摘要
采用连续浸提分离技术,将苹果中的Se以水溶态、有机物结合态和残渣态3种形态选择性地提取,并用HG-AFS法检测了各形态的硒含量和总硒含量。结果表明：该方法硒的检出限为0.028 ng/mL,线性范围为0~10ng/mL,精密度为2.8%,回收率为94.15%~108.95%;苹果中硒的3种形态含量不同,水溶态〉有机结合态〉残渣态,三者的加和略小于总硒含量,误差在2.6%以内。
Selenium in apple was divided into three fractions：（1） water soluble,（2） organic compound,（3） residual by using sequential extraction separation technology,all the three forms of selenium and total selenium were determined with HG-AFS. The experimental results indicated that detection limit of selenium was 0.028 ng/mL,the linearity range was 0 ~ 10 ng/mL,the precision was 2.81%,and recovery percent was 94.15 ~ 108.95%. The content of three forms of selenium in apple were different,water soluble organic compound residual,and the sum of three was slightly smaller than total selenium,the error was less than 2.6%.
出处
《井冈山大学学报（自然科学版）》
2015年第5期33-36,共4页
Journal of Jinggangshan University (Natural Science)
基金
福建省教育厅A类科技项目(JA12314)
