337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看
45 4 Vol. 45 No. 4
2015 8 Aug 2015

ٙĿcyԇ

HPLCyN--O--L-ҰἰɷNs|(zh)
ռd1Ǭ1x1S2Т3 4ѩ1* 1. FʡЇƌW(xu)ԺȻa(chn)ﻯW(xu)c(din)(sh)F F(yng) 5500022. Ї܊tԺ 1000393. ˎоԺ 3001934. Fݰ`I(y)Fˎɷ޹˾F 561000
ժҪY101gwN--O--L-ҰᣨM042s|(zh)N--L-ҰᣨM034ͱẬyøЧҺɫVHPLC˷Լ״-0.1%ᣨvv=7525ϴÓyM042Լ״-0.01%ˮҺݶϴÓy2(g)֪s|(zh)M04276%֪s|(zh)δ^(gu)11%ԓgw|(zh)?j)ȿط?/span>
P(gun)I~N--O--L-ҰHPLCs|(zh)
ЈD(li)̖R927.2īIRaA¾̖1009-9212201504-0068-05
Determination of N-Benzoyl-O-benzoyl-L-tyrosine and Two Impurities by HPLC
HU Zhan-xing1, WANG Qian-li1, LIANG Guang-yi1, HUANG Zheng-ming2, LIU Chang-xiao3, XIA Wen4, CAO Pei-xue1* (1.The Key laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550002, China; 2. 302 Hospital of PLA, Beijing 100039, China; 3. Tianjin Institute of Pharmaceutical Research, Tianjin 300193, China; 4. Guizhou Bailing Enterprise Group Pharmaceutical CO., Ltd., Anshun 561000, China)
AbstractN-Benzoyl-O-benzoyl-L-tyrosine(M042), an intermediate for dipeptide Y101, and two impurities co-existed with M042 were determined with HPLC. An external standard method was used for the analysis of M042 with methanol-0.01% formic acid(7525)as the mobile phase. The contents of the two impurities were determined using methanol -0.01% phosphoric acid as the gradient elution. In a typical sample the content of M042 was not less than 76% and the amount of impurities was not exceeding 11%. This method has been used for the quality control of M042.
Key wordsN-benzoyl-O-benzoyl-L-tyrosine; HPLC; impurities
Ŀ ʮ塱شˎ(chung )ƿƼش(zhun)헣2011ZX09102-009-002FʡˎFƼa(chn)I(y)о_(ki)l(f)(zhun)헣ǭƺˎ֣2012 5054Fʡ(chung )˲ŻأǭI(lng)l(f)20111̖
ߺ(jin)飺ռd1984-μоTҪˎаl(f)E-mailhuzhxi88@163.com
“(lin) ϵ ˣ ѩоTҪˎE-mailsnowcpx@126.com
ոڣ 2015-03-1
337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看