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文摘
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在226-240nm波长范围内，采用紫外可见分光光度法测定了不同浓度的共轭亚油酸乙酯的吸光度，绘制出样品在不同浓度时的吸光度曲线，找出适宜的浓度范围，作线性回归分析，得到样品浓度和吸光度的线性关系，利用PE Autosystem XL-TurboMass测得样品中共轭亚油酸乙酯的准浓度，结合回归系数给出了测定共轭亚油酸乙酯含量的经验公式。 |
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其他语种文摘
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Through absorbance measurement of ethyl ester of conjugated linoleic acid from 226-240nm by UV spectrophotometry, absorbancy curve of measured samples at different concentrations was plotted. In the appropriate concentration range of samples, linear relationship between absorbancy and sample concentration was presented. The accurate concentration of conjugated linoleic acid is obtained with PE Autosystem XL-TurboMass. Combined with regression constant data, emprical formula for the quantitation of ethyl ester of conjugated linoleic acid by UV spectrophotometer is obtained. |
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来源
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光谱实验室
,2002,19(4):455-458 【扩展库】
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关键词
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紫外光谱法
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共轭亚没酸乙酯
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经验公式
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地址
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中国科学院新疆理化技术研究所, 乌鲁木齐, 830011
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1004-8138 |
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学科
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化学 |
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基金
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中国科学院西部之光人才培养计划
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文献收藏号
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CSCD:996233
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