二硫醇（d-LDM）的方法，d-LDM可能是喷洒除草剂的大麻的一种标志物。该方法包括一步萃取，然后是使用正十八烷基硫醇作为内标的带有火焰光度检测器（FPD）的气相色谱法。加标样品得到线性关系，平均变异系数为9.0%。该方法已用于墨西哥实际田间试验中百万分之一水平的LDM测定。发现FPD对d-LDM的检测限为7纳克。
