楊印軍+孫欣光+楊杰+李齊+張潔+趙陽+馬百平+郭寶林



[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:TSK gel ODS(46 mm×250 mm, 5 μm)色譜柱,乙腈水(43∶57)等度洗脫,流速為1 mL·min-1,進樣量為20 μL。電霧式檢測器(CAD):工作氣壓為35 psi(1 psi=6895 kPa),霧化器溫度為35 ℃。3種甾體皂苷良好分離,線性關系、穩定性、精密度、重復性、加樣回收試驗均符合中藥質量分析要求。運用IBM SPSS Statistics 20分析軟件進行主成分分析,結果顯示,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]To compare the differences of main components between in rhizoma and fibrous root of Trillium tschonoskii and T kamtschaticum, a simple, accurate and reliable high performance liquid chromatography coupled with the charged aerosol detector (HPLCCAD) method was developed and then successfully applied for simultaneous quantitative analysis of three compounds, including polyphyllin Ⅶ (T1),pennogenin 3OαLrhamnopyranosyl(1→2) [αLrhamnopyranosyl(1→4)]βDglucopyranoside (T2),polyphyllin Ⅵ (T3), in 16 batches of rhizome and 14 batches of fibrous root The analytes were well separated from other constituents on TSK gel ODS (46 mm×250 mm, 5 μm) with acetonitrilewater (43∶57) at a flow rate of 10 mL·min-1 The injection volume was 20 μL The nitrogen inlet pressure for the CAD system was 35 psi and the nebulizer chamber temperature was 35 ℃The method was validated for linearity (r>0999 0), intra and interday precision (029%30%), repeatability (045%14%), stability (19%26%), recovery (1001%1002%, 12%18%), limits of detection (0002 g·L-1), and limits of quantification (0005 g·L-1)The obtained datasets were processed by principal component analysis (PCA) and it showed that there was almost no difference in rhizoma of T tschonoskii and T kamtschaticum from different areas of China However, the 3 major compounds existed in rhizoma were different from those in fibrous root of T tschonoskii and T kamtschaticum
[Key words]HPLCCAD; Trillium tschonoskii and Trillium kamtschaticum; rhizoma and fibrous root; steroid saponin; determination; principal component analysis (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Trillium tschonoskii Maxim、吉林延齡草T kamtschaticum Pall,分布于吉林、西藏延齡草T govanianum Wall(僅見于西藏卡馬河下游)[1]。其中,延齡草T tschonoskii被《湖北省中藥材標準》收錄,藥材名頭頂一顆珠,又名芋兒七、佛手七、獅兒七等,藥用部位為根及根莖。其味甘、性平、有小毒,有延年益壽的功效,主治頭暈目眩、跌打損傷、神經衰弱、高血壓病和腦震蕩后遺癥等疾病,為土家族常用藥材[23]。本課題組在進行頭頂一顆珠的產地和市場資源調查時發現,目前河北安國、安徽亳州、四川成都和廣西玉林等藥材市場流通的頭頂一顆珠藥材均為來自吉林的吉林延齡草,安徽亳州市場的藥材也以黑龍江產為主,中藥材天地網誠實通平臺銷售的頭頂一顆珠也是吉林延齡草,表明頭頂一顆珠藥材的來源值得研究。……