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The content of free acetic acid in cigarette smoke condensates was determined by GC-MS with isopropyl alcohol as the solvent and nonanol as the internal standard. RSD of the method was less than % and the average recovery of acetic acid was 99.9%.
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以异丙醇为溶剂,壬醇为内标,采用气相色谱-质谱法分析了卷烟烟气总粒相物中的游离乙酸,乙酸测定结果的相对标准偏差小于%,平均回收率为99.9%。 |
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The content of lysine can reach 7.7mg/00ml, VA . IU/00g, and the total contents of VE, VB, VB reach 0.99mg/00g.
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维生素A含量为.IU/00g,VE、VB、VB总量为0.99mg/00g; |
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The content of soybean isoflavones aglycon was significantly increased.
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论 豆浆中的大豆异黄酮糖甙在双歧杆菌的 β葡萄糖苷酶作用下水解为异黄酮甙元 ,异常酮甙元的浓度显著增加。 |
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The content of the neutral aroma components in the upper leaves(BF) was the highest,followed by cutters(C F)and the lugs(XF).
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两地烟叶部位间上部叶(BF)中性致香物质含量最高,中部叶(C F)次之,下部叶(XF)最低。 |
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The content of the sialic acid in secretory endometrium was much lower than in the proliferous(P< 0.0) .
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果表明:分泌期的GLs总含量低于增生期(P<0.0); |
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The content of thiamin of Ficus vasculosa reaches 9.8 mg ·kg~(-) in dry weight.
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突脉榕嫩枝叶中VB含量达9.8mg. kg-(干重)。 |
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The content of this thesis was supplying with the key problem of Science and Technology to tackle of The th : Research and demonstrate of constructive technique on the important type of water resources protection in the headwater of citied (00BA0B0-0).
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本文所论述的内容是在国家“十五”科技(攻关)计划课题：“都市重要水源区水源涵养型植被建设技术研究与示范”(00BA080-0)的资助下完成的。 |
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The content of triptolide in Lei Gong Teng tablets was determined using liquid-solid extraction-HPLC. This method is sensitive、accurate and reproducible,its recovery is 98 8%.
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采用液固萃取—高效液相色谱法测定雷公藤片中雷公藤内酯醇的含量，方法灵敏、准确，重现性好，回收率为98．8％。 |
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The content of α-amanitin,β-amanitin and phalloidin in the fruit bodies of 7 species of Amanita from the Changbai Mountains in northeastern China was analyzed by means of high performance liquid chromatography.
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利用HPLC法对长白山地区分布的7种鹅膏属真菌成熟子实体中的α鹅膏毒肽(αamanitin)、β鹅膏毒肽(βamanitin)和鬼笔毒肽(phalloidin)的含量进行了测定。 |
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The contents of chlorophlly in trisome were the highest, the diploid was the lowest, but for the chlorophlly a/b, the diploid was the highest.
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叶绿素含量则为三体>单体>双体,但是叶绿素a/b比值则为双体最大。 |
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The contents of cyanin,sugar and starch reduced with the intensity lowering.
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叶片中花色素苷、糖以及淀粉含量随着光照强度降低而减少。 |
