Instruments replace manual labor
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Now, more and more instruments are replacing traditional analysis methods such as titration. Recently, we have used refractometers to replace the titration method for determining the main components in samples such as liquid alkali, saline, and hydrogen peroxide. What other samples can be replaced by instruments in routine sample analysis? What instruments can be used to measure the acidity of trichloroethylene (which is insoluble in water)?
With the rapid advancement of technology, there are indeed many instruments that can replace traditional chemical analysis methods; for example, mass spectrometers, liquid chromatography (HPLC), gas chromatography (GC), atomic absorption spectroscopy (AAS) and others can be used to analyze and detect compounds. These instruments not only improve the accuracy and repeatability of analysis, but also **reduce analysis time and minimize errors caused by manual operation. For the acidity analysis of trichloroethylene, **infrared spectrometry (FTIR)** or **gas chromatography-mass spectrometry (GC-MS)** can be considered. An infrared spectrometer can identify the functional groups of a compound by measuring its infrared absorption spectrum; therefore, it can be used to analyze the acidic impurities that may be present in trichloroethylene. Gas chromatography-mass spectrometry can separate and identify various compounds in a sample, and the content of acidic substances can be accurately determined through specific ion monitoring. In addition, for water-insoluble samples, **Nuclear Magnetic Resonance (NMR)** is also a very useful analytical technique, especially for structural identification. However, MRI technology may be too complex and expensive for simple acidity measurements. In general, the choice of instrument for analysis depends on specific analytical requirements, the properties of the sample, and cost considerations. In the laboratory, which analytical method to use is usually determined based on these factors. .