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1、延齡草與吉林延齡草根莖及須根中3種皂苷成分的含量測定 [摘要]比較延齡草與吉林延齡草藥材根莖與須根間主要成分的含量差異,利用HPLCCAD同時測定了3種主要成分重樓皂苷Ⅶ、偏諾皂苷元3βOαL吡喃鼠李糖基(1→4)[αL吡喃鼠李糖基(1→2)]OβD葡萄糖、重樓皂苷Ⅵ的含量。色譜條件:TSKgelODS(46mm×250mm,5μm)色譜柱,乙腈水(43∶57)等度洗脫,流速為1mL?min-1,進(jìn)樣量為20μL。電霧式檢測器(CAD):工作氣壓為35psi(1psi=6895kPa),霧化器溫度為35℃。3種
2、甾體皂苷良好分離,線性關(guān)系、穩(wěn)定性、精密度、重復(fù)性、加樣回收試驗均符合中藥質(zhì)量分析要求。運用IBMSPSSStatistics20分析軟件進(jìn)行主成分分析,結(jié)果顯示,頭頂一顆珠的來源包含了2種延齡草屬植物,且吉林延齡草為主要資源;7批延齡草樣品和9批吉林延齡草的根莖之間3種皂苷成分的含量存在不顯著差異;但是根莖與須根之間3種皂苷成分的含量存在顯著的差異?! 關(guān)鍵詞]HPLCCAD;延齡草與吉林延齡草;根莖與須根;甾體皂苷;含量測定;主成分分析 [Abstract]Tocomparethedifferenceso
3、fmaincomponentsbetweeninrhizomaandfibrousrootofTrilliumtschonoskiiandTkamtschaticum,asimple,accurateandreliablehighperformanceliquidchromatographycoupledwiththechargedaerosoldetector(HPLCCAD)methodwasdevelopedandthensuccessfullyappliedforsimultaneousquantitat
4、iveanalysisofthreecompounds,includingpolyphyllinⅦ(T1),pennogenin3OαLrhamnopyranosyl(1→2)[αLrhamnopyranosyl(1→4)]βDglucopyranoside(T2),polyphyllinⅥ(T3),in16batchesofrhizomeand14batchesoffibrousrootTheanalyteswerewellseparatedfromotherconstituentsonTSKgelODS(46
5、mm×250mm,5μm)withacetonitrilewater(43∶57)ataflowrateof10mL?min-1Theinjectionvolumewas20μLThenitrogeninletpressurefortheCADsystemwas35psiandthenebulizerchambertemperaturewas35℃Themethodwasvalidatedforlinearity(r>09990),intraandinterdayprecision(029%30%),repeat
6、ability(045%14%),stability(19%26%),recovery(1001%1002%,12%18%),limitsofdetection(0002g?L-1),andlimitsofquantification(0005g?L-1)Theobtaineddatasetswereprocessedbyprincipalcomponentanalysis(PCA)anditshowedthattherewasalmostnodifferenceinrhizomaofTtschonoskiian
7、dTkamtschaticumfromdifferentareasofChinaHowever,the3majorcompoundsexistedinrhizomaweredifferentfromthoseinfibrousrootofTtschonoskiiandTkamtschaticum [Keywords]HPLCCAD;TrilliumtschonoskiiandTrilliumkamtschaticum;rhizomaandfibrousroot;steroidsaponin;determinat
8、ion;principalcomponentanalysis(PCA) 延齡草為百合科延齡草屬植物,全世界共有約50種,我國有3種,即延齡草TrilliumtschonoskiiMaxim、吉林延齡草TkamtschaticumPall,分布于吉林、西藏延齡草TgovanianumWall(僅見于西藏卡馬河下游)[1]。其中,延齡草Ttschonoskii被《湖北省中藥