Menichini E, Di Domenico A, Bonanni L, Corradetti E, Mazzanti L, Zucchetti G
Istituto Superiore di Sanità, Rome, Italy.
J Chromatogr. 1991 Aug 30;555(1-2):211-20. doi: 10.1016/s0021-9673(01)87181-8.
A quality control test was developed for a gas chromatographic method to determine polycyclic aromatic hydrocarbons in olive oil. Fifteen oil specimens were fortified with eight three- to six-ring polycyclic aromatic hydrocarbons at levels of between 3.0 (approximate detection limit) and 360 micrograms/kg. Three sets of five equally fortified specimens were obtained and assayed at random by three operators. For each fortification level, the means of recovery yield were in the range 56-107%, and were independent of the polycyclic aromatic hydrocarbon congener specificity and the operator's capability. Excluding subsets of data associated with both the fortification level at the detection limit and a deviant polycyclic aromatic hydrocarbon term (benzo[ghi]perylene), an overall mean accuracy of 96% and a precision of 7% were achieved.
针对一种用于测定橄榄油中多环芳烃的气相色谱方法开展了一项质量控制测试。向15个油样中添加了8种三环至六环的多环芳烃，添加水平在3.0（近似检测限）至360微克/千克之间。获得了三组各五个等量添加的样品，并由三名操作人员随机进行分析。对于每个添加水平，回收率均值在56 - 107%范围内，且与多环芳烃同系物特异性及操作人员能力无关。排除与检测限添加水平以及一个异常多环芳烃项（苯并[ghi]苝）相关的数据子集后，实现了96%的总体平均准确度和7%的精密度。
