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The fingerprint of Picrorhiza scrophulariiflora Pennell by HPLC-DAD-MS was used to establish a sensitive and specific HPLC method for quality control.

利用HPLC-DAD-MS法，研究胡黄连的高效液相色谱指纹图谱，为科学评价及有效控制其质量提供可靠方法。

The fingerprints of Picrorhiza scrophulariiflora Pennell from different places were analyzed and the same peaks were identified by HPLC/MS.

对不同产地的胡黄连药材进行指纹图语分析，通过HPLC-MS技术指认指纹图谱共有模式中共有峰的归属。

Studied on micropropagation of Pistacia vera showed: the suitable medium that will support excellent growth of Pistacia vera was the Murashige and Skoog medium supplemented with 2. 0 mg. L〓 6-BA and 0.05mg. L〓 NAA, but the frequency of shoot-tip necrosis which reached to 36. 4 percent in 35 days is high. Instead MS medium with Driver-Kuniyuki-Walnut medium, the frequency of shoot-tip necrosis were declined from 36. 4 percent to 9. 3 percent.

组织培养试验发现：以MS为基本培养基，添加2.0mg.L〓 6-BA和0.05mg.L〓NAA可增大繁殖系数和加速生长，但茎尖干枯率高，培养至35天时干枯率达36.4％；以DKW培养基为基本培养基进行增殖培养，35天时干枯率仅为9.3％，茎尖干枯率降低了27.1％。

The nutritional components of the whole dry pitaya flower were analyzed by ICP-MS,spectrophotometric method,chemical analysis method and gravimetric method.

采用ICP-MS、分光光度法、化学分析法和重量法对火龙果全花的营养成分进行了分析，结果表明，每100 g火龙果花干制品中水分、蛋白质、粗纤维、粗脂肪、总糖、灰分的含量分别为：7.12、11.80、10.01、1.15、23.61、7.43 g；火龙果花中钾的含量相当高，为13 772.07 mg/kg；镁、钙和磷元素的含量丰富，分别达到：1 788.34、1 745.44、307.90 mg/kg；铁、锰、锌等必需微量元素也较丰富。

The experiment result showed: when the medium was MS supplemented with 2,4-D2.0mg/L, BAl.0mg/L and NAA0.5mg/L, the callus induction rate of the cotyledon was 87.9%, the callus induction rate of the plumular axis was 82.9%, and the callus induction rate of the terminal bud was 6.7%.

实验结果表明在MS附加2，4-D2.0mg/L、BA1.0mg/L、NAA0.5mg/L的培养基上，子叶愈伤组织的诱导率为87.9％、胚轴的诱导率为82.9％、顶芽的诱导率为6.7％。

By GC-MS analysis, the liquefied products contained oligomers of polyhydric alcohols, carboxylic acids and their esters because of oxidation and esterification of polyhydric alcohols and the decomposed cornstalk components.

GC-MS分析表明，液化产物中主要含有多元醇的低聚合体，以及多元醇和玉米秸秆降解产物的氧化和酯化反应产生的羧酸及其酯。

Eight kinds of 2-benzimidazolylalkylene derivatives in polyphosphoric acidhave been synthesized by multi-power bands microwave irradiation technique,starting from corresponding cinnamic acid compounds and they were characterized by~1H NMR,(~13C NMR and MS respectively.

以8种肉桂酸衍生物和邻苯二胺为原料，在多聚磷酸中，采用分段式微波辐射方法合成了8种2-苯并咪唑基烯烃衍生物，并通过1H NMR、13C NMR和MS进行了表征。

Two compounds have been isolated from hard coral Porites Compressa Dana,their structures were determined by IR,MS, HNMR, 13CNMR analysis.The two compounds are: batyl alcohol,(2) N-[l--2-hydroxyl--3,7-heptadecadienal]- h exadecanamide.

从采自西沙群岛的扁缩滨珊瑚中的石油醚部分分离出两个化合物，经IR、MS、~1HNMR、~(13)CNMR等波谱方法鉴定，其结构分别为(1)鲨肝醇，(2)N-1-羟基甲基-2-羟基--3，7-十七碳二烯基十六酸酰胺。

The method is used to preconcentrate Li and separate matrix in geological samples, and contents of Li in those samples determined by ID-ICP-MS, giving precise of 3% and good accurate results.

分离后 ，用 ICP-MS测定锂同位素的比值，具有较高的测量精密度。用同位素稀释电感耦合等离子体质谱测定地质样品中微量锂，结果相对标准偏差 sr%。方法检出限低，精密度高，分析速度快，是测定锂的较理想方法。

A new method that formaldehyde in air is collected in canister, preconcentrated through 3-stage traps and analyzed by GC/MS is introduced in this paper. Characters such as detection limit, veracity, stability and region of linear response are investigated.

本文研究了采用SUMMA罐采样，三级冷阱预浓缩，GC/MS分析室内空气中甲醛的方法，并考察了该方法的检出下限、准确度、精密度、线性响应范围等方法特性。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。