Colorimetry is an analytical method to determine the concentration of color forming dissolved substances in solution. Ituses the principle that absorption of light of characteristic wavelengths is proportional to the concentration of the dissolved substance (Beer-Lambert law). Infinita Lab, USA, network of testing labs offers this test to clients in the USA and across the world. ... Read More
Average 30% Cost Savings
100% Confidentiality Guarantee
Free, No-obligation Consultation
100% Customer Satisfaction
TRUSTED BY ENGINEERS FROM
Concentration Measurement by Colorimetry
Colorimetry is an analytical method to determine the concentration of certain dissolved substances in solution. It is based on the principle that when a beam of white light passes through a colored solution, some wavelengths are absorbed, changing the color and intensity of the transmitted beam. The transmitted light is detected by a photoelectric cell, producing a digital or analog signal that is recorded. The main parts of a colorimeter are a light source, a sample cell to hold the specimen solution and a photoelectric detector system. Colorimeters are used for a wide range of research and quality control applications across the chemical, environmental and biological fields.
Concentration is determined from the Beer-Lambert law which relates absorbance and transmission intensities to the concentration of the dissolved substance and the distance traversed through the sample cell.
Some substances that are colorless in solution can be made to react with suitable reagents that produce colored products, in proportion to the concentration. The resulting solution is subjected to colorimetric testing. Comparison with a known calibration standard enables the determination of unknown concentrations of the substance.
Monochromatic light from a controlled source can also be used, in which case the method is termed spectrophotometry.
Common Uses of Colorimetry
Raw Water quality testing
Wastewater pollution testing
Food Processing quality control
Paint color quality control
Textile color quality control
Pharmaceutical products quality control
Advantages of Colorimetry
Quick and simple technique
Provides a quantitative estimate
Portable equipment can be used in field conditions
Limitations of colorimetry
Only colored solutions can be analyzed
Calibration with a standard solution is needed
Different substances with same color may cause errors
Industrial Applications of Colorimetry
Environmental testing
Food industry
Textile Industry
Pharmaceutical Industry
Featured Metrology Testing Services
Select Other Metrology Testing Services From Catalogue
Colorimetry is based on the principle that when a beam of white light passes through a colored solution, some wavelengths are absorbed, changing the color and intensity of the transmitted beam.
o Raw Water quality testing
o Wastewater pollution testing
o Food Processing quality control
o Paint color quality control
o Textile color quality control
o Pharmaceutical products quality control
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 test is a standard test method for the analysis of sulfochromate etch solutions used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
STEP 01
You share material and testing requirements with us
STEP 02
You ship your sample to us or arrange for us to pick it up.
STEP 03
We deliver the test report to your email.
Just share your testing requirements and leave the rest on us!
Free, no-obligation consultation
Guaranteed confidentiality
Quick turnaround time
Hassle-free process
Let us combine our capabilities to achieve success!!