CATEGORIES

    FluorocoloriMeter

    Overview Knowledge Standards Terms
    A fluorescence colorimeter excites a sample with a specific light source to produce fluorescence, and a detector measures the fluorescence intensity to determine the concentration of substances. It is used for detecting fluorescent whitening agents in inks, assessing the degree of plastic aging, and analyzing the content of fluorescent dyes in the papermaking process.
    Selection
    When selecting, consider that the detection limit must match the sample concentration range, the wavelength range should cover the excitation/emission bands of the analytes, and the cuvette specifications should be compatible with standard cuvettes or micro-volume detection. Pay attention to the instrument's signal-to-noise ratio and baseline stability, and ensure the operation interface is simple and easy to calibrate.
    type

    Terms

    Optical Dissolved Oxygen Meter
    Dark Box UV Analyzer
    Fluorescence Spectrophotometer
    Fluorescence microscope
    Fluorescence Microscope
    Dark box UV analyzer
    Platinum-Cobalt Colorimeter
    Fluorescence Dissolved Oxygen Meter
    Gardner Colorimeter
    Triple-Purpose UV Analyzer

    Standards

    Incoming GB/T 46747-2025
    Rapid Determination of Heavy Metal Elements in Furniture Coatings by X-ray Fluorescence Spectrometry
    Active GB/T 16585-1996
    Rubber，vulcanized--Test method of resistance to artificial weathering (Fluorescent UV lamp)
    Active GB/T 5838.3-2015
    Phosphors—Part 3: Test methods for properties
    Active GB/T 16422.3-2022
    Plastics—Methods of exposure to laboratory light sources—Part 3: Fluorescent UV lamps
    Active GB/T 23595.2-2025
    Test methods of rare earth phosphors for LED—Part 2: Determination of relative brightness
    Active GB/T 23595.8-2025
    Test methods of rare earth phosphors for LED—Part 8: Determination of pressure cooker test property
    Incoming GB/T 21883-2025
    Fluorescent whitening agents—Determination of UV-absorption and fluoristrength
    Active GB/T 23987.3-2025
    Paints and varnishes—Methods of exposure to laboratory light sources—Part 3:Fluorescent UV lamps
    Active GB/T 38339-2019
    Determination of phosphorus content in fluorescent brightener products
    Active GB/T 23979.1-2009
    Fluorescent whitening agents - Determination of relative whiteness and shade - Dyeing method for cotton fabric
    Active GB/T 23987-2009
    Paints and varnishes - Exposure of coatings to artificial weathering - Exposure to fluorescent UV lamps and water
    Active GB/T 9338-2008
    Fluorescent whitening agents - Determination of relative whiteness - Instrumental measurement
    Active GB/T 18754-2002
    UV-excitation fluorecent anti-counterfeiting intaglio printing ink
    Active GB/T 30798-2014
    The test method for safety of food detergents―Limit test for fluorescent whitening agent
    Active GB/T 32266-2015
    Method of performance testing for atomic fluorescence spectrometer

    Articles

    Use of Fluorescence Spectrophotometer in Measuring Excitation and Emission Spectra of Anti-Counterfeiting Fluorescent Inks
    This article introduces the application of fluorescence spectrophotometry in the spectral measurement of anti-counterfeiting fluorescent inks, including instrument calibration, sample preparation, and methods for measuring excitation and emission spectra.
    Sensitivity Enhancement of Dark Box UV Analyzers in Thin-Layer Chromatography Fluorescence Detection
    This article explores how to enhance the sensitivity of dark box ultraviolet analyzers in fluorescence detection for thin-layer chromatography. Sensitivity is influenced by factors such as light source stability, wavelength accuracy, sample background, and ambient light.
    Spectrophotometric Determination of Sulfur Content by Ultraviolet Fluorescence Method
    The determination of sulfur content by ultraviolet fluorescence spectrophotometry involves burning the sample to convert sulfur into sulfur dioxide, which is then excited by ultraviolet light to produce fluorescence for detection.
    Key Technical Points for Determining Arsenic and Mercury in Water Using Atomic Fluorescence Spectrophotometry
    This article introduces the key techniques for determining arsenic and mercury in water using an atomic fluorescence spectrometer. The experiment requires attention to safety precautions, regular maintenance of the instrument, and proper disposal of waste liquids.
    Comparative Study of Lovibond Colorimeter and Iron-Cobalt Colorimeter
    The Lovibond colorimeter and the iron-cobalt colorimeter are two widely used visual color measurement instruments in the industrial field. Both are designed based on the principle of standard color comparison, yet they exhibit significant differences in their specific implementation methods and application standards.
    Application of Gardner Colorimeter in the Determination of Oil and Fat Color
    The Lovibond tintometer determines the color of oils and fats by visually comparing them with standard glass color standards, with results expressed as numerical codes. During operation, clarified oil samples are poured into the colorimetric cell and compared with color chips under a stable light source.
    Phosphor films and quantum dot coatings are uniformly applied using a coating machine.
    This article introduces the significance of phosphor films and quantum dot coatings in optoelectronics and display technologies, highlighting that their performance depends on the uniformity, thickness, and density of the coatings.