Ratio Double Beam SpectroPhotoMeter

The dual-beam ratio spectrophotometer simultaneously measures the reference beam and the sample beam, compensating for light source fluctuations in real-time to determine the absorbance of substances to light at specific wavelengths. It is used for color concentration detection in paints and inks, as well as analysis of plastic additive content, ensuring batch consistency.
Selection
Select cuvettes or integrating sphere accessories based on sample morphology; the wavelength range must cover the characteristic absorption peaks of the analyte; consider sample throughput when opting for automatic sampling functionality; prioritize a dual-beam structure in environments with significant vibrations; verify the instrument's baseline stability and noise indicators.

Terms

Standards

Instruments

1200L/mm UV dedicated grating to ensure low stray light and high resolution, proportional double beam of light design with automatic octagonal cell sample holder to improve test efficiency, Wavelength range 190~ 1100nm coverage of a wide range of applications.

$ 3268.00

Proportional double beam of light monitoring and Holographic grating, wavelength Precision +/- 0.5nm, stray light ≤ 0.15% T, support automatic zero adjustment and eight Sample Chamber linkage, easy and reliable operation.

$ 2252.00

1200L/mm UV dedicated grating and proportional double beam of light design, stray light ≤ 0.03% T, equipped with 10cm sample holder and automatic octet cell, support wavelength scanning and a variety of test modes.

$ 3623.00

Proportional double beam of light path and Holographic grating, stray light ≤ 0.15% T, Wavelength range 190~ 1100nm, support automatic zero adjustment and eight Sample Chamber linkage, with professional power-off protection function.

$ 2591.00

Adopt standard double beam of light path structure, equipped with 1600L/mm high performance holographic blazing grating and imported photoelectric converter, wavelength Precision +/- 0.5nm, stray light ≤ 0.03% T, with Automatic calibration wavelength error function.

$ 4592.00

Adopt standard double beam of light path structure, equipped with 1600L/mm high performance holographic blazing grating, wavelength Precision +/- 0.3nm, stray light ≤ 0.03% T, with Automatic calibration wavelength error function, support a variety of data map processing.

$ 4914.00

1200L/mm UV dedicated grating ensures low stray light and high resolution, proportional dual beam of light design supports a variety of test functions, equipped with automatic octagonal cell sample holder and 7-inch Touchscreen, Wavelength range 190~ 1100nm.

$ 4592.00

Single beam of light grating system, Wavelength range 340~ 1000nm, Light spectrum Bandwidth 4nm, sealing grating monochromator design to improve Stability and Metering accuracy, automatic adjustment 0% and 100% function to simplify operation.

$ 270.00

1200L/mm High Accuracy Grating and proportional dual beam of light paths, stray light as low as 0.03% T, equipped with automatic octagonal cell sample holder and 7-inch Touchscreen, support multi-wavelength and kinetic testing.

$ 2494.00

1200L/mm UV dedicated grating to ensure low stray light and high resolution, proportional double beam of light design with automatic octave cell sample holder to improve test efficiency, with automatic wavelength correction function and a variety of test modes.

$ 3268.00

1200L/mm UV dedicated grating and proportional double beam of light design, Wavelength range 190~ 1100nm, stray light ≤ 0.03% T, support automatic correction of wavelength error and a variety of test functions to ensure High Accuracy and Long-term Stability.

$ 2494.00

Adopt double beam of light path structure with 1600L/mm blazing grating, stray light ≤ 0.03% T, equipped with color Touchscreen and special software, support map four arithmetic and data export function, with automatic wavelength calibrating mechanism.

$ 5399.00

Single beam of light grating system, Wavelength range 340~ 1000nm, Light spectrum Bandwidth 4nm, with automatic zero and 100% function, sealing type grating monochromator mildew-proof design, improve Stability and Metering accuracy.

$ 344.00

Dual beam of light path structure and 1600L/mm high performance grating, Wavelength range 190-1100nm, stray light ≤ 0.03% T, equipped with color Touchscreen and Automatic calibration function, support a variety of Data analysis and map processing operations.

