CAJ | 학술논문

建立了含改进剂的干灰化法和在线内标有机进样法两种样品预处理方法，采用电感耦合等离子体发射光谱（ICP-OES）测定生物油脂中的磷含量。采用仪器自带软件建立了磷元素的多元光谱拟合模型，消除了样品中铜对磷的光谱干扰。对干灰化法中改进剂的种类和加入量进行了考察，最终将改进剂选定为有机镁标样，对1，2-二油酰基卵磷脂中磷的回收率为104％±1％。干灰化法和在线内标有机进样法对磷的检测限分别为0．013μg/g 和0．264μg/g。
건립료함개진제적간회화법화재선내표유궤진양법량충양품예처리방법，채용전감우합등리자체발사광보（ICP-OES）측정생물유지중적린함량。채용의기자대연건건립료린원소적다원광보의합모형，소제료양품중동대린적광보간우。대간회화법중개진제적충류화가입량진행료고찰，최종장개진제선정위유궤미표양，대1，2-이유선기란린지중린적회수솔위104％±1％。간회화법화재선내표유궤진양법대린적검측한분별위0．013μg/g 화0．264μg/g。
Dry ashing with auxiliary method and on-line internal standard with direct introduction of organic solvent method are established to determine the P content in biological oil with inductively cou-pled plasma optical emission spectrometry (ICP-OES). The multicomponent spectral fitting model of phosphorus was used to eliminate the spectral interference of copper. In dry ashing method,the kinds and addition amount of auxiliary were investigated and the organic magnesium was finally selected as the best one. The recovery of phosphorus from 1,2-dioleoyl-sn-glycero-3-phosphocholine is 104% ± 1%. The limits of detection of two methods were 0.013 μg/g and 0.264 μg/g,respectively. Besides,the arti-cle points out the shortage of density correction in the ASTM D7111-2005 and redressed.