There are many instruments for testing water quality ion concentration on the market, how to choose a good instrument that is handy? This requires the performance, operability and improvement of work efficiency of the instrument as the premise, the comparison of a variety of instruments, the comprehensive analysis of the characteristics and methodology of various instruments, and the comprehensive consideration and scientific demonstration, and finally choose an instrument suitable for their own use. Therefore, the selection of water quality ion testing instruments is very important.
There are many considerations for choosing an instrument for water quality ion testing.
First of all, the ion meter, which is a simple instrument manufactured according to the principle of ion selection electrode method, is cheap, but the operation is cumbersome, and the detection error is large, because there are many human factors involved in the detection process, such as the need to prepare a variety of reference standard solutions, and then carry out data recording, but also to carry out a series of tedious operations such as statistical calculations, and finally to verify the results of detection and calculation, a sample down takes a lot of time and energy, but the biggest advantage of the instrument is that it is cheap.
The second is the ion chromatograph, which is an instrument that realizes ion detection based on the principle of reversible exchange exchange between dissociable ions on the ion exchange resin and the difference in the affinity of the analyte solute to the exchanger. The biggest advantage of this instrument is that there are many items that can be detected, but there are also many limitations of detection.
Finally, the Lanyi-301 automatic ion analyzer, the instrument adopts advanced flow-through pipeline electrode technology, with a high degree of intelligence, only a small number of samples are needed, and the corresponding ion concentration can be quickly and automatically detected, and fluoride ions, chloride ions, potassium ions, sodium ions, water hardness, calcium ions, pH, nitrate nitrogen and other items can be detected separately or compatibly, and users can choose the appropriate configuration according to their actual needs. The advantages of this instrument are obvious, moderate, conventional water quality ion testing items are involved, compared with ion meter and ion chromatography, the author still recommends automatic ion analyzer.