福建分析测试
福建分析測試
복건분석측시
FUJIAN ANALYSIS & TESTING
2012年
1期
52-56
,共5页
分光光度法%乳粉%左旋肉碱
分光光度法%乳粉%左鏇肉堿
분광광도법%유분%좌선육감
spectrophotometry%milk powder%L-carnitine
本文通过优化条件建立了一种测定乳粉中左旋肉碱的新方法。实验表明,在2.1~22.0ug/mL浓度范围内呈良好的线性相关,回收率在97.6%~99.0%之间,RSD为0.2%(n=7)。方法操作简单、快速,同时准确度高、精密度好。
本文通過優化條件建立瞭一種測定乳粉中左鏇肉堿的新方法。實驗錶明,在2.1~22.0ug/mL濃度範圍內呈良好的線性相關,迴收率在97.6%~99.0%之間,RSD為0.2%(n=7)。方法操作簡單、快速,同時準確度高、精密度好。
본문통과우화조건건립료일충측정유분중좌선육감적신방법。실험표명,재2.1~22.0ug/mL농도범위내정량호적선성상관,회수솔재97.6%~99.0%지간,RSD위0.2%(n=7)。방법조작간단、쾌속,동시준학도고、정밀도호。
In this study,a new spectrophotometric method had been developed to detect L-carnitine in the milk powder by optimizing the react conditions.The experimental results demonstrate that The absorbtion of the solution had a direct relationship with the L-carnitine concentration in the range of 2.1~22.0ug/mL.The revovery of the method was in the range of 97.6%~99.0% and the RSD was 0.2%(n=7).The proposed method owns the advantages of easy-operation,rapid,high accuracy and good precision.