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To further study the chemical constitutes of lipophilic active parts, we prepared Alc95% and Alc50% according to original literature. 20 compounds were isolated by using macroporous resin, silica gel, polyamide, Sephadex LH-20, Rp-18, preparative TLC and preparative HPLC chromato-graphy. The structures of them were elucidated by means of physical and chemical properties, modern spectroscopic analysis techniques—UV、IR、 EI/MS、ESI/MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC. They are nine anthraquinones: chrysophanol (95-1), physcion (95-2), emodin (95-5), aloemodin (95-7), rhein (50-1), sennoside A or B (50-6),ω-hydroxylemodin (95-10), chrysophanol-8-0-β-D-glucoside (95-12), aloemodin-ω-0-β-D-glucoside (95-13); three phenanthaquinones: tanshinone ⅡA (95-3), cryptotanshinone (95-6), tanshinone Ⅰ(95-4); one isoflavone: 7, 3'-dihydroxyl-5' methoxyisoflavone (95-14) and protocaechuic aldehyde (95-9), protocaechuic acid (95-11), astragaloside Ⅳ(50-4), amygdalin (50-5), 2, 3, 5, 4'-tetrahydroxylstilbene-2-0-β-D-glucoside (50-3),-catechin (50-2), cinnamic acid (95-8). Among them, 3'-dihydroxyl-5' methoxyisoflavone (95-14) is a new compound.

经过溶剂萃取、大孔吸附树脂富集、Sephadex LH-20精制、制备TLC及Semi-pre HPLC等手段从中分离了20个化合物，利用理化性质和波谱技术(UV、IR、EI／MS、ESI／MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC)相结合鉴定了它们的结构，分别为9种蒽醌类化合物：大黄酚，大黄素甲醚，大黄素，芦荟大黄素，大黄酸，番泻苷A或B，ω-羟基大黄素(ω-hydroxylemodin)，大黄酚-8-0-β-D-葡萄糖苷(chrysophanol-8-0-β-D-glucoside)，芦荟大黄素-ω-0-β-D-葡萄糖苷(aloemodin-ω-0-β-D-glucoside)；3种菲醌类化合物：丹参酮ⅡA(tanshinoneⅡA)，隐丹参酮，丹参酮Ⅰ(tanshinone Ⅰ)；1种异黄酮：7，3'-二羟基-5'-甲氧基异黄酮（7，3'-dihydroxy-5' methoxyisofla-vone）以及原儿茶醛，原儿茶酸，黄芪甲苷(astragaloside Ⅳ)，苦杏仁苷，2，3，5，4'-四羟基二苯乙烯-2-0-β-D-葡萄糖苷（2，3，5，4'-tetrahydroxylstilbene-2-O-β-D-g1ucoside），Z—儿茶素，桂皮酸。

A HILIC-MS/MS method was developed to determine melamine and its three derivatives, cyanuric acid, ammelide and ammeline in milk and milk powder. The milk sample was directly extracted by acetonitrile with the help of ultrasonic, and milk powder was resolved in water before extraction by acetonitrile.

建立了牛奶和奶粉中三聚氰胺及其3种衍生物（三聚氰酸、三聚氰酸一酰胺、三聚氰酸二酰胺）的亲水色谱－串联质谱检测方法(HILIC-MS/MS)。

Methods The GC-MS and GC were used to analyze the essential components of thirteen batches of Amomum villosum samples. The digitized standard of characteristic fingerprint of Amomum villosum essential oil was compared with the result of the samples detected by GC-MS and GC.

分别采用GC-MS和GC分析13批次阳春砂仁的主要成分，同时用已建立的阳春砂仁挥发油特征指纹图谱数字化信息与GC-MS、GC分析的样品进行相似度比对。

The best culture medium for root induction of Celastrus angulatus was that containing: 1/2 MS+MET3.0 mg.L-1+IBA 0.8 mg.L-1 or 1/2 MS+ MET3.0 mg.L-1 + IBA 0.5mg.L-1 for 12 days, in dark.

