Colorimetric SpectroPhotoMeter

Colorimetric spectrophotometers perform quantitative analysis based on the absorption characteristics of substances to light at specific wavelengths. A light source emits a beam, which is dispersed by a monochromator, and the sample absorbs part of the light intensity. The detector measures the intensity of the transmitted light. It is used in applications such as solution concentration determination, color analysis, and water quality testing.
Selection
When selecting, consider whether the measurement wavelength range covers the application requirements, ensure the sample type matches the cuvette material, and match the accuracy requirements with the instrument's resolution. Pay attention to baseline stability and stray light indicators, and ensure the operating interface is simple and clear. Maintenance costs involve the lifespan of the light source and the price of accessories.

Terms

Standards

Instruments

The width is 5cm, the optical path is 10mm, and the dimensions are 12.5 × 52.5 × 45mm, which is suitable for the use of Spectrophotometer to ensure Optical inspection detection accuracy.

$ 114.00

Width 2cm, optical path 10mm, dimensions 12.5 × 22.5 × 45mm, specially designed for Spectrophotometer matching Cuvette, to ensure Optical inspection detection accuracy.

$ 101.00

The width is 3cm, the optical path is 10mm, and the dimensions are 12.5 × 32.5 × 45mm. As a special accessory for Spectrophotometer, it ensures the stability of the optical path and the accuracy of measurement.

$ 106.00

Colorimetric measurement using ferrous sulfate method, Measurement range 0~ 150mg/L, providing 100 tests to ensure accurate determination of nitrite concentration.

$ 202.00

Measurement range 0~ 150mg/L, 10mL Colorimetric Encasement, 25/box, suitable for rapid detection of chemical oxygen demand in water quality.

$ 169.00

Colorimetric digestion integrated tube operation, no need to transfer liquid, Measurement range 0~ 250mg/L, detection limit of 0.5mg/L, multiple measurements of water samples to take the average value to reduce errors, suggesting detection of abnormalities.

$ 2913.00

Colorimetric integrated tube with digestion is used to realize detection integration, the detection limit is 0.01mg/L, Optical inspection Stability ≤ +/- 0.001A/20min, supports multiple power supply modes and wireless data transmission, and the portable design is suitable for on-site rapid detection.

$ 816.00

Colorimetric integrated tube design is adopted, with a detection limit of 0.5mg/L, high temperature digestion at 125 ° C, built-in 4000 data storage and a variety of transmission interfaces to meet the needs of on-site rapid detection.

$ 2913.00

Adopt digestion Colorimetric integrated tube design, detection limit of 0.02mg/L, support 125 ℃ closed digestion, built-in imported cold light source life of 100,000 hours, can store 4000 sets of data and support multi-mode power supply.

$ 2203.00

Colorimetric digestion integrated tube operation, no need to transfer liquid; Measurement range 0~ 20mg/L, detection of the lower limit of 0.01mg/L; multiple measurements of water samples and remove abnormal values, improve accuracy; with abnormal detection prompt function.

$ 2203.00

The imported cold light source does not need to be preheated for 100,000 hours, supports 0.001mg/L high Sensitivity detection, digests Colorimetric integrated tube to make the measurement safe and fast, can store 4000 sets of data and support multi-mode power supply.

$ 4721.00

Measurement range 0~ 1500mg/L, 10mL Colorimetric tube Encasement, 25 boxes convenient for batch use, suitable for water quality chemical oxygen demand detection and analysis.

$ 169.00

Adopt digestion Colorimetric integrated tube design for safer and more convenient detection; minimum display value of 0.001mg/L, high Sensitivity; built-in rechargeable lithium battery, support long standby, power only 0.3W, strong portability.

$ 4882.00

The imported cold light source does not need to be preheated for 100,000 hours, supports 0.001mg/L high Sensitivity detection, is equipped with a digestion Colorimetric integrated tube to achieve safe and fast measurement, and has 4000 sets of data storage and a variety of transmission interfaces.

$ 5528.00

Measurement range 0~ 1.5mg/L, resolution 0.01mg/L, eliminating human error and improving measurement accuracy.

$ 262.00

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.
The necessity of a standard light source box in visual color comparison and color difference assessment of coatings.
In the production of coatings, accurate color evaluation is crucial. Visual color comparison is easily affected by light, as natural light is unstable, and different lighting conditions can make colors appear different.
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.
Visual color comparison method using colorimetric tubes to determine the color phase of varnish.
Colorimetric tube visual colorimetry is a method used to determine the color hue tendency of varnish samples by directly comparing them with a standard color scale using the human eye. During operation, samples and standard liquid columns should be prepared using colorimetric tubes of consistent specifications under standard lighting conditions, and the hue differences should be observed in parallel.
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.
Standardized ink color evaluation environment for visual color comparison cabinets
This article introduces the standardized application of visual color comparison boxes in ink color evaluation. It emphasizes that to ensure the accuracy and consistency of color judgments, the evaluation environment must be strictly controlled.
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.