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1-25 的 144 产品与服务
The Rectangular Long Path Cell Holder is a single cell holder that accommodates rectangular cells with path lengths from 10 mm to 100 mm..
The Standard Cell Holder accommodates rectangular cells up to 10 mm path length. This holder is compatible with the LAMBDA 20/30/40/20Bio/30Bio/40Bio/40P/25/35/45/ 650/750/850/850+/900/950/1050/1050+ spectrometers.
The Tungsten Lamp for LAMBDA 365 comes pre-aligned and can be easily installed by the customer. Visible region light source.
Caution: Eye protection is required if viewing these lamps when lit.
TheTungsten Lamp for LAMBDA 465 comes pre-aligned and can be easily installed by the customer. Visible region light source. < /p>
Caution: Eye protection is required if viewing these lamps when lit.
The Deuterium Lamp for LAMBDA 365 comes pre-aligned and can be easily installed by the customer. UV region light source.
Caution: Eye protection is required if viewing these lamps when lit.
The Deuterium Lamp for LAMBDA 465 comes pre-aligned and can be easily installed by the customer. UV region light source.
Caution: Eye protection is required if viewing these lamps when lit.
The Cable Adapter for Legacy LAMBDA Spectrometers comes with the UV Lamp Complete (B0114615) and makes this lamp compatible with earlier models of LAMBDA spectrometers, such as the LAMBDA 1/3/5/7/9.
The high-energy Xenon Flash Lamp for the LAMBDA 265 provides consistently high performance for years of worry-free operation. When a replacement becomes necessary, we recommend that this lamp be replaced by one of our Service Engineers.
The narrow sample chamber of rectangular Ultra-Micro Cells optimizes the use of smaller sample sizes, by raising the chamber directly into the center of the light path and masking it with black quartz. Ultra-micro cells have a center height of 15 mm and two clear windows. These cells have a blue PerkinElmer logo indicating a transmission of 80% over a spectral range of 200 - 2,500 nm.
The Quartz Suprasil Macro Fluorescence Cuvette has a path length of 10 mm, a volume capacity of 3.5 mL, and a PTFE cover. Qty. 2
1-25 的 29 技术资源
滤光片有多种功能，包括色彩校正、改善光学系统中的色彩平衡，和定量减少透射光水平的中性密度滤光片等。从设计到生产阶段，各类滤光片的表征对设计验证和执行成品质量检验/质量保证而言至关重要。本应用文献强调了将珀金埃尔默® LAMBDA™ 1050产品用于分析特定滤光片的最佳方法。
研究材料时，偶尔需要扫描如激光防目镜、滤光片和偏振材料等高吸光度样品。此类样品通常需要在电磁光谱的整个紫外、可见光和近红外范围内进行测量。
先进的仪器是研究纳米材料的关键。光学和热学测量技术等功能性工具，实现了对材料的表征分析。至此，再结合运用如AFM和TEM-SEM等成像工具，丰富了材料的结构空间信息。本海报介绍了近期几个颇具挑战性的测量案例，与带隙分析、等离子体共振和多态结构相关。
QA/QC analysts and lab technicians in a wide variety of fields – pharma and biopharma, applied materials, optics, food, and academia among them – need to analyze samples quickly, accurately, and easily through their UV/Vis systems, with better turnaround times, confidence in results, and increased p ...
The 150 mm Integrating Sphere is the recommended accessory for measurement of total solar reflectance and transmittance in the glass industry and for the measurement of UV transmittance of paints and films in the automotive industry. Many national laboratories use it in R&D studies and for calibrati ...
Quantification methods for total protein are among the longest-established fundamental and important experiments of bioscience. UV/Vis Spectrophotometry is widely used for the determination of protein. This application note describes a typical protein method, the Bradford method. Data is rapidly acq ...
The data shows the suitability of the LAMBDA 265 for producing rapid, high-quality spectra. It also shows that the instrument is able to measure the higher nanoparticle sizes, even though these scatter light to a greater extent due to the increased particle size and also settle out more quickly.
In surface waters, phosphorus commonly exists in its phosphate form. A high concentration of phosphate in water is indicative of domestic waste, industrial effluent, and agricultural runoff which can lead to eutrophication. Eutrophication causes an increase in plant and algal growth, which decreases ...
