甲醛

Two isoxazole intermediates containing 1,2,3triazolyl and carbonyl ,which can also be used as intermediates for synthesis of new heterocyclic compounds,have been synthesized.

以2-苯基-1，2，3-三唑-4-甲醛为原料，合成2种在异噁唑环上同时含有1，2，3-三唑基和羰基的新型化合物，它们可作为合成其他杂环化合物的中间体，其分子结构经IR，1HMR，MS谱确证

Results:There was no significant difference in mensuration between microwave disgestion-acetylacetone-formaldehyde spectrophotometry method and international standard Kjeldahl determination.

结果：微波消解-乙酰丙酮甲醛分光光度法与国标凯氏定氮法相比测定结果差异无显著性，该方法线性范围在5~100μg/10 m l，相关系数r=0.9997，检出限为0.546μg/10 m l，相对标准偏差为1.29%~2.21%，加标回收率

Nineteen spots were changed significantly after FA treatment.Thirteen proteins were identified by peptide mass fingerprinting or peptide sequence analysis,including putative nucleoside diphosphate kinase,elongation factor 1-gamma,triosephosphate isomerase,60S acidic ribosomal protein P0,heat shock protein 75 kDa,similar to heat shock 70kD protein binding protein,annexin I,hypothetical protein FLJ34423,microtubule-actin crosslinking factor 1,lamin B2,ATP synthase alpha chain,mitochondrial precursor,proteasome subunit alpha type 6.These identified proteins involved in energy metabolism,translation and RNA processing,protein folding,redox regulation,cell structure and cell signaling.

双向凝胶电泳结果显示，甲醛刺激后19个蛋白斑点发生变化，肽指纹图谱及肽序列标签鉴定了其中13个蛋白斑点，已鉴定的蛋白包括二磷酸核苷酸激酶、延长因子1-γ，磷酸丙糖异构酶、60S酸性核糖体蛋白P0、75kDa热休克蛋白、70kD热休克蛋白样结合蛋白、钙依靠磷脂结合蛋白I、假想蛋白FLJ34423、微管-肌动蛋白交叉连接因子1、核纤层蛋白B2、ATP合成酶α链、蛋白酶体α亚基6，这些蛋白功能涉及转录调节、蛋白折叠、信号传导、能量代谢、细胞骨架等各个方面。

Thirteen proteins were identified by peptide mass fingerprinting or peptide sequence analysis,including putative nucleoside diphosphate kinase,elongation factor 1-gamma,triosephosphate isomerase,60S acidic ribosomal protein P0,heat shock protein 75 kDa,similar to heat shock 70kD protein binding protein,annexin I,hypothetical protein FLJ34423,microtubule-actin crosslinking factor 1,lamin B2,ATP synthase alpha chain,mitochondrial precursor,proteasome subunit alpha type 6.These identified proteins involved in energy metabolism,translation and RNA processing,protein folding,redox regulation,cell structure and cell signaling.

双向凝胶电泳结果显示，甲醛刺激后19个蛋白斑点发生变化，肽指纹图谱及肽序列标签鉴定了其中13个蛋白斑点，已鉴定的蛋白包括二磷酸核苷酸激酶、延长因子1-γ，磷酸丙糖异构酶、60S酸性核糖体蛋白P0、75kDa热休克蛋白、70kD热休克蛋白样结合蛋白、钙依赖磷脂结合蛋白I、假想蛋白FLJ34423、微管-肌动蛋白交叉连接因子1、核纤层蛋白B2、ATP合成酶α链、蛋白酶体α亚基6，这些蛋白功能涉及转录调节、蛋白折叠、信号传导、能量代谢、细胞骨架等各个方面。

The changes and stability of reactive oxygen species and their bonding mechanisms of laccase-treated wood fibers, lignin and salts of lignosulphonate respectively were determined by ESR.

为开发新型环保、无毒、绿色的人造板产品，实现无胶胶合，解决游离甲醛污染问题奠定基础。

Schiff base derived from p-hydroxybenzaldehyde and p-aminobenzoic acid was prepared by solid-state reaction at supersonic speed airflow and low-heating. Lophophora shape Cu complexes was prepared from the Schiff base and copper acetate and through adding sodium dodecyl sulfate. The structural composition of complexes was confirmed by FTIR and elemental analysis.

利用超音速气流低热固相法合成了对羟基苯甲醛缩对氨基苯甲酸Schiff碱配体，再以该配体和乙酸铜为原料，通过添加十二烷基硫酸钠的方式制备出了晶形规整的仙人球型配合物，利用元素分析和红外等现代测试手段确定了配合物的结构组成。

In my search for a nail polish with less toxins I came across Loreal Jet Set and Loreal Steel Color which do not contain formaldehyde, toluene or dibutyl phthalate.

我对含少量毒素的指甲油做了一项调查，在调查中我偶然发现了欧莱雅速丽指甲油和欧莱雅时尚珍藏指甲油，它们不含甲醛，毒素或邻苯二甲酸二丁酯。

Cinnamic acid was synthesized from benzaldehyde and malonic acid by Knoevenagel reaction with pyridine as catalyst.

以苯甲醛和丙二酸为原料，吡啶为催化剂，利用 Knoevenagel 反应合成肉桂酸，从而降低了反应温度，提高了收率和产物纯度，简化了合成工艺。

The asymmetric synthesis of mandelic acid in the presence of a chiral phase transfer catalyst was also studied.

本文研究了由苯甲醛和卤仿在相转移催化条件下合成扁桃酸的工艺，探讨了反应条件，特别是相转移催化剂的种类对反应的影响。

Then, we studied the pathway of bacterial metabolism of Bpa and identified three kinds of metabolon of p-Hydroxy benzoic acid , p-Hydroxy benzaldehyde and p-Hydroxy acetophenone.

其次，利用现代分析化学技术研究Pseudonomas sp.W2对Bpa的代谢途径，发现对羟基苯甲酸、对羟基苯甲醛、对羟基苯乙酮为三种中间代谢产物。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。