HPLC法测定白花前胡中白花前胡丙素和紫花前胡中紫花前胡苷的含量?

...engthwas323nm,334nmforPd-IaandforNDK.Thecalibrationcurvesshowedgoodlinearityintherangeof0.08～0．8　μgand0.01～0.1μg,r=0.9999and0.9999respectively.Theaveragerecoverieswere98.53%～99.27%and97.60%～99.87%,RSDwaslessthan2%respectively.Conclusion:Themethodissimple,sensitive,rapidandaccurate,andc...

HPLC法测定白花前胡中白花前胡丙素和紫花前胡中紫花前胡苷的含量?

...engthwas323nm,334nmforPd-IaandforNDK.Thecalibrationcurvesshowedgoodlinearityintherangeof0.08～0．8　μgand0.01～0.1μg,r=0.9999and0.9999respectively.Theaveragerecoverieswere98.53%～99.27%and97.60%～99.87%,RSDwaslessthan2%respectively.Conclusion:Themethodissimple,sensitive,rapidandaccurate,andc...

复方隔山消颗粒对实验性慢性萎缩性胃炎大鼠胃泌素和胃动素的影响

...。辅以党参、茯苓、白术、白芍益气养阴、健脾养血，法半夏、焦三仙、枳实祛痰化食、消积导滞，三七活血化瘀，黄连清胃热，甘草调和诸药，共奏养阴益气、健脾导滞、祛瘀生新之功效。GAS由胃窦G细胞产生，是胃黏膜的主...

正交设计-重复试验法优选当归芍药散的提取工艺

...a.芍药苷表2　正交试验L9(34)计算表NO.提取率/‰结果/%yikYi13.9343.3757.30924.5074.6099.11634.5764.1338.70944.4524.3778.82953.6503.9777.62763.9003.7117.61174.1884.1618.34982.4162.5935.00994.7674.6729.439表3　方差分析表方差来源离差平方和自由度均方和F显著性...

RhokinaseregulatesrenalbloodflowbymodulatingeNOSactivityinischemia-reperfusionoftheratkidney

...ioncharacterizedbyareducedendothelium-dependentvasodilatationandsubsequentlyimpairedbloodflow.Inthisstudy,weinvestigatedtheroleofRhokinaseinendothelialnitricoxidesynthase(eNOS)-mediatedregulationofrenalbloodflowandvasomotortoneinrenalI/R.MaleWistarratsweresubjectedto60-minbilateralclampingoftherenal...

受湿有内外之分

...，微而不甚者，宜健脾燥湿之药，如苍术．白术、厚朴、半夏、木香、桑皮之类，譬如些须③之湿，以灰土浥④之，则湿自干也。湿热在于小腹膀胱之间，或肿，或泻，或小便不通，宜用渗泄之药，如猪苓、泽泻、茯苓、滑石、...

毛细管区带电泳测定芦荟中的有效成分

...herbAloeveraL.var.chinensis(Haw.)Bergeraswellasitsactivecomponentsshowedmanyimportantpharmacologyactivities.Inordertofindaneasyandlow-costmethodtocontrolthequalityoftheherb,aCZEmethodforthedeterminationoftheactivecomponentsaloinandaloe-emodininAloeveraL.var.chinensis(Haw.)Bergerwasdevelopedinthiswor...

固相萃取与高效液相色谱联用测定宠物食品中三聚氰胺

...方差因子RWP，以及拟合优值S的数值作判据，其中RP=｜Yi(obs)－Ｙi(calc)｜Yi(obs)(5)　　RWP=Wi[Yi(obs)－Ｙi(calc)]2Wi[Yi(obs)]2１／２(6)　　S=Wi[Yi(obs)－Ｙi(calc)]2/(N－Ｐ)(7)　　式中Yi(obs)为在２θi位置观察的衍射强度；Yi(calc)为在2...

半夏与水半夏化学成分的研究

半夏是天南星科半夏属植物，是临床上常用的一味有毒中药，配伍量大［1］。但上世纪70年代以来，其他同属或同科不同属植物块茎当作半夏者大行于市，如水半夏多于半夏，为保证临床应用半夏的安全有效。现就半夏与水半夏...

火焰原子吸收光谱法测定工作场所空气中锰的不确定度评定

...trolofdeterminationprocess.MethodsWeusethemethodaboutevaluationofuncertaintyinmeasurementtoanalyzethesourceofuncertaintyindeterminationprocessandthentodistinguishthekeyfactorsofuncertainty.ResultsTheuncertaintyfromsampling,standardstocksolutiondiluted，standardcurveandrecoveriesarethekeyfactors.Con...