Freeman C C
J Assoc Off Anal Chem. 1985 Sep-Oct;68(5):894-6.
A new approach to the isolation of light filth from the 3 commercial forms of sage was studied collaboratively. It incorporates a simple isopropanol defatting, followed by saturation of the product with brine by alternately heating and cooling, and subsequent trapping of filth from tap water with olive oil. This method circumvents the use of hazardous, expensive solvents and more time-consuming pretreatment procedures. Overall recoveries were 92.1% for rodent hair and 78.7% for insect fragments on clean, easy-to-read papers. An additional blending step was necessary to obtain satisfactory recovery of rodent hair fragments from whole sage. The method has been adopted official first action for light filth in rubbed and ground sage only.
共同研究了一种从三种商业形式的鼠尾草中分离轻质杂质的新方法。该方法包括简单的异丙醇脱脂，然后通过交替加热和冷却使产品用盐水饱和，随后用橄榄油从自来水中捕获杂质。该方法避免了使用危险、昂贵的溶剂以及更耗时的预处理程序。在干净、易于阅读的纸张上，啮齿动物毛发的总回收率为92.1%，昆虫碎片的总回收率为78.7%。从完整的鼠尾草中获得令人满意的啮齿动物毛发碎片回收率还需要额外的混合步骤。该方法仅被官方首次采用用于揉搓和研磨鼠尾草中的轻质杂质。
