www.日本精品,久久中文视频,中文字幕第一页在线播放,香蕉视频免费网站,老湿机一区午夜精品免费福利,91久久综合精品国产丝袜长腿,欧美日韩视频精品一区二区

氣相色譜法同時(shí)測(cè)定夜寒蘇藥材揮發(fā)油中α—蒎烯、β—蒎烯及芳樟醇的含量

發(fā)布時(shí)間:2019-08-30 來(lái)源: 幽默笑話 點(diǎn)擊:


  中圖分類號(hào) R927.2 文獻(xiàn)標(biāo)志碼 A 文章編號(hào) 1001-0408(2018)07-0933-04
  DOI 10.6039/j.issn.1001-0408.2018.07.17
  摘 要 目的:建立同時(shí)測(cè)定夜寒蘇藥材揮發(fā)油中α-蒎烯、β-蒎烯及芳樟醇含量的方法。方法:按照2015年版《中國(guó)藥典》(四部)水蒸氣蒸餾法進(jìn)行夜寒蘇揮發(fā)油的提取。采用氣相色譜法測(cè)定含量,采用HP-5毛細(xì)管色譜柱(30 m×0.032 mm×0.25 μm),氫火焰離子化檢測(cè)器(FID),載氣為氮?dú)猓M(jìn)樣口溫度為200 ℃,檢測(cè)器溫度為250 ℃,柱流量為0.8 mL/min,進(jìn)樣量為1 μL,分流比為40 ∶ 1,程序升溫。結(jié)果:α-蒎烯、β-蒎烯及芳樟醇的線性范圍分別為0.090 5~2.413 3 mg/mL(r=0.999 9)、0.098 3~2.620 0 mg/mL(r=0.999 9)、0.169 1~4.510 0 mg/mL(r=0.999 8),精密度、穩(wěn)定性(12 h)、重復(fù)性試驗(yàn)的RSD≤2.0%(n=6),平均加樣回收率分別為99.84%(RSD=0.49%,n=6)、100.24%(RSD=1.38%,n=6)、99.41%(RSD=1.67%,n=6)。23批黔產(chǎn)夜寒蘇樣品揮發(fā)油中α-蒎烯、β-蒎烯及芳樟醇含量分別在0.214 4~1.325 0、0.766 2~3.172 1、0.357 4~1.518 7 mg/g范圍內(nèi)。結(jié)論:本試驗(yàn)建立的方法快速、簡(jiǎn)便、準(zhǔn)確,可用于夜寒蘇藥材揮發(fā)油中α-蒎烯、β-蒎烯及芳樟醇含量的測(cè)定。
  關(guān)鍵詞 夜寒蘇;揮發(fā)油;α-蒎烯;β-蒎烯;芳樟醇;氣相色譜法
  ABSTRACT OBJECTIVE: To establish a method for simultaneous determination of α-pinene, β-pinene and linalool in volatile oil of Hedychium flavum. METHODS: The volatile oil was extracted from H. flavum according to steam distillation stated in Chinese Pharmacopoeia (2015 edition volume Ⅳ). GC method was adopted to determine the content. The determination was performed on HP-5 capillary chromatographic column(30 m×0.032 mm×0.25 μm)with hydrogen flame ion detector (FID), nitrogen gas as carrier gas, with injector temperature of 200 ℃, and detector temperature of 250 ℃, column flow rate of 0.8 mL/min, samples size of 1 μL and split ratio of 40 ∶ 1 by programmed temperature. RESULTS: The linear range of α-pinene, β-pinene and linalool were 0.090 5-2.413 3 mg/mL(r=0.999 9), 0.098 3-2.620 0 mg/mL (r=0.999 9), 0.169 1-4.510 0 mg/mL(r=0.999 8), respectively. RSDs of precision, stability (12 h), reproducibility tests were no more than 2.0% (n=6). The average recoveries were 99.84%(RSD=0.49%, n=6), 100.24%(RSD=1.38%, n=6), 99.41% (RSD=1.67%, n=6), respectively. The contents of α-pinene, β-pinene and linalool ranged 0.214 4-1.325 0, 0.766 2-3.172 1, 0.357 4-1.518 7 mg/g in volatile oil from 23 batches of H. flavum produced in Guizhou province. CONCLUSIONS: The method established in this experiment is rapid, simple and accurate. It can be used for the content determination of α-pinene, β-pinene and linalool in volatile oil from H. flavum.
  KEYWORDS Hedychium flavum; Volatile oil; α-pinene; β-pinene; Linalool; GC
  夜寒蘇為姜科植物黃姜花(Hedychium flavum Roxb.)的干燥塊根,性溫,味微甜,無(wú)毒,具有溫中散寒、解表發(fā)汗、祛風(fēng)除濕、補(bǔ)虛等功效[1-4]。夜寒蘇是貴州省苗族、布依族、侗族等同胞習(xí)用的藥物。在20世紀(jì)70年代,《貴州草藥》記載了夜寒蘇在貴州民間常將該藥用于治療寒濕白帶、體虛自汗、風(fēng)濕筋骨疼痛、消化不良、感冒、胃氣虛弱、頭痛身痛、跌打損傷等病癥[5]。楊秀澤、周漢華等[6-7]雖然已對(duì)夜寒蘇進(jìn)行了性狀及化學(xué)成分鑒別,但夜寒蘇化學(xué)成分的研究報(bào)道目前相對(duì)仍然不足,其主要成分是揮發(fā)油。目前夜寒蘇尚未被《中國(guó)藥典》《地方標(biāo)準(zhǔn)》收載,沒(méi)有明確的質(zhì)量標(biāo)準(zhǔn)。鑒于此,筆者依據(jù)《貴州省中藥材、民族藥材質(zhì)量標(biāo)準(zhǔn)》(2013年版)中規(guī)范和要求,采用氣相色譜法同時(shí)測(cè)定夜寒蘇藥材揮發(fā)油中α-蒎烯、β-蒎烯及芳樟醇含量的方法。

相關(guān)熱詞搜索:揮發(fā)油 測(cè)定 藥材 含量 氣相

版權(quán)所有 蒲公英文摘 www.newchangjing.com