Dent R G
J Assoc Off Anal Chem. 1980 Nov;63(6):1266-8.
The present official AOAC method (44.120(a)(b), 13th Ed.) for extracting light filth from ground allspice uses flammable solvents and gives poor filth recoveries. An improved method has been developed which uses a single pretreatment with 40% isopropanol and hydrochloric acid followed by wet sieving. After deaeration by boiling, the light filth is extracted from 40% isopropanol-Tween 80-tetrasodium EDTA with light mineral oil. Reports from all 6 collaborators showed that the proposed method resulted in 90 and 89% average recoveries of rodent hairs and insect fragments, respectively. The proposed method is recommended for adoption as official first action to replace AOAC (44.120(a)(b)) for allspice.
现行的美国官方分析化学师协会（AOAC）方法（第13版，44.120(a)(b)）用于从磨碎的多香果中提取轻质杂质，该方法使用易燃溶剂且杂质回收率低。已开发出一种改进方法，该方法先用40%异丙醇和盐酸进行单一预处理，然后进行湿筛。经煮沸脱气后，用轻质矿物油从40%异丙醇-吐温80-乙二胺四乙酸四钠中提取轻质杂质。所有6位协作人员的报告表明，所提议的方法对啮齿动物毛发和昆虫碎片的平均回收率分别为90%和89%。建议采用所提议的方法作为第一暂行标准来替代AOAC针对多香果的（44.120(a)(b)）方法。
