發(fā)布時(shí)間：2019-07-01 11:28

【摘要】：建立了紫外可見分光光度法測定橄欖油中的葉綠素銅含量的檢測方法,樣品特征波長為653nm,優(yōu)化了波長校正方法,校正曲線y=0.032x+0.024,R~2=0.9969,對同一橄欖油添加回收率為81%~97%,精密度0.20%~2.22%�？瞻字档臉�(biāo)準(zhǔn)偏差S=0.0066,檢出限LOD=3S/K=0.62mg/kg,定量限LOQ=10S/K=2.06mg/kg,K=0.032為線性方程斜率。選擇三個(gè)671nm吸光度差異較大的三個(gè)樣品(其中一個(gè)最小、一個(gè)居中、一個(gè)最大),分別在檢出限、定量限、兩倍定量限做添加回收,檢出限加標(biāo)回收率為48%~90%,定量限加標(biāo)回收率為77%~93%,兩倍定量限加標(biāo)回收率為89%~96%。
[Abstract]:A method for the determination of copper chlorophyll in olive oil by UV visible spectrophotometry was established. The characteristic wavelength of the sample was 653 nm. The wavelength correction method was optimized. the correction curve y 鈮，

本文編號(hào)：2508433