柱前衍生法,Pre-column derivation
1)Pre-column derivation柱前衍生法
英文短句/例句

1.Determination of Taurine in Food by Pre-column HPLC with Sulfonyl Chloride;应用单磺酰氯柱前衍生法测定食品中的牛磺酸
2.A study on the derivatising condition of 4-methylimidazole using dansyl chloride as pre-column derivatising agent柱前衍生法测定4-甲基咪唑条件的研究
3.Determination of Glucosamine Hydrochloride by Pre-column Derivatization and High Performance Liquid Chromatography氨基葡萄糖盐酸盐含量的HPLC柱前衍生法测定
4.Determination of Cyclamate in Preserved Fruits by High-performance Liquid Chromatography Coupled with Pre-column Derivatization高效液相色谱柱前衍生法测定蜜饯中的甜蜜素
5.Content determination of carnosion by pre-column derivatization with PR-HPLC柱前衍生化RP-HPLC法测定肌肽的含量
6.Study on the Precolumn Derivatization Method for the Determination of Oleanolic Acid柱前衍生化HPLC法测定齐墩果酸含量的研究
7.Determination of lipid emulsion prostaglandin E_1 by HPLC with post-column derivatizationHPLC柱后衍生化法测定前列腺素E_1脂肪乳的含量
8.Determination of Monoethanolamine by HPLC With Pre-column Derivatization柱前衍生高效液相色谱法测定一乙醇胺含量
9.Pre-column derivation RP-HPLC determination of 1,6-Hexamethylene diisocyanate柱前衍生化RP-HPLC法测定六亚甲基二异氰酸酯
10.Studies of Kanamycin sulfate determination method by HPLC with pre-column derivatization柱前衍生化HPLC检测硫酸卡那霉素的方法研究
11.Analysis of Monosaccharide Compositions in Heterosmilax japonica Polysaccharide by Precolumn Derivation HPLC柱前衍生HPLC法分析白土茯苓多糖中单糖的组成
12.Determination of enantiomeric purity of(R)-N-acetylthiazolidine-2-thione-4-carboxylic acid by high performance liquid chromatography with pre-column derivatization柱前衍生高效液相色谱法测定NTCA的光学纯度
13.Determination of Intermediate for Iodixanol Using Reversed-phase High Performance Liquid Chromatography with Pre-column Derivatization碘克沙醇重要中间体的柱前衍生化RP-HPLC分析法
14.Determination of free and hydrolyzed formaldehyde in textile by pre-column derivation/HPLC method柱前衍生/HPLC法测定纺织品中的游离水解甲醛
15.Analysis of monosaccharide composition in Radix Glehniace by precolumn derivatization HPLC柱前衍生化HPLC法分析沙参多糖中单糖组成
16.Determination of Alliin in Garlic Using Precolumn Derivatization with AQC Followed by Reversed-phase High-performance Liquid ChromatographyAQC柱前衍生化RP-HPLC法测定大蒜中蒜氨酸含量
17.Determination of Alliin Content in Garlic by RT-HPLC with DNFBDNFB柱前衍生RP-HPLC法测定大蒜中蒜氨酸含量
18.Enantiomeric Purity Determination of Chiral Drugs by CSPs Combining with Pre-Column Derivation;柱前衍生结合手性固定相HPLC法测定手性药物的光学纯度
相关短句/例句

pre-column derivatizing method柱前衍生化法
3)Pre-column derivatization柱前衍生
1.Determination of Tauine by internal standard HPLC with pre-column derivatization;柱前衍生高效液相色谱内标法检测牛磺酸的研究
2.Determination of Cyclamate in Children Foods by HPLC with Pre-Column Derivatization;柱前衍生液相色谱测定儿童食品中甜蜜素
3.Process diagnosis for reduction reaction of 2-aminoethansulfonic processing by HPLC pre-column derivatization;HPLC柱前衍生法2-氨基乙磺酸制备工艺还原阶段流程诊断
4)Precolumn derivatization柱前衍生
1.Determination of amino acids in food by High Performance Liquid Chromatography with precolumn derivatization;柱前衍生高效液相色谱法测定食品中的氨基酸含量
2.Determination of fenfluramine in slimming drug by HPLC with precolumn derivatization using 2,4-dinitrofluorobenzene as derivative reagent;硝基氟苯柱前衍生HPLC测定减肥药中芬氟拉明
3.Determination of sodium valproate in serum by HPLC after precolumn derivatization;改进的柱前衍生高效液相色谱法测定人血中丙戊酸钠
5)derivatization柱前衍生
1.The separation with quantitative analytical methodof taurine in Pinctada martensii was studied by high performance liquid chromatographic (HPLC) after derivatization with opthaldialdehyde.应用邻苯二甲醛柱前衍生高效液相色谱法,测定了马氏珠母贝中牛磺酸,结果表明:采用邻苯二甲醛为柱前衍生剂,与原料中的牛磺酸发生衍生化反应后,以甲醇-乙酸钠溶液(体积比40︰60)为流动相,使用ODSC18分离柱,FLD检测器(EX=338nm,EM=444nm)等色谱条件下检测,牛磺酸的线性范围为2。
2.A novel fluorescence reagent 1,2-benzo-3,4-dihydrocarbazole-9-ethyl-toluene-4-sulfonate (BDBETS) was synthesized, and using which as pre-column derivatization reagent ,19 fatty acids were derivatized optimally.合成了新型荧光试剂 1,2_苯并_3,4_二氢咔唑_9_乙基对甲苯磺酸酯 ,以此作为柱前衍生化试剂对19种游离脂肪酸 (FFA)进行了优化衍生 。
3.A new method for the separation of amino acids by capillary electrophores is used and 9_(2_carbazole)ethyl chloroformate(CEOC) as derivatization is developed.采用新合成的荧光衍生试剂咔唑_9_乙基氯甲酸酯(CEOC)作为柱前衍生试剂,利用毛细管电泳仪对游离氨基酸进行了分离,研究了该试剂用于氨基酸分离的几个关键的条件,从而实现了对14种氨基酸的基线分离。
6)pre-column derivation柱前衍生
1.Determination of gamma-aminobutyric acid and seventeen free amino acids in Pinus massoniana Needles by reversed-phase high performance liquid chromatography with pre-column derivation;柱前衍生反相高效液相色谱法测定马尾松(Pinus massoniana)针叶中γ-氨基丁酸和17种游离氨基酸
2.Chiral separation of amino acid by CSPs combining pre-column derivation柱前衍生结合手性固定相高效液相色谱法拆分2种氨基酸对映体
3.That taurine in milk powder was determined by HPLC using pre-column derivation by 2,4-dinitrofluorobenzene (DNFB).建立了用 2 ,4 二硝基氟苯作为柱前衍生试剂 ,采用高效液相色谱仪 ,紫外检测器成功检测出乳粉中牛磺酸含量的方法。
延伸阅读

柱前衍生化法分子式:CAS号:性质:被测组分先通过衍生化反应,转化为衍生化产物,然后再经过色谱柱进行分离。高效液相色谱法中柱前衍生的目的是:通过衍生化反应,使原来不能直接被检测的组分转化为能被所用检测器检测的物质;使被测组分与衍生化试剂有选择地参加反应,而与样品中的其他组分分离;改变被测组分在色谱柱上的出峰次序,使之更有利于分离。柱前衍生的优点是可以不必严格限制衍生化反应条件,可以允许较长的反应时间及使用各种形式的反应器。其缺点是当一个复杂组分样品经过衍生化反应后,有可能产生多种衍生化产物,给色谱分离带来困难。