诱导苦皮藤组培苗生根的最佳因素配比为：1/2 MS+MET 3.0 mg.L-1 + IBA 0.8 mg.L-1和1/2 MS +MET 3.0 mg.L-1 + IBA0.5 mg.L-1，暗培养12 d效果最好。

The new PE file format mainly from the UNIX operating system common to COFF norms, and to ensure that the old version of MS-DOS and Windows operating systems compatible, PE file format also retained the MS-DOS in the head with the MZ .

新的PE文件格式主要来自于UNIX操作系统所通用的COFF规范，同时为了保证与旧版本MS-DOS及Windows操作系统的兼容，PE文件格式也保留了MS-DOS中那熟悉的MZ头部。

The results were showed that somatic embryos can be directly re-induced from cotyledonary, which was cultured on MS medium supplemented with ZTO.5-2 mg/L, BA 1mg/L and NAA 0.2mg/L, and the induction rate was over 80%.

结果表明，MS+ZT 0.5～2mg／L+BA 1mg／L+IAA 0.2mg／L培养基可直接诱导体胚发生，诱导率超过80％；MS+BA 2mg／L+NAA 0.2 mg／L或MS+TDZ 0.01 mg／L+NAA 0.2 mg／L培养基可直接分化不定芽，出芽诱导率分别为88％、100％。

A method for determination of Secoisolariciresonol diglucoside, secoisolariciresinol, enterolactone and enterodiol in serum by LC/MS/MS was established. In this method,β-Glucuronidase was used to hydrolyze the serum samples, the electrospray ionization sourse and negative ion MRM scan were employed.

本实验用β葡萄糖醛酸苷酶酶解血清样品，采用电喷雾离子源，负离子MRM扫描，建立了血清中司可异罗叶松甘油二酯、司可异罗叶松酯素、肠内二醇、肠内脂的IC/MS/MS分析方法。

AAⅠcan bind covalently to the exocyclic amino group of purine nucleotides to form AAⅠ-DNA adduct. LC/MS/MS is a practical tool to detect AAⅠ-DNA adduct.

AAⅠ活化后能与腺嘌呤形成AAⅠ-DNA加合物，LC/MS/MS技术能够决速力便准确地检测AAⅠ-DNA加合物。

The inducing rate was 94.5%; the optimal medium for the inducting rate of fasciculated shoot was MS+1.0mg/L6-BA+0.5mg/LNAA+stem section with bud, The inducing rate was 37.5%.

诱导愈伤组织的最佳组合为MS+1.0mg/L BA+1.0mg/L NAA+0.5mg/L 2，4-D+叶片，其诱导率为94.5%；诱导丛生芽的最佳组合为MS+1.0mg/L 6-BA+0.5mg/L NAA+带芽茎段，其诱导率为37.5%，增殖培养中，以MS+1.0mg/L BA+0.05mg/L NAA效果最好，增殖率为460%，当株高在2cm以上时，转入1/2MS+0.8mg/L IBA+0.2mg/L NAA生根培养基上，接种30d后，生根率可达90%，移栽成活率达92%。

Fragmentation behavior of xanthones by tandem mass spectrometry and analysis of the constituents in four crude extracts from Halenia Elliptica D. Don Firstly, in order to find the relationship between the structural characterization and the mass spectrometric behavior, eight xanthones isolated from Halenia Elliptica D. Don and nine semi-synthetic xanthones was systematically investigated by positive and negative ion ESI-MS〓 and APCI-MS〓.

〓酮类化合物的质谱裂解规律及椭圆叶花锚活性提取物中相关成分的分析研究首先，采用正负离子两种检测模式下的ESI-MS〓和APCI-MS〓方法对从药用植物椭圆叶花锚中提取分离出来的8个〓酮类单体和9个〓酮类合成物进行了详细、深入的质谱裂解规律研究，考察了化合物结构与质谱行为之间的相关性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。