色质

A high performance liquid chromatography-mass spectrometry analytical method for illicit drugs,apomorphine,sildenafil and alprostadil,in medicines for erectile dysfunction has been developed.

建立了高效液相色谱-电喷雾电离质谱法同时测定性保健品中违禁药物脱水吗啡、西地那非和前列地尔的分析方法。

The distribution of organic matter in sediments is heterogeneous. To study OM enrichment mechanism and interaction of organic matter with inorganic minerals in argillaceous sediments, we employed size grading, microscope, X-ray diffraction and gas chromatography to obtain information on OM and minerals.

在泥质沉积物颗粒分级的基础上，用显微镜检测、XRD和色谱分析等手段获取有机质和无机矿物的特征，探讨了二者间的相互关系以及有机质富集的差异性。

This paper describes a method for the determination of polycyclic aromatic hydrocarbons in soil of green food producing area .

对绿色食品产地土壤中多环芳烃的气相色谱质谱联用分析法进行了研究。

N-succinimidyl 5---3-pyridinecarboxylate, a useful linker for labeling proteins with astatine and iodine radioisotopes, is synthesized in three steps with 5- bromonicotinic acid as a starting material, and is characterized by nuclear magnetic resonance, mass spectrometer and high performance liquid chromatography.

以5-溴烟酸为起始物，通过3步主要反应合成了一种适用于蛋白质放射性砹标记的偶联剂——5--3-吡啶甲酸 N-琥珀酰亚胺酯，并用核磁共振、质谱、高效液相色谱等进行了表征。

Objective To establish a method for determination of barbiturate drugs in blood.

目的建立血液中巴比妥类药物液相色谱-串联质谱检测方法。

A method for determination of basic nitrogen-containing compounds in mainstream smoke was established. In the condition of basic substance barium hydroxide powder and extractant chloroform, 18 basic nitrogen-containing compounds were analyzed by gas chromatography-selective ion monitored-mass spectrometry, such as pyridine, 2-methylpyridine, 2-methylpyrazine, quinoline and indole, etc.

在氢氧化钡碱性环境中，以三氯甲烷为萃取剂，采用气相色谱－选择离子监测－质谱法测定吡啶、2-甲基吡啶、2-甲基吡嗪、喹啉、吲哚等18种碱性含氮化合物。

Benzene series in surface water was detected by purge and trap gas chromatography - mass spectrometry.

采用吹扫捕集和气相色谱-质谱联用对地表水中苯系物进行检测。

Then, the anthocyanins of blood orange were identified by HPLC-ESIIMS analysis.

同时，利用高效液相色谱－电喷雾质谱联用(HPLC-ESI/MS)对血橙花色苷进行定性分析。

In addition, the expression of VEGF and MMP-2 were analyzed by western blot.

MTT比色法检测细胞对细胞外基质的粘附能力；5。

A method was established for the determination of naphthalene in quick-freezen broad bean by GC-MS.

建立了一种测定速冻蚕豆中萘残留量的气相色谱/质谱方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