When dealing with special chemical mixtures, it is very important to be accurate. An error of as little as 1% in the ratio of dilution can significantly degrade the yield in this very sensitive process. To deal with this potential problem, near infrared technology or NIR technology is usually employed.
NIR technology such as a near infrared inline chemical analyzer is often used to take tighter control of the production process. But, not only does this NIR inline chemical analyzer tighten production control, it also reduces costs by increasing productivity, improving yields and avoiding scraps.
Several methods may be employed when analyzing the concentration of chemicals in a mixture. These methods include NIR analysis, refractive, capacitive and titration. An NIR inline chemical analyzer utilizes a process that measures the light absorbed by a fluid or chemical mixture. Refractive is a crude type of NIR analysis which utilizes a glass prism to break down the light spectrum and expose the properties of each component of the chemical mixture. Capacitive is a process which uses electrical conductivity to correlate the mixtures chemical make-up. And, Titration is a traditional method which utilizes chemical reagents that react with the water in a sample solution and is measured to an electrical endpoint.
The NIR inline chemical analyzer works by measuring the absorption spectrum of a chemical mixture lined up to an optical flow cell which is connected to the analyzer by optical fibers. These optical fibers, then, channel the light to the chemical analyzer’s flow cells. The light is, then, channeled back through the optical fibers to a NIR spectrometer, which measures the absorption spectrum. Since the chemical analyzer and flow cell are independent systems, they can be easily incorporated into a control system which does not require a separate computer for operation.
Compared with the traditional Titration system, the NIR inline chemical analyzer has produced excellent test results. This NIR technology has the ability to match the physical sampling data of the Titration system, with excellent correlation. But, unlike the Titration system, NIR analysis happens in real-time.
Analyzing and measuring chemical concentrations and mixtures using NIR technology has given chemists all over the world the power of accurate results in real-time.