理论优化表明，三个吡啶甲酸分子都具有平面的平衡构型。
Theoretical optimizations show that the equilibrium geometries of the three picolinic acid molecules are planar.
本文用苦味酸溴代十六烷基吡啶离子对作为电活性物质，以邻苯二甲酸二辛酯为增塑剂，研制成以PVC为基质膜的苦味酸离子选择电极。
In the paper, a PVC membrane picric acid anion selective electrode is developed using Bromhexadecyl pyridine picrate ion pair as the active component and dioctyl phthalate as the plasticizer.
二套基组的理论优化表明，三个吡啶甲酸分子都具有平面的平衡构型。
Theoretical optimizations with both basis sets show that the equilibrium geometries of the three picolinic acid molecules are completely planar.
双功能有机配体2,4,6 -吡啶三甲酸、其水溶性稀土荧光标记材料及其制备方法。
Bifunctional organic ligand 2, 4, 6-pyridine tricarboxylic acid, water-soluble rare-earth fluorescence labeling material and preparation method thereof.
目的建立保健食品中吡啶甲酸铬含量的测定方法，验证吡啶甲酸铬的稳定性。
Objective To develop a method for determining the content of chromium picolinate in sanitarian food and to validate its stability.
然后脱硝基得到4-羟基吡啶-N-氧化合物，最后用锌和甲酸铵还原4-羟基吡啶-N-氧化合物得到产物4-羟基吡啶。
At last, the target product 4-Hydroxypyridine was gaven by reduction of 4-Hydroxypyridine N-oxide using zinc and Ammonium Formate as catalysts.
建立了以磷酸氢二钾-磷酸盐缓冲溶液中添加甲醇为流动相，以反相高效液相色谱同时测定吡啶、2-氨基吡啶、2-甲基吡啶和2-吡啶甲酸的新方法。
A new reversed phase high performance liquid chromatography method is described for the simultaneous determination of pyridine, 2-aminopyridine, 2-methylpyridine and 2-pyridinecarboxylic acid.
为探讨超量添加吡啶甲酸铬对猪细胞DNA的影响，共进行了两个试验。
Two experiments were conducted in this study to investigate effects of basic diet added excess chromium picolinate on DNA of piglet cell.
对氯苯甲酸-2，4，6-三吡啶基三嗪稀土配合物的合成、表征及发光性能。
Synthesis, Characterization and Fluorescence Properties of Rare Earth with p-Chloro-benzoic Acid and 2,4,6-Tris-(2-pyridyl)-s-triazine.
合成了稀土铕、镧与吡啶-2，6二甲酸形成的二元配合物及铕与邻菲罗啉和吡啶-2，6二甲酸形成的三元配合物。
The binary and ternary solid complexes of rare earth Eu3+ and La3+ with pyridine-2 , 6-dicarboxylic acid(H2DPC) and 1, 10-phenanthroline are synthesized.
喜树碱与呋喃甲酸、吡啶甲酸、烟酸和异烟酸通过酯键进行偶联。
Camptothecin was coupled with 2-furonic acid, pyridinecarboxylic acid, niacin and isonicotinic acid through ester bond.
在含硫酸铜的酸性水溶液中，用氯酸钠作氧化剂，氧化喹啉得到2，3-吡啶二甲酸，产率为56·4%；
In the acidic aqueous solution of copper sulfate, pyridine-2,3-dicarboxylic acid was synthesized by oxidizing quinoline with sodium chlorate, and the yield of the product could reach 56.4%.
在含硫酸铜的酸性水溶液中，用氯酸钠作氧化剂，氧化喹啉得到2，3-吡啶二甲酸，产率为56·4%；
In the acidic aqueous solution of copper sulfate, pyridine-2,3-dicarboxylic acid was synthesized by oxidizing quinoline with sodium chlorate, and the yield of the product could reach 56.4%.
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