微孔草新品系种子油中脂肪酸成分的比较

以气相色谱法(GC)测定了微孔草种子油中脂肪酸的含量。发现微孔草种子油中多不饱和脂肪酸含量在84.49%—85.73%之间;其中α-亚麻酸含量在13.74%—16.66%之间,微孔草新品系种子油中α亚麻酸含量均大于北微1号;γ-亚麻酸含量在6.46%—7.64%之间,微孔草新品系种子油中γ-亚麻酸含量均小于北微1号。     

MAKENG IRON DEPOSIT——A SUBMARINE VOLCANIC HYDROTHERMAL- SEDIMENTARY ORE

Based on the study of the geologic setting of the Makeng iron deposit, its mode of occurrence, types of the primary ore, and its texture and structure, this paper classifies the deposit as belonging to syngenetic sedimentary origin and suggests that the skarn there is but a postmineral hydrothermal superposition product. In consideration of its geothermomerry, ore composition, the behavior of Mn and Fe in the ore-forming process and other geochemical features, the Makeng iron deposit is demonstrated to be a submarine volcanic hydrothermal-sedimentary-type ore. Study on stable isotope proves that the ore-forming thermal fluid is a mixture of "magmatic water" and seawater.     

马坑铁矿——一个海相火山热液-沉积型矿床

本文通过对马坑铁矿床产出地质环境、产状特征、原生矿石类型及其结构构造的研究,阐明了该矿床属同生沉积成因,矽卡岩只是成矿后的热液迭加。并根据地质测温、矿石物质组分及成矿过程锰、铁分离等地球化学特征,论证了马坑铁矿为火山热液-沉积矿床。稳定同位素研究证明了成矿热流体为“岩浆水”与海水的混合。     

DLLME-HPLC测定锡金微孔草内源激素脱落酸的含量

建立分散液液微萃取-高效液相色谱法测定锡金微孔草内源激素脱落酸含量的分析方法.分散液液微萃取条件为:100μL萃取剂(氯仿),1.0mL分散剂(乙酸乙酯),pH 3.0;方法的线性范围:0.0285-1.14μg/mL,r=0.9995,检出限0.0008μg/mL (S/N=3);锡金微孔草中脱落酸的加标回收率为90.99％-93.12％,RSD为0.99％-1.57％ (n=3).本方法具有检出限低、操作简便、环境友好等优点,适于检测微孔草中痕量的脱落酸.     

藏药迷果芹脂溶性成分分析

采用气相色谱-质谱（GC-MS）联用技术对藏药迷果芹的脂溶性成分进行分析.从藏药迷果芹石油醚萃取物中分离鉴定出26种化合物,占其总量的98.77％.在已鉴定的化学成分中,含量较高的化学成分依次为亚油酸（35.90％）、芹菜脑（23.98％）、棕榈酸（11.41％）、亚油酸乙酯（4.08％）、亚油酸甲酯（4.06％）、β-谷甾醇（4.40％）.本研究为开发迷果芹资源提供了科学依据.