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HPLC测定辣椒中Nonivamide含量 被引量:3
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作者 黄慧学 邓瑜 +2 位作者 刘涛 黄训才 黄光平 《食品研究与开发》 CAS 北大核心 2011年第2期115-117,共3页
建立高效液相色谱法测定辣椒样品中Nonivamide(合成辣椒碱)的方法。样品用甲醇-四氢呋喃(1∶1)混合溶液超声提取,以甲醇-水(60∶40,其中每升流动相中含25mmol硝酸银和2.5mL冰醋酸)为流动相,在280nm处测定。线性方程为Y=7180.5C+215.6(r=... 建立高效液相色谱法测定辣椒样品中Nonivamide(合成辣椒碱)的方法。样品用甲醇-四氢呋喃(1∶1)混合溶液超声提取,以甲醇-水(60∶40,其中每升流动相中含25mmol硝酸银和2.5mL冰醋酸)为流动相,在280nm处测定。线性方程为Y=7180.5C+215.6(r=0.9995),Nonivamide在0.28μg/mL~27.68μg/mL范围内呈良好的线性关系,回收率为96.72%。在天然生长的辣椒中含有Nonivamide,但其含量未超过辣椒素类物质总量的2.0%。 展开更多
关键词 辣椒 nonivamide 高效液相色谱
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Determination and Correlation of Solubility of Nonivamide in Different Solvents 被引量:3
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作者 曹义风 杨启炜 +4 位作者 邢华斌 鲍宗必 苏宝根 杨亦文 任其龙 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2014年第10期1141-1144,共4页
The solubility of nonivamide in dimethyl sulfoxide, methanol, acetone, ethyl acetate, methyl tert-butyl ether, acetonitrile, n-hexane and water over the temperature range of 293.2 K to 323.2 K was measured. The result... The solubility of nonivamide in dimethyl sulfoxide, methanol, acetone, ethyl acetate, methyl tert-butyl ether, acetonitrile, n-hexane and water over the temperature range of 293.2 K to 323.2 K was measured. The results reveal that the solubility of nonivamide is greatly influenced by the hydrogen-bond basicity of solvent and increases with temperature. The experimental data were correlated with the modified Apelblat equation. The dissolution enthalpy and entropy of nonivamide in different solvents were obtained from the correlation of lnx with 1/T using the van't Hoff equation. The calculated nonivamide solubility is in good agreement with experimental data for most of the solvents. 展开更多
关键词 SOLUBILITY nonivamide HYDROGEN-BONDING interaction Modified Apelblat equation van’t HOFF PLOTTING
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