Photometric Measurement Device

The photometric measurement instrument analyzes the concentration of sample components by detecting changes in the intensity of transmitted or reflected light, based on the absorption characteristics of substances to light of specific wavelengths. It is used for determining solution color and turbidity, providing quantitative data in applications such as water quality monitoring and dye formulation.
Selection
When selecting, consider matching the optical properties of the measurement object to the detection wavelength range, determine the transmission or reflection measurement mode based on the sample form, account for environmental adaptability concerning the protection rating, link operational requirements with automatic calibration functions, and align the data output method with the interface type.

Terms

Standards

Instruments

Adopt photometric 90 ° scattering measurement method, equipped with automatic cleaning brush and bubble measurement cell, support automatic sewage discharge and cleaning interval setting, Measurement range 0.00-500 NTU, Repeatability ≤ 2%.

$ 2783.00

Support Bluetooth wireless setting and download, waterproof depth of 30 Meters, memory can store 96000 Measured values, users can replace the battery by themselves, and have temperature threshold LED alarm function.

$ 235.00

One key automatic correction ABS value, Light spectrum Bandwidth 4.0nm, Wavelength range 325~ 1000nm, Imported tungsten lamp life up to 2000 hours, can accommodate 100mm Cuvette, support photometric detection and quantitative analysis.

$ 687.00

With 0.2 ° observation angle and -4 ° incident angle configuration, Measurement range 0~ 3000cd · lx-1 · m-2, support voice broadcast and Touchscreen operation, built-in Data storage card for easy export.

$ 2253.00

Handheld design for easy on-site operation, observation angle 0.2 °, incident angle -4 ° to meet the standard requirements, equipped with calibrated block to ensure accurate measurement, lithium battery supports 16 hours of continuous work.

$ 1763.00

Colorimetric measurement is achieved using the bischell method. Measurement range 0.00-5 mg/L, 100 tests are provided, and copper concentration is accurately determined by Color change.

$ 186.00

Adopt Czerny-Turner optical path to ensure detection of linear Precision and ultra-low stray light, Light spectrum Bandwidth 2nm, can accommodate 5~ 100mm Cuvette, support a variety of Basis Weight test methods.

$ 1009.00

Using Czerny-Turner optical path to ensure linear Precision and ultra-low stray light, Light spectrum Bandwidth 4.0nm, can accommodate 5~ 100mm Cuvette, support automatic wavelength calibration and Data storage.

$ 858.00

Adopt 60 ° Measurement Angles, Measurement range 0~ 1000GU, Repeatability 0.2GU, support USB and Bluetooth interface, can store 10000 sample data, suitable for surface Gloss measurement of various materials.

$ 332.00

With 60 ° Measurement Angles and 0~ 199.9GU Measurement range, Stability up to +/- 0.4GU, rechargeable battery design, compact and easy to carry, suitable for surface Glossiness detection.

$ 299.00

Adopt 75 ° Measurement Angles, Measurement range 0~ 200GU, Repeatability +/- 0.5GU, support USB and Bluetooth data output, can store 254 sets of data, built-in rechargeable lithium battery, with backlight display.

$ 375.00

Using 60 ° Measurement Angles, Measurement range 0~ 199GU, accuracy +/- 2GU, low energy consumption design single battery can be used for more than 58 hours, anti-scratch coating to protect the test object.

$ 243.00

Measurement range 1.0-300 mm, error +/- (1% H +/- 0.1) mm, support Speed of sound measurement and upper and lower limit alarm, suitable for a variety of material thickness detection.

$ 307.00

With 60 ° Measurement Angles and 0~ 1200GU wide Measurement range, equipped with a full-color display, a single charge can be continuously measured 15,000 times, Measurement time is less than 1 second.

$ 218.00

Using 60 ° Measurement Angles and 0~ 199.9GU Measurement range, with 10 * 20mm Measuring Area and +/- 1.2GU Indication Error, the whole set of instruments is designed in one piece and the measuring port has anti-scratch coating.

$ 364.00

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.
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.
Determination of free amino acid content in protein solutions using a microtitration apparatus.
This article introduces a method for determining the free amino acid content in protein solutions using a microtiter plate reader. It is based on the ninhydrin color reaction, where amino acids react with the reagent under specific conditions to produce colored compounds, and the concentration is calculated by measuring the absorbance.
Operating Specifications for the Determination of Hexavalent Chromium Content in Wastewater Using Colorimetric Titration Apparatus
This article introduces the standard operating procedure for determining hexavalent chromium content in wastewater using a colorimetric titrator. The method is based on the reaction between hexavalent chromium and diphenylcarbazide under acidic conditions to form a purplish-red complex, with the titration endpoint determined by monitoring changes in absorbance at a wavelength of 540 nanometers.
Wavelength selection for the determination of sulfate content in water quality using photometric titrator
This article discusses how to select the wavelength when using a photometric titrator to determine the sulfate content in water. The core issue lies in the fact that wavelength selection directly affects the accuracy and anti-interference capability of the detection.
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.
The role of spectrophotometers in ink color matching
The spectrophotometer objectively quantifies color by measuring the spectral data of ink. Based on the Lambert-Beer law, it converts color into calculable spectral values, replacing traditional methods that rely on the human eye and experience.
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.
Determination of Chromaticity Value of Pulp by Spectrophotometry
This article introduces the method for determining pulp chromaticity using spectrophotometry. It first explains the importance of chromaticity for pulp quality, then details the basic principles of spectrophotometry, which quantifies color by measuring the reflection of light from the pulp, typically expressed using the CIELAB color system.
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.