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The instrument used to scan the fluorescence spectrum emitted by liquid-phase fluorescent markers is collectively referred to as a fluorescence spectrophotometer. It can provide various physical parameters, such as excitation spectrum, emission spectrum, fluorescence intensity, quantum yield, fluorescence lifetime, fluorescence polarization, etc., reflecting the bonding and structure of molecules from different perspectives. By measuring these parameters, the conformational changes of molecules in various environments can be inferred, and general quantitative analysis can also be conducted to elucidate the relationship between molecular structure and function
Flame photometric detector is a type of gas chromatography detector, also known as sulfur or phosphorus detector, which has high selectivity and sensitivity for phosphorus and sulfur compounds, and is widely used for the determination of organic phosphorus and organic sulfur pesticide residues; It can also detect thiols in essential oils COS、H2S、CS2、SO2； Thiols in water pollution; H2S, SO2, CS2 in the air; Gas containing sulfides in natural gas. The commonly used flame photometric detector is a single flame, mainly
Ruicheng photoelectric enzyme-linked immunosorbent assay filter: IAD hard film structure, no drift, reliable and durable. Various specifications and sizes are available, suitable for various famous domestic and foreign enzyme-linked immunosorbent assay (ELISA) analyzers. Foreign brand enzyme-linked immunosorbent assay (ELISA) instruments are suitable for filters such as Mk3 thermoelectric ELISA reader, Tiken Tecan Sunup ELISA reader, Bole Bio rad ELISA reader, etc. Domestic brand enzyme-linked immunosorbent assay (ELISA) filter: Most domestic brands are applicable. Conventional enzyme reader filter wave
A characteristic of a telecentric scanning lens is that at least one lens in the lens group has an area larger than the size of the telecentric scanning lens. For example, if there is a 100 * 100mm telecentric scanning lens, there must be at least one lens with a size greater than 100 * 100mm, which means that the diameter of one of the lenses must be greater than 100 * 1.414=141.4mm. Many customers want to buy large format telecentric scanning lenses, for example, some customers divide me into
Optical beauty equipment mainly uses laser, strong pulse light, E-light, and infrared light as light sources to remove freckles, acne, blood streaks, soft skin, hair removal, eyebrow washing, tattoos, etc. Due to the unique spectral characteristics of these light source products, filters are required to achieve certain functional effects. At the same time, it avoids the harm caused by stray light to human skin. Electronic optical beauty device filter/IPL filter is mainly used for various electronic optical models, ipls
Nowadays, people have increasingly high demands for quality of life. We need the atmosphere of eating and the intelligence of our homes. Even the traditional entertainment program that began to be popular in China in the 1980s - watching TV - has been challenged. Yes, the rapidly developing home projectors in recent years have shaken the position of traditional television. Do you know the principle behind projectors, which are ubiquitous in daily life? The projector first illuminates the image display element with light to generate an image, and then uses a lens to enter
In the optical lens of an optical component, every point on the object plane within the effective field of view during observation forms a clear image point on the image plane of the eye. We refer to the difference between the ideal image and the actual image as image difference, abbreviated as aberration. Image differences can be divided into two categories: monochrome image differences and color differences. Monochromatic aberration can be divided into: spherical aberration: when a near axis ray passes through a spherical mirror, the ray passing through the center of the lens and the ray passing through the edge of the lens cannot be at the same point
The light we see in our daily lives is actually composite light, for example, using a prism to let sunlight pass through the prism, the light will be decomposed into seven colors by the prism, and this phenomenon is called dispersion. This dispersion phenomenon is of great value to the jewelry and diamond jewelry industry, but it is a major problem for optical lenses. If it is a glasses lens, it will straighten the lens and cause blurred vision even when worn. To handle this problem scientifically, the first step is to identify the parameters of the problem
An optical prism is a transparent optical component that refracts light by polishing the surface of the prism. Prisms can split light into its original components, namely spectra, and can also be used for reflection or splitting into different polarized light. When light waves enter another medium from one medium, the speed of light changes, and the direction of light propagation also bends, resulting in varying degrees of light reflection. The refractive index of most media is related to the wavelength or color of light. When the prism surface refracts, dispersion will cause
The most widely used type of infrared filter currently is the Michelson interferometer scanning, known as Fourier transform infrared spectroscopy. Infrared spectrometer is an instrument that utilizes the absorption characteristics of the detected substance towards specific wavelengths of infrared radiation to analyze chemical composition and molecular structure. Its structure mainly includes four parts: light source, spectral system, sample cell, and detection system. Common light sources for infrared spectroscopy include laser diodes, tungsten halide lamps, and light-emitting diodes. Spectral System