检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:吴延晖[1] 许泓[1] 肖亚兵[1] 何佳[1] 张骏[1] 林安清[1] 张曼[1]
出 处:《日用化学工业》2009年第6期439-441,共3页China Surfactant Detergent & Cosmetics
摘 要:采用高效液相色谱法,研究检测了化妆品中肾上腺素、去甲肾上腺素、异丙肾上腺素的残留量。得到的色谱条件:W aters Atlantis C18柱(5μm,250 mm×4.60 mm)为分析柱,流动相V(甲醇)∶V(0.02 mol/L磷酸二氢钾溶液)=4∶96,荧光检测器检测,激发波长为285 nm,发射波长为340 nm。结果表明,肾上腺素、去甲肾上腺素在0.025 mg/L^2.5 mg/L内,异丙肾上腺素在0.05 mg/L^5.0 mg/L内,其峰面积与质量浓度呈良好的线性关系。该方法回收率为95.6%~99.4%,RSD为3.6%~6.1%(n=8)。A HPLC method for the determination the residual of catecholamines including epinephrine, norepinephrine and isoprenaline in cosmetics was established. The extract was analyzed on Waters Atlantis C18 column ( 5 um, 250 mm × 4. 60 mm ) with mobile phase consisted of V ( methanol ) : V ( 0. 02 mol/L monopotassium phosphate solution ) = 4: 96. The detection was conducted by fluorescence detector with excitation wavelength of 285 nm and emission wavelength of 340 nm. Results showed that as the concentration of epinephrine, norepinephrine is in the range of 0. 025 mg/L - 2. 5 mg/L, and the concentration of isoprenaline is in the range of 0. 05 mg/L- 5.0 mg/L, the relationship between concentration and the corresponding peak area shows good linearity. The recovery achieves 95.6%- 99.4%. The RSD of the method is 3.6% -6. 1% (n =8).
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.40