沈阳化工大学学报
瀋暘化工大學學報
침양화공대학학보
JOURNAL OF SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
2015年
2期
123-127
,共5页
富硒北五味子%硒%氢化物发生-原子吸收光谱法%正交实验
富硒北五味子%硒%氫化物髮生-原子吸收光譜法%正交實驗
부서북오미자%서%경화물발생-원자흡수광보법%정교실험
selenium-enriched fructus schisandrae chinensi%selenium%hydride generation atomic absorption spectrometry%orthogonal experiments
测定富硒北五味子中硒的含量,并优化仪器测定条件.以吸光度为评价指标,以氢化物发生-原子吸收光谱法为测定手段,采用正交实验方案对富硒北五味子中硒含量测定方法进行条件优选.结果表明：载液质量分数1%,还原剂质量分数1%,原子化温度810℃,载流流速280 mL/min为最佳条件.硒质量浓度在0~40．0μg/L范围内,吸光度与质量浓度具有良好的线性关系,相关系数R=0．999；精密度RSD为1．8%；样品平均回收率为99．6%.该法操作简便、结果准确,可用于测定富硒北五味子中硒的含量.
測定富硒北五味子中硒的含量,併優化儀器測定條件.以吸光度為評價指標,以氫化物髮生-原子吸收光譜法為測定手段,採用正交實驗方案對富硒北五味子中硒含量測定方法進行條件優選.結果錶明：載液質量分數1%,還原劑質量分數1%,原子化溫度810℃,載流流速280 mL/min為最佳條件.硒質量濃度在0~40．0μg/L範圍內,吸光度與質量濃度具有良好的線性關繫,相關繫數R=0．999；精密度RSD為1．8%；樣品平均迴收率為99．6%.該法操作簡便、結果準確,可用于測定富硒北五味子中硒的含量.
측정부서북오미자중서적함량,병우화의기측정조건.이흡광도위평개지표,이경화물발생-원자흡수광보법위측정수단,채용정교실험방안대부서북오미자중서함량측정방법진행조건우선.결과표명：재액질량분수1%,환원제질량분수1%,원자화온도810℃,재류류속280 mL/min위최가조건.서질량농도재0~40．0μg/L범위내,흡광도여질량농도구유량호적선성관계,상관계수R=0．999；정밀도RSD위1．8%；양품평균회수솔위99．6%.해법조작간편、결과준학,가용우측정부서북오미자중서적함량.
Determines the selenium content of selenium-enriched fructus Schisandrae chinensi,and opti-mizes the condition of determination. The condition of determination was studied by choosing absorbance as evaluation data,hydride generation atomic absorption spectrometry as test means,and using orthogonal experiment scheme is to optimize the conditions on the determination method of selenium content in Fruc-tus schisandrae chinensis. The carrier liquid concentration of 1 %, the concentration of the reducing of 1 % atomization temperature of 810 ℃,and carrier flow rate of 280 mL/min were the best conditions. Selenium concentration in the range of 0~40. 0 μg/L,had a good linear relationship between the absor-bance and the concentration,the correlation coefficient R=0. 999;precision RSD was 1. 8 %;the average recovery was 99. 6 %. The method is simple,accurate,and can be used for the determination of selenium in selenium enriched Schisandra chinensis.
