(目的)建立用高效液相色谱法测定橘红枇杷片中柚皮苷含量的方法;(方法)除去橘红枇杷片糖衣后,研细,加入甲醇,加热回流,放冷,补足损失质量,过滤,取滤液进样。色谱仪为安捷伦HP-1100型,色谱柱为Agilent ZORBAX C 18柱,紫外测定检测波长选...(目的)建立用高效液相色谱法测定橘红枇杷片中柚皮苷含量的方法;(方法)除去橘红枇杷片糖衣后,研细,加入甲醇,加热回流,放冷,补足损失质量,过滤,取滤液进样。色谱仪为安捷伦HP-1100型,色谱柱为Agilent ZORBAX C 18柱,紫外测定检测波长选定为283 nm,流动相为乙腈-0.1%磷酸(体积比20∶80),流速为1 mL/min。结果表明,在柚皮苷质量浓度为7.237~115.8μg/mL范围内,线性关系良好(r=0.99994,n=6),方法回收率为98.68%(n=6)。(结论)本方法准确、灵敏度高,重现性好,可作为橘红枇杷片质量控制的检测方法。展开更多
WHEN Zhang Hongyan plays the completely traditional Chinese musical instrument, the pipa, she is called a "pipa fairy maiden" by her audiences, "the pipa queen with outstanding talent and appearance&quo...WHEN Zhang Hongyan plays the completely traditional Chinese musical instrument, the pipa, she is called a "pipa fairy maiden" by her audiences, "the pipa queen with outstanding talent and appearance" by the Hong Kong press and "a national flower of the Women Philharmonic Orchestra" in Singapore. Having completed her master’s degree program at the folk music department of the Central Conservatory of Music. Zhang is continuing there as a teacher. On the unforgettable night of June 9, 1992, Zhang Hongyan presented her first solo concerto concert at the Beijing Concert Hall, in cooperation with the celebrated Central Philharmonic Orchestra based in Beijing and its famous conductor Hu Yongyan. This concert made her the first folk musical instrument player to present a special concerto concert in cooperation with a Western style orchestra. It is the result of many years of effort. Zhang was born in Shengxian County, Zhejiang Province, famous as the home of Yue Opera. Her father is a musician with a Yue展开更多
AN entirely new pipa solo was held at the International Artistic World inside the Beijing Crown Holiday Inn Hotel on the night of August 17, 1996. Though the young pipa player
文摘WHEN Zhang Hongyan plays the completely traditional Chinese musical instrument, the pipa, she is called a "pipa fairy maiden" by her audiences, "the pipa queen with outstanding talent and appearance" by the Hong Kong press and "a national flower of the Women Philharmonic Orchestra" in Singapore. Having completed her master’s degree program at the folk music department of the Central Conservatory of Music. Zhang is continuing there as a teacher. On the unforgettable night of June 9, 1992, Zhang Hongyan presented her first solo concerto concert at the Beijing Concert Hall, in cooperation with the celebrated Central Philharmonic Orchestra based in Beijing and its famous conductor Hu Yongyan. This concert made her the first folk musical instrument player to present a special concerto concert in cooperation with a Western style orchestra. It is the result of many years of effort. Zhang was born in Shengxian County, Zhejiang Province, famous as the home of Yue Opera. Her father is a musician with a Yue
文摘AN entirely new pipa solo was held at the International Artistic World inside the Beijing Crown Holiday Inn Hotel on the night of August 17, 1996. Though the young pipa player