$ 5237.00

Single beam of light Optical inspection system, Light spectrum Bandwidth 4nm, Wavelength range 340~ 1000nm, with automatic zero and 100% function, sealing grating monochromator to improve Metering accuracy and Stability.

$ 307.00

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.
UV spectrophotometer for measuring residual monomers in polymer solutions.
This article introduces a method for determining residual monomers in polymer solutions using ultraviolet spectrophotometry. The principle relies on the characteristic absorption of monomers in the ultraviolet region, calculating their content based on the relationship between absorbance and concentration.
UV-Vis-NIR spectrophotometer measures the transmittance of anti-reflection coatings.
This article introduces the method of measuring the transmittance of anti-reflective coatings using a UV-Vis-NIR spectrophotometer. The instrument is based on the Beer-Lambert law, calculating transmittance by comparing the light intensity of the sample and the reference, covering a wide spectral range from ultraviolet to near-infrared.
Haze meter measures light transmission and scattering in agricultural film.
This article introduces how a haze meter measures the light transmittance and the proportion of scattered light in agricultural films. Haze is the percentage of scattered light in the total transmitted light, while light transmittance is the ratio of transmitted light to incident light.
Determination of Transmittance of Resin Solutions Using UV-Visible Spectrophotometer
This article introduces the method of measuring the transmittance of resin solutions using a UV-Vis spectrophotometer.
Coating Distinctness of Image (DOI) Meter Evaluates Surface Imaging Clarity
The Coating Distinctness of Image (DOI) meter is an optical instrument used for quantifying the imaging clarity of coating surfaces. It analyzes the reflection of standard patterns on the coating, measuring the ratio of specular reflection to diffuse reflection to obtain an objective DOI value.
UV-Vis Spectrophotometer Measures Ink Pigment Concentration
This article introduces the method of measuring the concentration of ink pigments using a UV-Vis spectrophotometer. The principle is based on the Lambert-Beer law, which calculates the concentration by measuring the absorbance of the pigment solution at specific wavelengths.
Application of UV Spectrophotometer in the Determination of Lignin in Pulp
This article introduces the application of ultraviolet spectrophotometry in determining the lignin content in pulp. Lignin is a key component affecting pulp quality. This method utilizes the characteristic absorption of lignin under ultraviolet light for measurement, offering simple and rapid operation.
Difference between dual-beam and array spectrophotometers
This article aims to systematically elucidate the core differences between double-beam and array-type spectrophotometers in terms of working principles, optical structures, performance characteristics, and applicable scenarios, providing clear technical references for professionals in related fields.
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.
Application of Spectrophotometry in Heavy Metal Detection
A spectrophotometer detects heavy metal concentrations by utilizing the absorption of light at specific wavelengths by substances, following the principle of the Lambert-Beer law. During detection, heavy metal ions react with chromogenic agents to form colored complexes, and the concentration is determined by measuring absorbance and comparing it against a standard calibration curve.
Guide to Avoiding Pitfalls When Purchasing a Spectrophotometer
When selecting a spectrophotometer, it is essential to first understand its working principle based on the Lambert-Beer law, as this helps in assessing the rationality of the instrument's design.
Practical Application of Spectrophotometer in COD, Ammonia Nitrogen, and Total Phosphorus Determination
This article introduces the practical applications of spectrophotometers in measuring key water quality indicators—Chemical Oxygen Demand (COD), Ammonia Nitrogen, and Total Phosphorus.
Application of UV-Visible Spectrophotometer in the Detection of Heavy Metals in Water
This article introduces the application of ultraviolet-visible spectrophotometry in the detection of heavy metals in water.
How to Choose the Right Spectrophotometer
When selecting a spectrophotometer, it is essential to start from the actual analytical needs, clearly defining the required wavelength range (ultraviolet, visible, or infrared) and the type of detection. Key evaluations should focus on core specifications of the optical system, such as wavelength accuracy, beam type, and stray light levels.