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高效液相色谱法测定膏剂化妆品中的甲醛释放类防腐剂
Determination of formaldehyde releasing type anticeptics in cream type cosmetic products by high performance liquid chromatography
李彦博, 赵晓冬, 陆军, 郭春梅, 陈晓辉
2015 (5):
294-297.
doi: 10.13218/j.cnki.csdc.2015.05.013
摘要
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建立了同时测定膏剂化妆品中1,3-二羟甲基-5,5-二甲基乙内酰脲(DMDMH)、1-羟甲基-5,5-二甲基乙内酰脲(1-MDMH)和5,5-二甲基乙内酰脲(DMH)的高效液相色谱法。采用Waters Atlantis T3 C18液相色谱柱(250 mm×4.6 mm,5 μm);流动相为乙腈+0.1%甲酸溶液,流速1.0 mL/min,梯度洗脱;二极管阵列检测器,检测波长210 nm;柱温35 ℃。结果表明,DMDMH,1-MDMH和DMH质量浓度分别在17.86~595.20,17.65~588.39和18.05~601.67 mg/L范围内与相应的峰面积具有良好的线性关系,相关系数分别为0.999 5,0.999 7和0.999 8,空白样品加标回收率分别为82.6%~106.2%,98.4%~110.7%和98.6%~113.0%。
A HPLC method for simultaneous determination of 1,3-dihydroxylmethyl-5,5-dimethylhydantoin (DMDMH),1-hydroxymethyl-5,5-dimethylhydantoin (1-MDMH) and 5,5-dimethylhydantoin (DMH) in cream type cosmetic products was established.The separation is performed on a Waters Atlantis T3 C18 column (250 mm×4.6 mm,5 μm) with the mobile phase consisting of acetonitrile+0.1% formic acid solution at flow rate of 1.0 mL/min for gradient elution.The detector is diode array type with wavelength of 210 nm.The column temperature is set at 35 ℃.Results showed that the calibration curves display good linearity within the ranges of 17.86-595.20,17.65-588.39 and 18.05-601.67 mg/L with correlation coefficient of 0.999 5,0.999 7 and 0.999 8 for DMDMH,1-MDMH and DMH respectively.The recoveries are within ranges of 82.6%-106.2%,98.4%-110.7% and 98.6%-113.0% respectively.
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