查询词典 chromatographic

ObjectiveTo establish a high performance liquid chromatographic method for the determination of taurine in beverages.Methods:After derivatization with FMOC,tarine in beverages was separated and quantitied by HPLC.

牛磺酸(2-氨基乙磺酸)是广泛存在于动物和人体内的一种含硫氨基酸，具有保护心血管系统、促进脂肪乳化、改善视功能和抗氧化等生理功能[1]，在预防医学领域具有重要的应用前景。

Methods: We use head-space GC method, chromatographic conditions are carried out as following: the flexibility quartzose capillary column, the temperature of column is 90℃, injection temperature is 150℃, equivalence temperature is 80℃ and time is 30 mins, quantization imp temperature is 90℃, transfer line temperature is l00℃.

采用顶空法，在极性弹性石英毛细柱上进行各组分分离，效果良好。柱温：90℃，进样口温度150℃，顶空瓶平衡温度80℃，平衡时间30分钟，定量环温度90℃，传输线温度100℃。

Methods Compounds were isolated and purified by various column chromatographic techniques and their structures were elucidated on the basis of spectral analysis (IR, ESIMS, 1HNMR, 13CNMR). The inhibitory activity against the proliferation of HL60, REH and Raji cell lines was determined by using MTT assay.

用色谱方法分离栀子中化学成分，用波谱技术(IR，ESIMS，1HNMR，13CNMR)进行结构鉴定，用四唑盐比色法测定化合物对白血病细胞（HL60人早幼粒细胞白血病、REH人急性淋巴细胞白血病、 Raji淋巴瘤）增殖的影响。

HPLC method could test Sennoside and Rhaponticin in the same chromatographic conditions,and could not only identify the true or false Rhubarb and Processed Rhubarb,but also examine th...

采用高效液相色谱法对番泻苷和土大黄苷在同一色谱条件下测定，不仅能鉴别正伪品大黄药材及饮片，还能检出掺伪土大黄的大黄药材及饮片。

Keywords : solubility parameters apparent solubility parameters chromatographic fingerprint total quantum geometrical average retention time aloe-emodin rheic acid archen physcione HPLC compatibility rule reform t of the single flavor TCMM.

cm-3/2。结论：HPLC指纹图谱总量几何平均保留时间法能同时测定多个成分及总量的表观溶度参数，这对研究中药的配伍溶解规律，单味中药剂改工艺研究奠定理论基础。

At present , there are two major categaries , which including chromatographic and spectro2 scopic methods.

目前，常用的方法包括色谱法和光谱法，对各类方法及其优缺点进行了论述。

Photolysis of paramethyl benzyl manganese pentacarbonyl5Mn-p-CH2C6H4CH3 (4a)and paramethoxy benzyl manganese pentacarbonyl5Mn-p-CH2C6H4OCH3(4b) with 1-2 equivalents of R3SiH in C6H6 or C6D6 at 5℃ yields the silyl manganese pentacarbonyls5MnSiR3 [SiR3 = SiMe2Ph (1b), SiMePh2 (1c), SiPh3 (1d), SiHPh2 (1e), SiEt3 (1f), SiMe2tBu(1g), and SiMe2Et (1h) ] in moderate to high yields after chromatographic purification.

对甲基卞基五羰基锰5Mn-p-CH2C6H4CH3（4a）或对甲氧基五羰基锰5Mn-p-CH2C6H4OCH3（4b）与1-2当量R3SiH的C6H6 或C6D6溶液在5oC光解，经色谱纯化后得到中等或高收率硅烷基五羰基锰5MnSiR3［SiR3 = SiMe2Ph（1b），SiMePh2（1c），SiPh3（1d），SiHPh2（1e），SiEt3（1f），SiMe2tBu（1g），和SiMe2Et（1h）］。

Methods: Uses the toluidine to 20 example syphilitic blood serum red not to heat up the syphilitic spirochaeta bloopd congeals experiments, the enzyme association immunity adsorption experiments, colloid gold immunity chromatographic analysis law3 plants the different serology method to carry on the contrast examination.

因此，对梅毒的早期诊断及正确地评价治疗疗效，为临床提供准确、及时的依据显得尤为重要。血清学试验是目前国内诊断梅毒的主要方法，其检测方法较多，对每一种方法在梅毒的诊断、治疗和预后等方面的应用价值及相互间关系作比较分析、确定有价值的检测方法，很有必要。

Results: The manufactured PS-DES as well as the sulphonated phases were respectively packed into capillaries,and the columns thus prepared were tested for their chromatographic characteristics. It was found that the PS-DES phase showed reversed-phase characteristics.

结果： 将所制得的PS-DES固定相以及磺化的固定相各自填充到毛细管内，考察这些毛细管电色谱柱的色谱性能，发现前者表现出反相固定相的性质。

In view of the superstandard total hydrocarbon problem found in the oil chromatographic analysis for No.

广东粤电流溪河发电有限责任公司1号主变压器通过油色谱分析发现总烃超标，吊罩检查找到引线绝缘击穿故障点，采用磷铜补焊的方法修复烧断引线，及时消除了重大安全隐患。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。