原文由 redanqi 发表:
5. Allowance
本标准检出限为0.26ng,若取20.0g大米样品,其最低检出浓度为0.013mg/kg;标准曲线的线性范围为0~15ng;平均添加回收率为108.4%;相对标准偏差≤10%。
The detect limit is 0.26mg. The lowest concentration detectable should be 0.013mg/kg if the amount of the rice sample is 2.0 g. The linear of the standard curve is0-15 mg; the average spiked recovery is 108.4%, and the relative standard deviation is not greater than 10%.
姐姐,你把20.0g写成2.0g啦,0~15ng写成0-15mg啦.另外农残里的添加回收率应该是fortified recovery吧?
添加回收率(fortified recovery) 空白样品中加入一定浓度某一种或几种农药(C1)后,其样品中此农药浓度测定值(C2)对加入值的百分率(F)。