ninhydrin

简明释义

英[nɪnˈhaɪdrɪn]美[nɪnˈhaɪdrɪn]

n. （水合）[有化] 茚三酮

英英释义

单词用法

同义词

反义词

例句

1.Its ninhydrin reaction was negative, but after acid hydrolysis, its ninhydrin reaction and biuret reaction were positive.

茚三酮反应呈阴性，用酸水解后茚三酮反应和双缩脲反应呈阳性。

2.Methods: color reaction of free amino acids with ninhydrin was adopted, since, in certain extent, the color depth is correlated with the amino acid content.

方法：采用氨基酸的游离氨基与水合茚三酮产生显色反应，在一定范围内，其颜色的深浅与氨基酸的含量成正比。

3.Analysis by thin layer chromatography, original spot hydrolyzed-ninhydrin color, infrared spectrum indicated that the biosurfactant of metabolite after culturing of the strain was lipopeptide.

薄层色谱与原位水解显色和红外光谱分析表明，培养后菌株代谢产生的生物表面活性为脂肽。

4.Analysis by thin layer chromatography, original spot hydrolyzed-ninhydrin color, infrared spectrum indicated that the biosurfactant of metabolite after culturing of the strain was lipopeptide.

薄层色谱与原位水解显色和红外光谱分析表明，培养后菌株代谢产生的生物表面活性为脂肽。

5.Methods Alendronate sodium was determinated by colorimetry and ninhydrin ethanolic solution was used as chromogenic agent in alakaline condition and detection wavelength was at 568.

方法在碱性条件下，以（水合）茚三酮乙醇溶液为显色剂，采用比色法测定，检测波长为568。

6.The methods of ninhydrin and molybdenum blue, and bi directional soil section slicing were used.

利用茚三酮法、钼蓝法及土壤双向切片法。

7.It was conducted to determine the lysine content of harvested grain in 100 different varieties or lines in wheat by ninhydrin colorimetry method.

利用茚三酮比色法测定100个不同类型小麦籽粒的赖氨酸含量。

8.The proof of grafting was established by IR spectra, ninhydrin test, nitrogen estimation and other analytical methods.

并用红外光谱、水合茚三酮反应、含氮量分析等方法验证接枝反应的进行。

9.The surface amino group was transferred to the aldehyde group after it reacted with ninhydrin. The surface aldehyde group was confirmed by the mirror reaction.

表面的伯胺基在与茚三酮反应后转化为醛基，通过银镜反应证明了醛基的存在。

10.The artist applied ninhydrin to enhance the colors in her painting.

艺术家使用显指剂增强她画作中的颜色。

11.During the investigation, ninhydrin helped uncover vital evidence.

在调查过程中，显指剂帮助揭示了重要证据。

12.The forensic team used ninhydrin to reveal fingerprints on the paper.

法医团队使用显指剂在纸上显现指纹。

13.In the lab, we tested the solution with ninhydrin to analyze amino acids.

在实验室，我们用显指剂测试溶液以分析氨基酸。

14.Chemists often use ninhydrin in chromatography for detecting substances.

化学家们常在色谱分析中使用显指剂来检测物质。

作文

Ninhydrin is a chemical compound that plays a crucial role in various fields, particularly in forensic science and biochemistry. It is widely recognized for its ability to react with amino acids and proteins, producing a deep blue or purple color known as Ruhemann's purple. This property makes ninhydrin an invaluable tool in detecting fingerprints on porous surfaces, such as paper or cardboard, where traditional methods may fail. The reaction occurs when ninhydrin interacts with the amino acids present in the sweat left behind by fingers, allowing forensic experts to visualize and analyze fingerprints that are otherwise invisible to the naked eye.In the realm of biochemistry, ninhydrin serves as a reagent for amino acid analysis. When proteins or peptides are hydrolyzed into their constituent amino acids, ninhydrin can be employed to quantify these amino acids through colorimetric methods. The intensity of the color produced is proportional to the concentration of amino acids present in the sample, making it a valuable technique in protein research and nutritional studies.The mechanism behind the color change involves the formation of a complex between ninhydrin and the amino group of amino acids. During this reaction, water is released, and the resulting compound undergoes further transformations, ultimately yielding the characteristic purple color. This reaction is not only limited to amino acids; ninhydrin can also react with primary amines and some secondary amines, broadening its applications in analytical chemistry.Despite its numerous applications, handling ninhydrin requires caution due to its potential toxicity and the need for proper laboratory safety protocols. It is essential for researchers and forensic scientists to wear appropriate personal protective equipment (PPE) when working with this compound to avoid any adverse health effects.In conclusion, ninhydrin is a versatile and powerful chemical compound that has made significant contributions to both forensic science and biochemistry. Its ability to reveal hidden fingerprints and facilitate amino acid analysis underscores its importance in these fields. As research continues to advance, the applications of ninhydrin may expand even further, potentially leading to new discoveries and innovations. Understanding the properties and uses of ninhydrin not only enhances our knowledge of chemical reactions but also emphasizes the interconnectedness of chemistry with various scientific disciplines. The continued exploration of ninhydrin and its derivatives may pave the way for new methodologies in crime scene investigation and biochemical analysis, showcasing the enduring relevance of this remarkable compound.

萘氢醌是一种化学化合物，在多个领域，特别是在法医学和生物化学中发挥着至关重要的作用。它因其与氨基酸和蛋白质反应的能力而广为人知，产生一种深蓝色或紫色的颜色，称为鲁赫曼紫。这一特性使得萘氢醌成为检测多孔表面（如纸张或纸板）上指纹的宝贵工具，而传统方法可能会失效。当萘氢醌与指尖留下的汗水中的氨基酸相互作用时，反应发生，使法医专家能够可视化和分析那些肉眼看不见的指纹。在生物化学领域，萘氢醌作为氨基酸分析的试剂。当蛋白质或肽被水解成其组成氨基酸时，可以采用萘氢醌通过比色法定量这些氨基酸。所产生的颜色强度与样品中氨基酸的浓度成正比，使其在蛋白质研究和营养研究中成为一种有价值的技术。颜色变化背后的机制涉及萘氢醌与氨基酸的氨基形成复合物。在这一反应中，水被释放，最终形成的化合物经历进一步转化，产生特征性的紫色。这一反应不仅限于氨基酸；萘氢醌还可以与初级胺和某些次级胺反应，从而扩大了其在分析化学中的应用。尽管有许多应用，但处理萘氢醌时需要谨慎，因为其潜在的毒性以及对适当实验室安全协议的需求。研究人员和法医科学家在使用该化合物时，必须佩戴适当的个人防护装备（PPE），以避免任何不良健康影响。总之，萘氢醌是一种多功能且强大的化学化合物，对法医学和生物化学做出了重要贡献。其揭示隐藏指纹和促进氨基酸分析的能力凸显了其在这些领域的重要性。随着研究的持续推进，萘氢醌的应用可能会进一步扩展，可能导致新的发现和创新。理解萘氢醌的性质和用途不仅增强了我们对化学反应的认识，还强调了化学与各个科学学科之间的相互联系。对萘氢醌及其衍生物的持续探索可能为犯罪现场调查和生化分析的新方法铺平道路，展示了这一非凡化合物的持久相关性。