Ammonia-nitrogen (NH3-N) occurs naturally in groundwaters at concentrations below 0.2 mg/L and up to 12 mg/L in surface waters, as a result of decomposition of organic matter. High concentrations of ammonia in surface waters are toxic to aquatic life and are indicative of contamination from industri ...
Clinical chemistry uses chemical processes to measure levels of chemical components in the blood. It is very useful for the early diagnostic of disease and for monitoring organ function. The most common specimens used in clinical chemistry are blood and urine and this application note shows the comm ...
UV/Vis spectrometers are highly versatile instruments employed in a wide variety of applications. The development of microvolume cuvettes that can be easily fitted in UV/Vis spectrometers allows ultra low sample volumes while maintaining the desired accuracy. In this application, the LAMBDA® 365+ UV ...
Lactate generation and quantification is a topic of increasing interest in cancer metabolic research and also one of the most often measured parameters during clinical exercise testing and performance testing of athletes. Lactate also has different regulatory functions for wound development dependin ...
UV/Vis spectroscopy represents a powerful technique to study any analyte that is able to absorb light in the UV and Visible region of the electromagnetic spectrum. When proteins contain aromatic side chain amino acids and disulfide bonds,1 these complex biomolecules fall into this category of analyt ...
Engine coolants are an important fluid sometimes neglected in motor vehicles. Some citations in the literature report that a major cause of engine failure behind lubricant failure, is that of the coolant. Nitrite (NO2-) is a common additive to coolant formulations that is used to prevent pitting of ...
Principle Total phosphoric compounds in water sample is changed to phosphate (PO4 -) form by oxidation. After treatment with ammonium molybdate • ascorbic acid solution, blue color is created. This color is measured at 880 nm. In this application note, the quantitative analysis of total phosphorus ( ...
Historical manuscripts are subject to deterioration due to aging processes under different storage and handling conditions. There can be physical, chemical and biological factors with different impact on papers and parchments or inks and dyes. Optical methods are preferred for the evaluation of hist ...
Determination of nucleic acids is a common procedure in most molecular laboratories. Accurate and rapid method to quantify DNA is essential to obtain reliable outcomes. Fluorescence spectroscopy offers a simple yet highly sensitive technique to determine low amounts of DNA in solution (even in biolo ...
Quantification of RNA can be easily carried out exploiting the Beer-Lambert’s Law which defines the direct proportion between the concentration of a sample and the quantity of light absorbed. Based on the presence of purine and pyridine heterocyclic aromatic rings, nucleic acids are able to absorb l ...
Using the LAMBDA 465 UV/Vis Spectrophotometer and UV Lab software, quantification of the oligonucleotide was performed.The range of concentrations was 0.5 - 2.0 µM. Rapid acquirement of spectra and good sensitivity were obtained with the LAMBDA 465.
In this application, the quantitative analysis of formaldehyde was successfully executed using the LAMBDA 265 UV/Vis spectrophotometer and Merck Spectroquant formaldehyde cell test kit. Principle Formaldehyde reacts with chromotropic acid in sulphuric solution to form a violet dye which can be detec ...
Spectrosopic techniques, such as UV-Visible spectrometry, can be deployed to observe the chemical changes taking place during fast reactions. However, in many cases the reaction timescales are too fast to be performed and observed by the simple manual mixing of the reactants in a cuvette. The stoppe ...
Nitrite, occurs naturally in the environment as an intermediate of the nitrogen cycle through microbial decomposition of organic matter. However, nitrite contains nitrogen in a reasonably unstable oxidation state and readily oxidizes to nitrate. As a result, nitrite is present at considerably lower ...
a-chymotrypsinogen is a precursor, or zymogen, of chymotrypsin. Chymotrypsin fulfils the role of breaking down proteins into smaller peptides in the digestive tract. It also displays an interesting property in that, when it unfolds due to thermal denaturation, it is able to refold when cooled back t ...
Chromium (VI) ions react with diphenylcarbazide in weakly phosphoric solution. The product, diphenylcarbazone, is a red-violet complex which can be detected photometrically at 550 nm. The chromate cell test kit is suitable for the concentration range of 0.11 – 4.46 mg/L chromate allowing the concent ...
Iron is rarely found in its elemental form in nature due to the high tendency of its ions, Fe(II) and Fe(III), to form oxygen and sulphur containing compounds. Concentrations of iron found in surface waters are typically no greater than 1 mg/L, unless contaminated by industrial effluents, whilst muc ...