Tungsten Lamp
Tungsten Lamp - Related Videos
06:57
Loop-mediated Isothermal Amplification (LAMP) Assays for the Species-specific Detection of Eimeria that Infect Chickens
0 Views •
Cited by 10 •
2015
Diagnosis of Eimeria infection in chickens remains demanding. Parasite morphology- and host pathology-led approaches are commonly inconclusive, while molecular approaches based on PCR have proven demanding in cost and expertise. The aim of this protocol is to establish loop-mediated isothermal amplification (LAMP) as a straightforward molecular diagnostic for eimerian infection.
05:03
A Loop-mediated Isothermal Amplification (LAMP) Assay for Rapid Identification of Bemisia tabaci
0 Views •
Cited by 11 •
2018
This paper reports the protocol for a rapid identification assay for Bemisia tabaci based on loop-mediated isothermal amplification (LAMP) technology. The protocol requires minimal laboratory training and can, therefore, be implemented on-site at points of entry for plant imports such as seaports and airports.
08:03
Reverse Transcription-Loop-mediated Isothermal Amplification (RT-LAMP) Assay for Zika Virus and Housekeeping Genes in Urine, Serum, and Mosquito Samples
0 Views •
Cited by 8 •
2018
This protocol provides an efficient and low-cost method to detect Zika virus or control targets in human urine and serum samples or in mosquitoes by reverse transcription loop-mediated isothermal amplification (RT-LAMP). This method does not require RNA isolation and can be done within 30 min.
07:47
Reverse Transcription Loop-Mediated Isothermal Amplification (RT-LAMP) Assay for the Specific and Rapid Detection of Tilapia Lake Virus
0 Views •
Cited by 5 •
2020
We present an RT-LAMP assay for the detection of TiLV in tilapia fish using simple instruments over a relatively short period of time compared to conventional RT-PCR techniques. This protocol may help control the epidemic spread of TiLVD, especially in developing countries.
10:35
Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis
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2016
The assembly and use of a multimodal microendoscope is described which can co-register superficial tissue image data with tissue physiological parameters including hemoglobin concentration, melanin concentration, and oxygen saturation. This technique can be useful for evaluating tissue structure and perfusion, and can be optimized for individual needs of the investigator.
FAQs
Current heats the tungsten filament until it emits thermal radiation, producing a continuous rather than line-like distribution across wavelengths. Because the output is dominated by visible and near-infrared radiation, the source can illuminate a broad wavelength range in one measurement system. This broadband behavior makes it useful for spectrophotometric and colorimetric work.
A vacuum or inert gas limits oxidation of the hot filament, helping preserve the emitting element during operation. In specialized halogen versions, a reversible tungsten-halogen cycle reduces filament loss. These design features matter because they support more stable lamp operation and help maintain a predictable radiation source for analytical instruments.
The lamp produces a continuous spectrum, so its radiation spans a range of wavelengths instead of being limited to one discrete feature. That broad output suits measurements in which the instrument evaluates visible and near-infrared radiation, including absorbance and colorimetric analyses. Its role is therefore broadband illumination rather than selection of a single spectral line.
The lamp supplies broadband illumination to the spectrophotometer, where the resulting radiation supports absorbance measurements across relevant visible wavelengths. In a typical analytical workflow, its output is used as the radiation source for examining how a sample attenuates light, allowing colorimetric or quantitative absorbance measurements. The source is especially appropriate when visible or near-infrared coverage is required.
It is a suitable choice when the method requires predictable, broadband radiation in the visible or near-infrared region. This includes colorimetric measurements and quantitative absorbance work, where consistent illumination supports comparison between measurements. It is also useful as an instrument-alignment source, extending its role beyond direct sample analysis to setup and performance checks.
Its predictable output provides a reference radiation source for calibration, helping an analytical instrument establish or verify its response before quantitative absorbance measurements. Reliable illumination is important when measured absorbance must be compared across samples or against an analytical procedure. In chemistry, this links the lamp’s physical emission behavior to reproducible instrumental results.